Datasheet AS1710/AS1712 H i g h - O u t p u t - D r i v e , 1 0 M H z , 1 0 V / s , R a i l - t o - R a i l I / O O p A m p s with Shutdown 1 General Description 2 Key Features Constant Output Drive Capability: 50mA The AS1710/AS1712 are low-offset, high-output CMOS op-amps that deliver 200mA of peak output current from a single supply (2.7V to 5.5V). Rail-to-Rail Input and Output Supply Current: 1.6mA These devices were specifically designed to drive typical headset levels (32), as well as bias RF power amplifiers for wireless handset applications. Single-Supply Operation: 2.7V to 5.5V Gain-Bandwidth Product: 10MHz The devices are available as the standard products shown in Table 1. See also Ordering Information on page 18. Table 1. Standard Products Model Description Package AS1710A Single Op Amp with Shutdown SC70-6 AS1710B Single Op Amp SC70-5 AS1712A Quad Op Amp with Shutdown TQFN-16 (3x3mm) High Slew Rate: 10V/s Voltage Gain: 100dB (RLOAD = 100k) Power-Supply Rejection Ratio: -85dB No Phase Reversal for Overdriven Inputs Unity-Gain Stable for Capacitive Loads: Up to 100pF Shutdown Mode (AS1710A) Current: 1nA typ Package Types: - SC70-6 - SC70-5 - TQFN-16 (3x3mm) These rail-to-rail I/O, wide-bandwidth amplifiers exhibit a high slew rate of 10V/s and a gain-bandwidth product of 10MHz. The integrated shutdown feature (not included in B versions) drives the output low. 3 Applications These devices operate over the entire industrial temperature range (-40C to +85C). The devices are ideal for portable/battery-powered audio applications, portable headphone speaker drivers (32), hands-free mobile phone kits, TFT panels, sound ports/cards, set-top boxes, biasing controls, DAC converter buffers, transformer/line drivers, motor drivers, and any other battery-operated audio device. Figure 1. AS1710 - Typical Application RF Audio In Left CIN RIN - AS1710 COUT + Headphone Jack to 32 Stereo Headset + VBIAS + Audio In Right AS1710 CIN RIN COUT + - RF www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.9 1 - 19 AS1710/AS1712 Datasheet - P i n A s s i g n m e n t s 4 Pin Assignments Figure 2. Pin Assignments (Top View) IN+ 1 AS1710-A SC70-6 5 SHDNN VSS 2 5 VDD AS1710-B SC70-5 4 OUT 13 IN4- IN- 3 14 OUT4 4 OUT 16 IN1- IN- 3 IN+ 1 15 OUT1 VSS 2 6 VDD IN1+ 1 12 IN4+ VDD 2 AS1712-A TQFN-16 (3x3mm) IN2+ 3 10 IN3+ 9 IN3- OUT3 8 SHDNN1/2 6 OUT2 5 SHDNN3/4 7 Exposed Pad IN2- 4 11 VSS 4.1 Pin Descriptions Table 2. Pin Descriptions Pin Number See Figure 2 Pin Name Description IN+ Non-inverting Input IN- Inverting Input VDD Positive Supply Input VSS Negative Supply Input. This pin must be connected to ground in single-supply applications. SHDNN OUT Exposed Pad Active Low Shutdown Control Amplifier Output Exposed Pad. This pin also functions as a heat sink. Solder it to a large pad or to the circuit-board ground plane to maximize power dissipation. www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.9 2 - 19 AS1710/AS1712 Datasheet - A b s o l u t e M a x i m u m R a t i n g s 5 Absolute Maximum Ratings Stresses beyond those listed in Table 3 may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in Electrical Characteristics on page 4 is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 3. Absolute Maximum Ratings Parameter Min Max Units +7 V VSS - 0.3 VDD + 0.3 V 1 s Comments Electrical Parameters Supply Voltage (VDD to VSS) Supply Voltage (All Other Pins) Output Short-Circuit Duration to VDD or VSS Thermal