® ® ADS-927
14-Bit, 1MHz, Low-Power
Sampling A/D Converters
FEATURES
•14-bit resolution
•1MHz sampling rate
•Functionally complete
•No missing codes
•Small 24-pin DDIP or SMT package
•Low power, 1.9 Watts maximum
•Operates from ±15V or ±12V supplies
•Bipolar ±5V input range
GENERAL DESCRIPTION
The ADS-927 is a high-performance, 14-bit, 1MHz sampling
A/D converter. This device samples input signals up to Nyquist
frequencies with no missing codes. The ADS-927 features
outstanding dynamic performance including a THD of –80dB.
Housed in a small 24-pin DDIP or SMT (gull-wing) package,
the functionally complete ADS-927 contains a fast-settling
sample-hold amplifier, a subranging (two-pass) A/D converter,
a precise voltage reference, timing/control logic, and error-
correction circuitry. Digital input and output levels are TTL.
Requiring ±15V (or ±12V) and +5V supplies, the ADS-927
dissipates only 1.95W (1.65W for ±12V), maximum. The unit is
offered with a bipolar input (–5V to +5V). Models are available
for use in either commercial (0 to +70°C) or military (–55 to
+125°C) operating temperature ranges. Applications include
radar, sonar, spectrum analysis, and graphic/medical imaging.
INPUT/OUTPUT CONNECTIONS
PIN FUNCTION PIN FUNCTION
1BIT 14 (LSB) 24 –12V/–15V SUPPLY
2BIT 13 23 ANALOG GROUND
3BIT 12 22 +12V/+15V SUPPLY
4BIT 11 21 +10V REFERENCE OUT
5BIT 10 20 ANALOG INPUT
6BIT 9 19 ANALOG GROUND
7BIT 8 18 BIT 1 (MSB)
8BIT 7 17 BIT 2
9BIT 6 16 START CONVERT
10 BIT 5 15 EOC
11 BIT 4 14 DIGITAL GROUND
12 BIT 3 13 +5V SUPPLY
Figure 1. ADS-927 Functional Block Diagram
DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048-1151 (U.S.A.) • Tel: (508) 339-3000 Fax: (508) 339-6356 • For immediate assistance: (800) 233-2765
REF
REGISTERREGISTER
18 BIT 1 (MSB)
17 BIT 2
12 BIT 3
11 BIT 4
10 BIT 5
9 BIT 6
8 BIT 7
7 BIT 8
6 BIT 9
5 BIT 10
4 BIT 11
3 BIT 12
2 BIT 13
1 BIT 14 (LSB)
TIMING AND
CONTROL LOGIC
+10V REF. OUT 21
START CONVERT 16
EOC 15
DIGITAL CORRECTION LOGIC
DAC
FLASH
ADC
BUFFER
–
+
S/H
ANALOG INPUT 20
13
+5V SUPPLY
22
+12V/+15V SUPPLY
19, 23
ANALOG GROUND
14
DIGITAL GROUND
24
–12V/–15V SUPPLY
S2
S1
® ®
ADS-927
2
ABSOLUTE MAXIMUM RATINGS
PARAMETERS LIMITS UNITS
+12V/+15V Supply (Pin 22) 0 to +16 Volts
–12V/–15V Supply (pin 24) 0 to –16 Volts
+5V Supply (Pin 13) 0 to +6 Volts
Digital Input (Pin 16) –0.3 to +VDD +0.3 Volts
Analog Input (Pin 20) ±15 Volts
Lead Temperature (10 seconds) +300 °C
PHYSICAL/ENVIRONMENTAL
PARAMETERS MIN. TYP.MAX. UNITS
Operating Temp. Range, Case
