May 2010 Doc ID 6031 Rev 7 1/16
16
TS971, TS972, TS974
Output rail-to-rail very low noise operational amplifier
Features
Rail-to-rail output voltage swing
±2.4 V at VCC = ±2.5 V
Very low noise level: 4 nV/Hz
Ultra low distortion: 0.003%
High dynamic features: 12 MHz, 4 V/µs
Operating range: 2.7 to 10 V
ESD protection (2 kV)
Latch-up immunity (class A)
Applications
Portable devices (CD players, PDAs)
Portable communication (cell phones, pagers)
Instrumentation and sensoring
Professional audio circuits
Description
The TS97x family of operational amplifiers
operates with voltages as low as ±1.35 V and
features output rail-to-rail signal swing. The
TS97x are particularly well suited for portable and
battery-supplied equipment. Very low noise and
low distortion characteristics make them ideal for
audio pre-amplification.
The TS971 is available in a variety of packages to
suit all types of applications. For applications
where space-saving is critical, the SOT23
package (2.8 x 2.9 mm) or the DFN package
(3 x 3 mm) simplify the board design because
they can be placed everywhere.
TS971ILT (SOT23-5L)
1
2
34
5
Inverting input
Non-inverting input
Output
V
DD
V
CC
TS971ID-TS971IDT (SO-8)
1
2
3
45
6
7
8
-
+
Inverting Input 1
N.C.
Non-inverting Input 1
V
DD
V
CC
Output 2
N.C.
N.C.
1
2
3
45
6
7
8
-
+-
+
Inverting Input 1
Output 1
Non-inverting Input 1
V
DD
V
CC
Output 2
Inverting Input 2
Non-inverting Input 2
TS972ID-TS972IDT (SO-8)
TS972IPT (TSSOP8)
TS972IQT (DFN8)
1
2
3
45
6
7
8
Output 1
Inverting Input 1
Non Inverting Input 1
VDD
VCC
Output 2
Inverting Input 2
Non Inverting Input 2
1
2
3
45
6
7
8
Output 1
Inverting Input 1
Non Inverting Input 1
VDD
VCC
Output 2
Inverting Input 2
Non Inverting Input 2
TS974ID-TS974IDT (SO-14)
TS974IPT (TSSOP14)
Inverting Input 2
Non-inverting Input 2
Non-inverting Input 1
DD
V
1
2
3
4
8
5
6
7
9
10
11
12
13
14
CC
V
Output 3
Output 4
Non-inverting Input 4
Inverting Input 4
Non-inverting Input 3
Inverting Input 3
-
+
-
+
-
+
-
+
Output 1
Inverting Input 1
Output 2
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Absolute maximum ratings and operating conditions TS971, TS972, TS974
2/16 Doc ID 6031 Rev 7
1 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings AMR
Symbol Parameter Value Unit
VCC Supply voltage (1)
1. All voltage values, except differential voltage are with respect to network ground terminal.
12 V
Vid Differential input voltage (2)
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
±1 V
Vin Input voltage (3)
3. The magnitude of input and output voltages must never exceed VCC +0.3 V.
VDD -0.3 to VCC +0.3 V
Tstg Storage temperature range -65 to +150
TjMaximum junction temperature 150 °C
Rthja
Thermal resistance junction to ambient (4)
SOT23-5
DFN8
SO-8
SO-14
TSSOP8
TSSOP14
4. Short-circuits can cause excessive heating and destructive dissipation. Values are typical.
250
40
125
105
120
100
°C/W
Rthjc
Thermal resistance junction to case(4)
SOT23-5
DFN8
SO-8
SO-14
TSSOP8
TSSOP14
81
5.2
40
31
37
32
°C/W
ESD
HBM: human body model(5)
5. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a
1.5kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
2kV
MM: machine model(6)
6. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of
connected pin combinations while the other pins are floating.
200 V
CDM: charged device model(7)
7. Charged device model: all pins and package are charged together to the specified voltage and then
discharged directly to ground through only one pin. This is done for all pins.
No value specified for CDM on SOT23-5 package.