Information Continuous Power Dissipation Thermal Resistance JA SC70-5 247 SC70-6 245 TQFN-16 (3x3mm) mW Derate at 31mW/C above 70C 33 C/W on PCB +150 C +150 C Temperature Ranges and Storage Conditions Storage Temperature Range -65 Junction Temperature Package Body Temperature Humidity non-condensing Moisture Sensitive Level www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 5 +260 C 85 % 1 The reflow peak soldering temperature (body temperature) specified is in accordance with IPC/ JEDEC J-STD-020 "Moisture/Reflow Sensitivity Classification for Non-Hermetic Solid State Surface Mount Devices". The lead finish for Pb-free leaded packages is matte tin (100% Sn). Represents a maximum floor life time of unlimited Revision 1.9 3 - 19 AS1710/AS1712 Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s 6 Electrical Characteristics All limits are guaranteed. The parameters with Min and Max values are guaranteed by production tests or SQC (Statistical Quality Control) methods. 6.1 DC Electrical Characteristics VDD = 2.7V, VSS = 0V, VCM = VDD/2, VOUT = VDD/2, RLOAD = Infinite, VSHDNN = VDD, Typical values at TAMB = 25C. Table 4. DC Electrical Characteristics Symbol Parameter TAMB Operating Temperature Range VDD Supply Voltage Range VOFFSET Input Offset Voltage Condition Min Inferred from Power Supply Rejection Ratio Test Max Unit -40 +85 C 2.7 5.5 V +3 mV -3 Typ 0.6 1 pA 1 pA IBIAS Input Bias Current VCM = VSS to VDD IOFFSET Input Offset Current VCM = VSS to VDD RIN Input Resistance VCM Common Mode Input Voltage Range Inferred from Common Mode 1 Rejection Ratio VSS CMRR Common Mode Rejection Ratio VSS < VCM < VDD -45 -70 dB PSRR Power Supply Rejection Ratio VDD = 2.7 to 5.5V -70 -85 dB ROUT Shutdown Output Impedance VSHDNN = 0V (A-Versions) 130 VOUT-SHDNN Shutdown Output Voltage VSHDNN = 0V, RLOAD = 2k to VDD (A-Versions) 170 AVOL VOUT Large Signal Voltage Gain VSS + 0.20V < VOUT < VDD - 0.20V Output Voltage Swing Output Source/Sink Current IDD Quiescent Supply Current per Op Amp Output IDD-SHDNN Shutdown Supply Current per Op Amp (A-Versions) 50 1000 Output Voltage IOUT 50 SHDNN Logic Threshold (A-Versions) SHDNN Input Bias Current VDD - VOH or VOL - VSS VDD - VOH or VOL - VSS M 1 VDD 1 RLOAD = 100k 85 100 RLOAD = 2k 79 92 RLOAD = 200 69 80 300 mV dB RLOAD = 32 350 650 RLOAD = 200 70 120 RLOAD = 2k 9 20 ILOAD = 10mA, VDD = 2.7V 55 100 ILOAD = 30mA, VDD = 5V 100 180 mV mV VDD = 2.7V, V- = VCM, V+ = VCM100mV 100 VDD = 5.0V, V- = VCM, V+ = VCM100mV 200 VDD = 2.7V, VCM = VDD/2 1.6 3.2 VDD = 5.0V, VCM = VDD/2 2.3 4.6 1 2000 VSHDNN = 0V VDD = 2.7V V mA mA 1 Shutdown Mode VSS + 0.3 Normal Operation VDD 0.3 VSS < VSHDNN < VDD (A-Versions) 50 1 nA V pA 1. Guaranteed by design. www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.9 4 - 19 AS1710/AS1712 Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s 6.2 AC Electrical Characteristics VDD = 2.7V, VSS = 0V, VCM = VDD/2, VOUT = VDD/2, RLOAD = Infinite, VSHDNN = VDD, Typical values at TAMB = 25C. Table 5. AC Electrical Characteristics Symbol Parameter Conditions GBWP Gain-Bandwidth Product VCM = VDD/2 10 MHz FPBW Full-Power Bandwidth VOUT = 2VP-P, VDD = 5V 2.5 MHz SR Slew Rate 10 V/s PM Phase Margin 70 deg GM Gain Margin 1 15 dB THD+N Total Harmonic Distortion Plus Noise 0.05 % CIN Input Capacitance 6 pF en Voltage-Noise Density f = 10kHz, VOUT = 2VP-P, AVCL = 1V/V 1 Capacitive-Load Stability Min Typ Max Units f = 1kHz 15 f = 10kHz 10 AVCL = 1V/V, no