ADS-927MC, GC 0—+70 °C
ADS-927MM, GM, 883 –55 —+125 °C
Thermal Impedance
θjc6°C/Watt
θca 24 °C/Watt
Storage Temperature –65 —+150 °C
Package Type 24-pin, metal-sealed, ceramic DDIP or SMT
Weight 0.42 ounces (12 grams)
+25°C 0 to +70°C –55 to +125°C
ANALOG INPUT MIN. TYP. MAX. MIN. TYP. MAX. MIN. TYP. MAX. UNITS
Input Voltage Range ➁—±5 — — ±5 ——±5 —Volts
Input Resistance —1— — 1— — 1—kΩ
Input Capacitance —715 —715 —715 pF
DIGITAL INPUT
Logic Levels
Logic "1" +2.0 — — +2.0 — — +2.0 — — Volts
Logic "0" — — +0.8 — — +0.8 — — +0.8 Volts
Logic Loading "1" — — +20 — — +20 — — +20 µA
Logic Loading "0" — — –20 — — –20 — — –20 µA
Start Convert Positive Pulse Width ➂175 200 225 175 200 225 175 200 225 ns
STATIC PERFORMANCE
Resolution —14 — — 14 ——14 —Bits
Integral Nonlinearity (fin = 10kHz) —±0.5 — — ±0.75 — — ±1.5 —LSB
Differential Nonlinearity (fin = 10kHz) —±0.5 ±0.95 —±0.5 ±0.95 —±0.75 ±0.99 LSB
Full Scale Absolute Accuracy —±0.08 ±0.15 —±0.15 ±0.25 —±0.3 ±0.5 %FSR
Bipolar Zero Error (Tech Note 2) —±0.05 ±0.1 —±0.1 ±0.25 —±0.15 ±0.3 %FSR
Bipolar Offset Error (Tech Note 2) —±0.05 ±0.1 —±0.1 ±0.25 —±0.25 ±0.4 %FSR
Gain Error (Tech Note 2) —±0.1 ±0.15 —±0.15 ±0.25 —±0.25 ±0.4 %
No Missing Codes (fin = 10kHz) 14 — — 14 — — 14 — — Bits
DYNAMIC PERFORMANCE
Peak Harmonics (–0.5dB)
dc to 100kHz —–91 –83 —–90 — — –88 —dB
100kHz to 500kHz —–82–78 —–82–78 —–80 –77 dB
Total Harmonic Distortion (–0.5dB)
dc to 100kHz —–90 –81 —–89 — — –87 —dB
100kHz to 500kHz —–80 –76 —–80 –76 —–79 –74 dB
Signal-to-Noise Ratio
(w/o distortion, –0.5dB)
dc to 100kHz 77 79 —74 78 —73 77 —dB
100kHz to 500kHz 75 78 —74 78 —73 76 —dB
Signal-to-Noise Ratio ➃
(& distortion, –0.5dB)
dc to 100kHz 76 78 —73 77 —71 76 —dB
100kHz to 500kHz 73 76 —73 76 —71 75 —dB
Two-Tone Intermodulation
Distortion (fin = 100kHz,
240kHz, fs = 1MHz, –0.5dB) —–87 — — –86— — –85 —dB
Noise —350 — — 350 — — 350 —µVrms
Input Bandwidth (–3dB)
Small Signal (–20dB input) —7— — 7— — 7—MHz
Large Signal (–0.5dB input) —5— — 5— — 5—MHz
Feedthrough Rejection (fin = 500kHz) —84 — — 84 — — 84 —dB
Slew Rate —±60 — — ±60 — — ±60 —V/µs
Aperture Delay Time —±20 — — ±20 — — ±20 —ns
Aperture Uncertainty —5— — 5— — 5—ps rms
S/H Acquisition Time
(to ±0.003%FSR, 10V step) 335 390 445 335 390 445 335 390 445 ns
Overvoltage Recovery Time ➄—400 1000 —400 1000 —400 1000 ns
A/D Conversion Rate 1— — 1— — 1— — MHz
FUNCTIONAL SPECIFICATIONS
(TA = +25°C, ±VCC = ±15V (or ±12V), +VDD = +5V, 1MHz sampling rate, and a minimum 1 minute warmup ➀ unless otherwise specified.)