1.5 kV
Lead temperature (soldering, 10sec) 260 °C
TS971, TS972, TS974 Absolute maximum ratings and operating conditions
Doc ID 6031 Rev 7 3/16
Table 2. Operating conditions
Symbol Parameter Value Unit
VCC Supply voltage 2.7 to 10 V
Vicm Common mode input voltage range VDD +1.15 to VCC -1.15 V
Toper Operating free air temperature range -40 to +125 °C
Electrical characteristics TS971, TS972, TS974
4/16 Doc ID 6031 Rev 7
2 Electrical characteristics
Table 3. VCC = +2.5 V, VDD = -2.5 V, Tamb = 25°C (unless otherwise specified)
Symbol Parameter Conditions Min. Typ. Max. Unit
Vio Input offset voltage Tmin T
amb T
max
15
7mV
DVio Input offset voltage drift Vicm = 0 V, Vo = 0 V 5 µV/°C
Iio Input offset current Vicm = 0 V, Vo = 0 V 10 150 nA
Iib Input bias current Vicm = 0 V, Vo = 0 V
Tmin T
amb T
max
200
200
750
1000 nA
Vicm
Common mode input voltage
range -1.35 1.35 V
CMR Common mode rejection ratio Vicm = ±1.35 V 60 85 dB
SVR Supply voltage rejection ratio VCC = ±2 V to ±3 V 60 70 dB
Avd Large signal voltage gain RL = 2 kΩ70 80 dB
VOH High level output voltage RL = 2 kΩ22.4 V
VOL Low level output voltage RL = 2 kΩ-2.4 -2 V
Isource Output source current 1.5 mA
Isink Output sink current 100 mA
ICC Supply current per amplifier Unity gain - no load 2 2.8 mA
GBP Gain bandwidth product f = 100 kHz, RL = 2 kΩ, CL = 100 pF 8.5 12 MHz
SR Slew rate AV = 1, Vin = ±1 V 2.8 4 V/µs
m Phase margin at unit gain RL = 2 kΩ, CL = 100 pF 60 Degrees
Gm Gain margin RL = 2 kΩ, CL = 100 pF 10 dB
enEquivalent input noise voltage f = 100 kHz 4 nV/Hz
THD Total harmonic distortion f = 1 kHz, AV = -1, RL = 10 kΩ0.003 %
TS971, TS972, TS974 Electrical characteristics
Doc ID 6031 Rev 7 5/16
Figure 1. Input offset voltage distribution Figure 2. Voltage gain & phase vs. frequency
VCC = 5 V
Figure 3. Voltage gain & phase vs. frequency
VCC = 2.7 V
Figure 4. THS vs. Vout, VCC = 5 V
Figure 5. THD vs. Vout, VCC = 2.7 V Figure 6. THD vs. frequency
Electrical characteristics TS971, TS972, TS974
6/16 Doc ID 6031 Rev 7
Figure 7. Noise voltage vs. frequency Figure 8. Gain bandwidth product vs. Iout
Figure 9. Phase margin vs. Iout Figure 10. Phase margin vs. VCC
RL = 10 k, CL = 30 pF
Figure 11. Phase margin vs. VCC
CL = 30, 130 and 250 pF
Figure 12. Gain margin vs. VCC
TS971, TS972, TS974 Package information
Doc ID 6031 Rev 7 7/16
3 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Package information TS971, TS972, TS974
8/16 Doc ID 6031 Rev 7
3.1 SOT23-5 package information
Figure 13. SOT23-5 package mechanical drawing
Table 4. SOT23-5 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 0.90 1.20 1.45 0.035 0.047 0.057
A1 0.15 0.006
A2 0.90 1.05 1.30 0.035 0.041 0.051
B 0.35 0.40 0.50 0.013 0.015 0.019
C 0.09 0.15 0.20 0.003 0.006 0.008
D 2.80 2.90 3.00 0.110 0.114 0.118
D1 1.90 0.075
e 0.95 0.037
E 2.60 2.80 3.00 0.102 0.110 0.118
F 1.50 1.60 1.75 0.059 0.063 0.069
L 0.10 0.35 0.60 0.004 0.013 0.023
K 0 degrees 10 degrees
TS971, TS972, TS974 Package information
Doc ID 6031 Rev 7 9/16
3.2 SO-8 package information
Figure 14. SO-8 package mechanical drawing
Table 5. SO-8 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A1.750.069
A1 0.10 0.25 0.004 0.010
A2 1.25 0.049
b 0.28 0.48 0.011 0.019
c 0.17 0.23 0.007 0.010
D 4.80 4.90 5.00 0.189 0.193 0.197
E 5.80 6.00 6.20 0.228 0.236 0.244
E1 3.80 3.90 4.00 0.150 0.154 0.157
e 1.27 0.050
h 0.25 0.50 0.010 0.020
L 0.40 1.27 0.016 0.050
L1 1.04 0.040
k0° 8°1° 8°
ccc 0.10 0.004
Package information TS971, TS972, TS974
10/16 Doc ID 6031 Rev 7
3.3 TSSOP8 package information
Figure 15. TSSOP8 package mechanical drawing
Table 6. TSSOP8 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A1.200.047
A1 0.05 0.15 0.002 0.006
A2 0.80 1.00 1.05 0.031 0.039 0.041
b 0.19 0.30 0.007 0.012
c 0.09 0.20 0.004 0.008
D 2.90 3.00 3.10 0.114 0.118 0.122
E 6.20 6.40 6.60 0.244 0.252 0.260
E1 4.30 4.40 4.50 0.169 0.173 0.177
e 0.65 0.0256
k0° 8°0° 8°
L 0.45 0.60 0.75 0.018 0.024 0.030
L1 1.00 0.039
aaa 0.10 0.004
TS971, TS972, TS974 Package information
Doc ID 6031 Rev 7 11/16
3.4 SO-14 package information
Figure 16. SO-14 package mechanical drawing
Table 7. SO-14 package mechanical data
Dimensions
Ref.