sustained oscillations 100 pF nV/Hz tSHDN Shutdown Time (AS1710A) 1 s tENABLE Enable Time from Shutdown (AS1710A) 7 s tON Power-Up Time 20 ns 1. Guaranteed by design. www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.9 5 - 19 AS1710/AS1712 Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s 7 Typical Operating Characteristics VDD = 2.7V; VSS = 0V, VCM = VDD/2, VOUT = VDD/2, RLOAD = , VSHDNN = VDD TAMB = +25C (unless otherwise specified). Figure 3. Gain and Phase vs. Frequency 120 Figure 4. Gain and Phase vs. Frequency, CLOAD = 100pF 320 120 320 Gain 280 80 240 80 240 60 200 Phase 40 160 20 120 0 -20 -40 0.001 0.1 10 1000 Gain (dB) . 100 Phase (deg) 280 Gain (dB) . 100 60 40 160 20 120 80 0 80 40 -20 40 0 100000 -40 0.001 Frequency (kHz) 10 1000 0 100000 Figure 6. CMRR vs. Frequency 100 100 90 PSRR pos 90 80 PSRR neg 80 70 CMRR (dB) . PSRR (dB) . 0.1 Frequency (kHz) Figure 5. PSRR vs. Frequency 60 50 40 60 50 40 30 20 20 10 10 0,1 10 1000 0 0.001 0.1 10 1000 Frequency (kHz) Frequency (kHz) www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 CMRR 70 30 0 0,001 200 Phase Phase (deg) Gain Revision 1.9 6 - 19 AS1710/AS1712 Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s Figure 7. Supply Current vs. Temperature Figure 8. Shutdown Current vs. Temperature 1000 4 . Shutdown Current (nA) Supply Current (mA) . 3.5 3 5V 2.5 2 2.7V 1.5 1 100 10 1 0.5 0 -45 -20 5 30 55 80 105 0.1 -45 130 -20 5 Figure 9. Supply Current vs. Common-Mode Voltage 55 80 105 130 Figure 10. Input Voltage Noise vs. Frequency 3 1000 Input Voltage Noise (nV/ Hz) . Supply Current (mA) . 30 Temperature (C) Temperature (C) 2.5 5V 100 2 1.5 2.7V 1 0.5 1 0.001 0 0 1 2 3 4 10 5 0.1 Common-Mode Voltage (V) 10 1000 Frequency (kHz) Figure 11. Output Voltage vs. Output Current, sourcing Figure 12. Output Voltage vs. Output Current, sinking 5 1.75 5V 1.5 t<1s 4 Output Voltage (V) . Output Voltage (V) . 4.5 t>10s 3.5 3 2.7V 2.5 2 1.5 t<1s 1.25 1 50 100 150 t<1s t<1s 0.75 0.5 2.7V t>10s 0 t>10s 0.25 1 0.5 t>10s 5V 0 200 250 0 Output Current (mA) www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 50 100 150 200 Output Current (mA) Revision 1.9 7 - 19 AS1710/AS1712 Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s Figure 13. Output Swing High vs. Temperature Figure 14. Output Swing Low vs. Temperature 90 90 VOUT - VSS (mV) . 100 VOUT - VSS (mV) . 100 80 200 70 60 10mA 50 40 -45 80 200 70 60 10mA 50 -20 5 30 55 80 105 130 40 -45 Temperature (C) -20 5 30 55 80 105 130 Temperature (C) 50mV/DIV OUT OUT 50mV/DIV IN Figure 16. Transient Response, 100mV, 100pF load IN Figure 15. Transient Response, 100mV, 10pF load 500ns/Div 500ns/Div Figure 18. Transient Response, 1V, 100pF load 500mV/DIV OUT OUT 500mV/DIV IN IN Figure 17. Transient Response, 1V, 10pF load 500ns/Div www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 500ns/Div Revision 1.9 8 - 19 AS1710/AS1712 Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s Figure 20. Transient Response, 2V, 100pF load 1V/DIV OUT OUT 1V/DIV IN IN Figure 19. Transient Response, 2V, 10pF load 500ns/Div www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 500ns/Div Revision 1.9 9 - 19 AS1710/AS1712 Datasheet - A p p l i c a t i o n I n f o r m a t i o n 8 Application Information 8.1 Package Power Dissipation Caution: Due to the high output current drive, this op-amp can exceed the absolute maximum power-dissipation rating. Normally, when peak current is less than or equal to 40mA the