® ® ADS-927
3
+25°C 0 to +70°C –55 to +125°C
ANALOG OUTPUT MIN. TYP. MAX. MIN. TYP. MAX. MIN. TYP. MAX. UNITS
Internal Reference
Voltage +9.95 +10.0 +10.05 +9.95 +10.0 +10.05 +9.95 +10.0 +10.05 Volts
Drift —±5 — — ±5 — — ±5 —ppm/°C
External Current — — 1.5 — — 1.5 — — 1.5 mA
DIGITAL OUTPUTS
Logic Levels
Logic "1" +2.4 — — +2.4 — — +2.4 — — Volts
Logic "0" — — +0.4 — — +0.4 — — +0.4 Volts
Logic Loading "1" — — –4 — — –4 — — –4 mA
Logic Loading "0" — — +4 — — +4 — — +4 mA
Delay, Falling Edge of EOC
to Output Data Valid — — 35 — — 35 — — 35 ns
Output Coding Offset Binary
POWER REQUIREMENTS, ±15V
Power Supply Ranges
+15V Supply +14.5 +15.0 +15.5 +14.5 +15.0 +15.5 +14.5 +15.0 +15.5 Volts
–15V Supply –14.5 –15.0 –15.5 –14.5 –15.0 –15.5 –14.5 –15.0 –15.5 Volts
+5V Supply +4.75 +5.0 +5.25 +4.75 +5.0 +5.25 +4.75 +5.0 +5.25 Volts
Power Supply Currents
+15V Supply —+43 +65 —+43 +65 —+43 +65 mA
–15V Supply —–25 –45 —–25 –45 —–25 –45 mA
+5V Supply —+71 +80 —+71 +80 —+71 +80 mA
Power Dissipation —1.6 1.95 —1.6 1.95 —1.6 1.95 Watts
Power Supply Rejection — — ±0.02 — — ±0.02 — — ±0.02 %FSR/%V
POWER REQUIREMENTS, ±12V
Power Supply Ranges
+12V Supply +11.5 +12.0 +12.5 +11.5 +12.0 +12.5 +11.5 +12.0 +12.5 Volts
–12V Supply –11.5 –12.0 –12.5 –11.5 –12.0 –12.5 –11.5 –12.0 –12.5 Volts
+5V Supply +4.75 +5.0 +5.25 +4.75 +5.0 +5.25 +4.75 +5.0 +5.25 Volts
Power Supply Currents
+12V Supply —+42 +65 —+42 +65 —+42 +65 mA
–12V Supply —–25 –45 —–25 –45 —–25 –45 mA
+5V Supply —+71 +80 —+71 +80 —+71 +80 mA
Power Dissipation —1.4 1.65 —1.4 1.65 —1.4 1.65 Watts
Power Supply Rejection — — ±0.02 — — ±0.02 — — ±0.02 %FSR/%V
6.02
(SNR + Distortion) – 1.76 + 20 log Full Scale Amplitude
Actual Input Amplitude
➃Effective bits is equal to:
➄This is the time required before the A/D output data is valid after the analog input
is back within the specified range.
Footnotes:
➀All power supplies must be on before applying a start convert pulse. All supplies
and the clock (START CONVERT) must be present during warmup periods. The
device must be continuously converting during this time. There is a slight
degradation in performance when using ±12V supplies.
➁See Ordering Information for 0 to +10V input range. Contact DATEL for
availability of other input voltage ranges.
➂A 1MHz clock with a 200ns wide start convert pulse is used for all production
testing. For applications requiring less than a 1MHz sampling rate, wider start
convert pulses can be used. See Timing Diagram for more details.
TECHNICAL NOTES
1. Obtaining fully specified performance from the ADS-927
requires careful attention to pc-card layout and power
supply decoupling. The device’s analog and digital ground
systems are connected to each other internally. For optimal
performance, tie all ground pins (14, 19 and 23) directly to
a large analog ground plane below the package.