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 1.35 1.75 0.05 0.068
A1 0.10 0.25 0.004 0.009
A2 1.10 1.65 0.04 0.06
B 0.33 0.51 0.01 0.02
C 0.19 0.25 0.007 0.009
D 8.55 8.75 0.33 0.34
E 3.80 4.0 0.15 0.15
e1.27 0.05
H 5.80 6.20 0.22 0.24
h 0.25 0.50 0.009 0.02
L 0.40 1.27 0.015 0.05
k 8° (max.)
ddd 0.10 0.004
Package information TS971, TS972, TS974
12/16 Doc ID 6031 Rev 7
3.5 TSSOP14 package information
Figure 17. TSSOP14 package mechanical drawing
Table 8. TSSOP14 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A1.200.047
A1 0.05 0.15 0.002 0.004 0.006
A2 0.80 1.00 1.05 0.031 0.039 0.041
b 0.19 0.30 0.007 0.012
c 0.09 0.20 0.004 0.0089
D 4.90 5.00 5.10 0.193 0.197 0.201
E 6.20 6.40 6.60 0.244 0.252 0.260
E1 4.30 4.40 4.50 0.169 0.173 0.176
e 0.65 0.0256
L 0.45 0.60 0.75 0.018 0.024 0.030
L1 1.00 0.039
k0° 8°0° 8°
aaa 0.10 0.004
TS971, TS972, TS974 Package information
Doc ID 6031 Rev 7 13/16
3.6 DFN8 exposed pad package information
Figure 18. DFN8 3 x 3 exposed pad package mechanical drawing (pitch 0.5 mm)
Table 9. DFN8 3 x 3 mm exposed pad package mechanical data (pitch 0.5 mm)
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 0.80 0.90 1.00 0.031 0.035 0.039
A1 0.02 0.05 0.0008 0.0019
A2 0.55 0.65 0.80 0.021 0.025 0.031
A3 0.20 0.008
b 0.18 0.25 0.30 0.007 0.010 0.012
D 2.85 3.00 3.15 0.112 0.118 0.124
D2 2.20 2.70 0.087 0.106
E 2.85 3.00 3.15 0.112 0.118 0.124
E2 1.40 1.75 0.055 0.069
e 0.50 0.020
L 0.30 0.40 0.50 0.012 0.016 0.020
ddd 0.08 0.003
Ordering information TS971, TS972, TS974
14/16 Doc ID 6031 Rev 7
4 Ordering information
Table 10. Order codes
Order code Temperature
range Package Packing Marking
TS971ID
TS971IDT
-40°C, +125°C
SO-8 Tube or
Tape & reel 971I
TS971ILT SOT23-5L
Tape & reel
K120
TS971IYD(1)
TS971IYDT(1)
SO-8
(Automotive grade level) 971IY
TS971IYLT(2) SOT23-5L
(Automotive grade level) K121
TS972ID
TS972IDT SO-8 Tube or
Tape & reel
972I
TS972IPT TSSOP8
(Thin shrink outline package) Tap e & Reel
TS972IQT DFN8
(Dual micro lead frame package)
TS972IYD(1)
TS972IYDT(1)
SO-8
(Automotive grade level)
Tube or
Tape & reel 972IY
TS972IYPT(2) TSSOP8
(Automotive grade level) Tape & reel 972IY
TS974ID
TS974IDT SO-14 Tube or
Tape & reel 974I
TS974IPT TSSOP14
(Thin shrink outline package)
Tape & reel
TS974IYD(1)
TS974IYDT(1)
SO-14
(Automotive grade level) 974IY
TS974IYPT(2) TSSOP14
(Automotive grade level) 974IY
1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001
& Q 002 or equivalent.
2. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC
Q001 & Q 002 or equivalent are on-going.
TS971, TS972, TS974 Revision history
Doc ID 6031 Rev 7 15/16
5 Revision history
Table 11. Document revision history
Date Revision Changes
15-Nov- 2002 1 First release.
9-May- 2005 2 Modifications on AMR table (explanation of Vid and Vi limits)
31-Aug-2005 3 PPAP references inserted in the datasheet, see Table 1 on page 2.
9-Dec-2005 4
Thermal resistance junction to case data added in Table 1. on page 2
Missing PPAP references inserted in the datasheet, see Table 10:
Order codes.
3-Oct-2007 5
Added Rthja and Rthjc values for DIP8 and DIP14 packages in
Tabl e 1 .
ESD footnotes updated in Table 1: Absolute maximum ratings AMR.
Description section updated on cover page.
Markings for automotive grade parts corrected in Table 10: Order
codes.
20-Dec-2007 6
Reformatted package information in Section 3: Package information.
Footnotes for automotive grade parts corrected in Table 10: Order
codes.
06-May-2010 7
Updated package information (drawings and data) in Chapter 3.
Removed DIP package order codes from Chapter 4: Ordering
information.
TS971, TS972, TS974
16/16 Doc ID 6031 Rev 7
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