maximum package power dissipation is not exceeded for any of the package types offered. The absolute maximum power-dissipation rating of each package should always be verified. (EQ 1) gives an approximation of the package power dissipation: PPACKAGEDISS VRMS IRMS COS (EQ 1) Where: VRMS is the RMS voltage from VDD to VOUT when sourcing current, and from VOUT to VSS when sinking current. IRMS is the RMS current flowing in or out of the op-amp and the load. is the phase difference between the voltage and the current. For resistive loads, COS = 1. Figure 21. Typical AS1710/AS1712 Single-Supply Application 3.6V R C + VIN = 2VP-P AS1710 R - 32 VRMS can be calculated as: VRMS (VDD - VDC) + VPEAK /2 (EQ 2) Where: VDC is the DC component of the output voltage. VPEAK is the highest positive excursion of the AC component of the output voltage. For the circuit shown in Figure 21: VRMS = (3.6V - 1.8V) + 1.0V/2 = 2.507VRMS IRMS can be calculated as: IRMS IDC + (IPEAK/2) (EQ 3) Where: IDC is the DC component of the output current. IPEAK is the highest positive excursion of the AC component of the output current. For the circuit shown in Figure 21: IRMS = (1.8V/32) + (1.0V/32)/2 = 78.4mARMS Therefore, for the circuit in Figure 21 the package power dissipation can be calculated as: PPACKAGEDISS = VRMS IRMS COS = 196mW Adding a coupling capacitor improves the package power dissipation because there is no DC current to the load, as shown in Figure 22 on page 11. www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.9 10 - 19 AS1710/AS1712 Datasheet - A p p l i c a t i o n I n f o r m a t i o n 8.2 60mW Single-Supply Stereo Headphone Driver Two AS1710 amplifiers can be used as a single-supply, stereo headphone driver. The circuit shown in Figure 22 can deliver 60mW per channel with 1% distortion from a single 5V supply. Figure 22. Stereo Headphone Driver Application (with Coupling Capacitor) RF Audio In Left CIN RIN - AS1710 COUT + Headphone Jack to 32 Stereo Headset + VBIAS + Audio In Right AS1710 CIN COUT + - RIN RF In Figure 22, CIN and RIN form a high-pass filter that removes the DC bias from the incoming signal. The -3dB point of the high-pass filter is given by: f-3dB = 1/(2RINCIN) (EQ 4) Choose gain-setting resistors RIN and RF according to the amount of desired gain, keeping in mind the maximum output amplitude. COUT blocks the DC component of the amplifier output, preventing DC current flowing to the load. The output capacitor and the load impedance form a high-pass filter with the -3dB point determined by: f-3dB = 1/(2RLOADCOUT) (EQ 5) For a 32 load, a 100F aluminum electrolytic capacitor gives a low-frequency pole at 50Hz. 8.3 Rail-to-Rail Input Stage The AS1710/AS1712 CMOS op-amps have parallel connected N- and P-channel differential input stages that combine to accept a commonmode range extending to both supply rails. The N-channel stage is active for common-mode input voltages typically greater than (VSS + 1.2V), and the p-channel stage is active for common-mode input voltages typically less than (VDD - 1.2V). 