Bypass all power supplies and the REFERENCE OUTPUT
(pin 21) to ground with 4.7µF tantalum capacitors in parallel
with 0.1µF ceramic capacitors. Locate the bypass capaci-
tors as close to the unit as possible. If the user-installed
offset and gain adjusting circuit in Figure 2 is used, also
locate it as close to the ADS-927 as possible.
2. The ADS-927 achieves its specified accuracies without the
need for external calibration. If required, the device's small
initial offset and gain errors can be reduced to zero using
the input circuit of Figure 2. When using this circuit, or any
similar offset and gain-calibration hardware, make adjust-
ments following warmup. To avoid interaction, always
adjust offset before gain.
3. When operating the ADS-927 from ±12V supplies, do not
drive external circuitry with the REFERENCE OUTPUT. The
reference's accuracy and drift specifications may not be
met, and loading the circuit may cause accuracy errors
within the converter.
4. Applying a start convert pulse while a conversion is in
progress (EOC = logic "1") initiates a new and inaccurate
conversion cycle. Data for the interrupted and subsequent
conversions will be invalid.
® ®
ADS-927
4
CALIBRATION PROCEDURE
(Refer to Figures 2 and 3)
Any offset and/or gain calibration procedures should not be
implemented until devices are fully warmed up. To avoid
interaction, offset must be adjusted before gain. The ranges of
adjustment for the circuit of Figure 2 are guaranteed to
compensate for the ADS-927's initial accuracy errors and may
not be able to compensate for additional system errors.
All fixed resistors in Figure 2 should be metal-film types, and
multiturn potentiometers should have TCR’s of 100ppm/°C or
less to minimize drift with temperature.
A/D converters are calibrated by positioning their digital
outputs exactly on the transition point between two adjacent
digital output codes. This can be accomplished by connecting
LED's to the digital outputs and adjusting until certain LED's
"flicker" equally between on and off. Other approaches
employ digital comparators or microcontrollers to detect when
the outputs change from one code to the next.
For the ADS-927, offset adjusting is normally accomplished at
the point where the MSB is a 1 and all other output bits are 0's
and the LSB just changes from a 0 to a 1. This digital output
transition ideally occurs when the applied analog input is
+½LSB (+305µV).
Gain adjusting is accomplished when all bits are 1's and the
LSB just changes from a 1 to a 0. This transition ideally
occurs when the analog input is at +full scale minus 1½ LSB's
(+4.999085V).
Zero/Offset Adjust Procedure
1. Apply a train of pulses to the START CONVERT input
(pin 16) so the converter is continuously converting. If
using LED's on the outputs, a 200kHz conversion rate will
reduce flicker.
2. Apply +305µV to the ANALOG INPUT (pin 20).
3. Adjust the offset potentiometer until the output bits are
a 1 and all 0's and the LSB flickers between 0 and 1.
Gain Adjust Procedure
1. Apply +4.999085V to the ANALOG INPUT (pin 20).
2. Adjust the gain potentiometer until the output bits are all 1's
and the LSB flickers between 1 and 0.
INPUT VOLTAGE ZERO ADJUST GAIN ADJUST
RANGE +½ LSB +FS –1½ LSB
±5V +305µV +4.999085V
Table 1. Zero and Gain Adjust
OUTPUT CODING INPUT RANGE BIPOLAR
MSB LSB ±5V SCALE
11 1111 1111 1111 +4.99939 +FS –1 LSB
11 1000 0000 0000 +3.75000 +3/4 FS
11 0000 0000 0000 +2.50000 +1/2FS
10 0000 0000 0000 0.00000 0
01 0000 0000 0000 –2.50000 –1/2FS
00 1000 0000 0000 –3.75000 –3/4FS
00 0000 0000 0001 –4.99939 –FS +1 LSB
00 0000 0000 0000 –5.00000 –FS
Table 2. Output Coding
Figure 3. Typical ADS-927 Connection Diagram
Figure 2. ADS-927 Calibration Circuit
Coding is offset binary; 1LSB = 610µV.