8.4 Rail-to-Rail Output Stage The minimum output is within millivolts of ground for single- supply operation, where the load is referenced to ground (VSS). Figure 23 shows the input voltage range and the output voltage swing of an AS1710 connected as a voltage follower. The maximum output voltage swing is load dependent although it is guaranteed to be within 500mV of the positive rail (VDD = 2.7V) even with maximum load (32 to ground). www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.9 11 - 19 AS1710/AS1712 Datasheet - A p p l i c a t i o n I n f o r m a t i o n Figure 24. Rail-to-Rail Input/Output Range, 32 OUT OUT 1V/DIV 1V/DIV IN IN Figure 23. Rail-to-Rail Input/Output Range, 100k VCC = 3.0V, RLOAD = 100k VCC = 3.0V, RLOAD = 32 2.5s/Div 2.5s/Div Note: The absolute maximum ratings (see page 3) for power dissipation and output short-circuit duration (10s, max) must be adhered to since the output current can exceed 200mA (see Typical Operating Characteristics on page 6). 8.5 Input Capacitance The parallel-connected differential input stages for rail-to-rail operation results in relatively large input capacitance CIN (6pF typ). This introduces a pole at frequency (2RCIN)-1, where R is the parallel combination of the gain-setting resistors for the inverting or non-inverting amplifier configuration (Figure 25). If the pole frequency is less than or comparable to the unity-gain bandwidth (10MHz), the phase margin is reduced, and the amplifier exhibits degraded AC performance through either ringing in the step response or sustained oscillations. Figure 25. Inverting and Non-inverting Amplifiers with Feedback Compensation Inverting CF R + VIN RF VIN Non-Inverting R = R II RF RFCF = RCIN AS1710 VOUT - - AS1710 VOUT RF + CF R The pole frequency is 10MHz when R = 2k. To maximize stability, R << 2k is recommended. To improve step response when R > 2k, connect a small capacitor (CF) between the inverting input and output. CF can be calculated by: CF = 6(R/RF) [pf] (EQ 6) Where: RF is the feedback resistor. R is the gain-setting resistor. www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.9 12 - 19 AS1710/AS1712 Datasheet - A p p l i c a t i o n I n f o r m a t i o n 8.6 Driving Capacitive Loads The AS1710/AS1712 amplifiers have a high tolerance for capacitive loads, and are stable with capacitive loads up to 100pF. Figure 26 shows a typical non-inverting capacitive-load driving circuit in the unity-gain configuration. Figure 26. Capacitive-Load Driving Circuit - RISO AS1710 + CF Note: Resistor RISO improves the circuit's phase margin by isolating the load capacitor from the AS1710/AS1712 output. 8.7 Power-Up The AS1710/AS1712 typically settle within 5s after power-up. 8.8 Shutdown When SHDNN (not included in B versions) is pulled low, supply current drops to 0.5A (per amplifier, VDD = 2.7V), the amplifiers are disabled, and their outputs are driven to VSS. Because the outputs are actively driven to VSS in shutdown, any pull-up resistor on the output causes a current drain from the supply. Note: Pulling SHDNN high enables the amplifier. In the AS1712 the amplifiers shutdown in pairs. When exiting shutdown, there is a 6s delay before the amplifier output becomes active. 8.9 Power Supplies and Layout The AS1710/AS1712 can operate from a single 2.7 to 5.5V supply or from dual 1.35 to 2.5V supplies. Good design improves device performance by decreasing the amount of stray capacitance at the op-amp inputs/outputs. For single-supply operation, bypass the power supply with a 0.1F ceramic capacitor. For dual-supply operation, bypass each supply to ground. Decrease stray capacitance by placing external components close to the op-amp pins, minimizing trace and lead lengths. www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.9 13 - 19 AS1710/AS1712 Datasheet - P a c k a g e D r a w i n g s a n d M a r k i n g s 9 Package Drawings and Markings The devices are available in a SC70-5, SC70-6, and TQFN-16 (3x3mm) package. Figure 27. SC70-5 Package Symbol A A1 A2 b c D E E1 e e1 L L1 L2 R R1 AAB XXX 1 aaa bbb ccc ddd N Min 0.70 0.15 0.08 0.26 0.10 0.10 0 4 - Nom 0.90 2.00 BSC 2.10 BSC 1.25 BSC 0.65 BSC 1.30 BSC 0.36 0.42 REF 0.15 BSC 4 Max 1.10 0.10 1.00 0.30 0.22 0.15 0.30 0.10 0.10 5 12 - 0.46 0.25 8 Notes: 1. Dimensions and tolerancing conform to ASME Y14.5M-1994. 2. All dimensions are in millimeters. Angles are in degrees. 3. Datums A and B to be determined at datum H. www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.9 14 - 19 AS1710/AS1712 Datasheet - P a c k a g e D r a w i n g s a n d M a r k i n g s Figure 28. SC70-6 Package Symbol A A1 A2 b c D E E1 e e1 L L1 L2 R R1 AAA XXX 1 aaa bbb ccc ddd N Min 0.70 0.15 0.08 0.26 0.10 0.10 0 4 - Nom 0.90 2.00 BSC 2.10 BSC 1.25 BSC 0.65 BSC 1.30 BSC 0.36 0.42 REF 0.15 BSC 4 Max 1.10 0.10 1.00 0.30 0.22 0.15 0.30 0.10 0.10 6 12 - 0.46 0.25 8 Notes: 1. Dimensions and tolerancing conform to ASME Y14.5M-1994. 2. All dimensions are in millimeters. Angles are in degrees. 3. Datums A and B to be determined at datum H. www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.9 15 - 19 AS1710/AS1712 Datasheet - P a c k a g e D r a w i n g s a n d M a r k i n g s Figure 29. TQFN-16 (3x3mm) XXXX AS08 Notes: 1. 2. 3. 4. 5. Dimensions and tolerancing conform to ASME Y14.5M-1994. All dimensions are in millimeters. Angles are in degrees. Coplanarity applies to the exposed heat slug as well as the terminal. Radius on terminal is optional. N is the total number of terminals. www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.9 Symbol A A1 A3 L b D E e D2 E2 aaa bbb ccc ddd eee fff N Min 0.70 0 0.30 0.18 1.30 1.30 - Nom 0.75 0.02 0.20 REF 0.40 0.25 3.00 BSC 3.00 BSC 0.50 BSC 1.45 1.45 0.15 0.10 0.10 0.05 0.08 0.10 16 Max 0.80 0.05 0.50 0.30 1.55 1.55 - 16 - 19 AS1710/AS1712 Datasheet - P a c k a g e D r a w i n g s a n d M a r k i n g s Revision History Revision Date Owner Description 1.8 - - Initial revision 1.9 01 Aug, 2011 afe Updated Electrical Characteristics (page 4), Package Drawings and Markings (page 14). Note: Typos may not be explicitly mentioned under revision history. www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.9 17 - 19 AS1710/AS1712 Datasheet 10 Ordering Information The device is available as the standard products shown in Table 6. Table 6. Ordering Information Ordering Code Marking Description Delivery Form Package AS1710A-ASCT AAA Single Op Amp with Shutdown Tape and Reel SC70-6 AS1710B-ASCT AAB Single Op Amp Tape and Reel SC70-5 AS1712A-AQFT ASO8 Quad Op Amp with Shutdown Tape and Reel TQFN-16 (3x3mm) Note: All products are RoHS compliant and austriamicrosystems green. Buy our products or get free samples online at ICdirect: http://www.austriamicrosystems.com/ICdirect Technical Support is available at http://www.austriamicrosystems.com/Technical-Support For further information and requests, please contact us mailto:sales@austriamicrosystems.com or find your local distributor at http://www.austriamicrosystems.com/distributor www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.9 18 - 19 AS1710/AS1712 Datasheet - O r d e r i n g I n f o r m a t i o n Copyrights Copyright (c) 1997-2011, austriamicrosystems AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered (R). 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