To Pin 20
of ADS-927
–15V
SIGNAL
INPUT
GAIN
ADJUST
1.98kΩ
50Ω
+15V
2kΩ1.2MΩ20kΩ
–15V
+15V
ZERO/
OFFSET
ADJUST
13
ADS-927
14
20
16
18
17
12
11
10
9
8
7
6
5
4
3
2
1
15
BIT 1 (MSB)
BIT 2
BIT 3
BIT 4
BIT 5
BIT 6
BIT 7
BIT 8
BIT 9
BIT 10
BIT 11
BIT 12
BIT 13
BIT 14 (LSB)
EOC
ANALOG
INPUT
START
CONVERT
19, 23
22
24
0.1µF4.7µF
+5V
0.1µF
4.7µF
0.1µF
4.7µF +
+
–12V/–15V
+12V/+15V +
0.1µF +
4.7µF
21 +10V REF. OUT
DIGITAL
GROUND
0 to +10V
ANALOG
GROUND
® ® ADS-927
5
THERMAL REQUIREMENTS
All DATEL sampling A/D converters are fully characterized and
specified over operating temperature (case) ranges of
0 to +70°C and –55 to +125°C. All room-temperature
(TA = +25°C) production testing is performed without the use of
heat sinks or forced-air cooling. Thermal impedance figures
for each device are listed in their respective specification
tables.
These devices do not normally require heat sinks, however,
standard precautionary design and layout procedures should
be used to ensure devices do not overheat. The ground and
power planes beneath the package, as well as all pcb signal
runs to and from the device, should be as heavy as possible to
help conduct heat away from the package.
Electrically-insulating, thermally-conductive "pads" may be
installed underneath the package. Devices should be
soldered to boards rather than "socketed", and of course,
minimal air flow over the surface can greatly help reduce the
package temperature.
In more severe ambient conditions, the package/junction
temperature of a given device can be reduced dramatically
(typically 35%) by using one of DATEL's HS Series heat sinks.
See Ordering Information for the assigned part number. See
page 1-183 of the DATEL Data Acquisition Components
Catalog for more information on the HS Series. Request
DATEL Application Note AN-8, "Heat Sinks for DIP Data
Converters", or contact DATEL directly, for additional
information.
Figure 4. ADS-927 Timing Diagram
Notes: 1. fs = 1MHz.
2. The ADS-927 is a pulse-triggered device. Its internal operations
are triggered by both the rising and falling edges of the start
convert pulse. When sampling at 1MHz, the start pulse must be
between 175 and 225nsec wide. For lower sampling rates, wider
start pulses may be used, however, a minimum pulse width low of
50nsec must be maintained.
START
CONVERT
OUTPUT
DATA
INTERNAL S/H
NN + 1
Data (N – 1) Valid
Acquisition Time
10ns
typ.
Data N Valid (850ns min.)
EOC
Conversion Time
Invalid
Data
150ns max.
10ns typ.
390ns ±55ns
35ns max.
Hold
200ns
±25ns
610ns typ.
480ns ±20ns
70ns ±10ns
®®
ADS-927
6
Figure 5. ADS-927 Evaluation Board Schematic
ADS-926/927
1D
2D
3D
4D
5D
6D
7D
8D
CLK
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
OC
+5V
-15V
-15V
-15V
-15V
+15V
+15V
+15V
+15V
+5V
+5V
+5V
-15V
AGND
+15V
+10VREF
INPUT
AGND
B1
B2
STRTCONV
DGND
+5V
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B13
B14
EOC'
N/C
N/C
U5
SG1
U2
U4
U4
R1
R2
P1
C14
C11
C8
C9
C4
C6
C13
C12
C10
C2
C15
C1
C16
C3
C5
C7
U4
U4
P4
P3
U1
R5
R4
R3
P2
7
6
4
3
2
1
19
16
15
12
9
6
5
2
20
10
11
18
17
14
13
8
7
4
3
14
7
3
2
1
6
5
4
25
26
23
24
21
22
19
20
17
18
15
16
13
14
11
12
9
10
7
8
3
4
65
21
+
+
+
+
+
+
11
13
12
8
10
9
24
23
22
21
20
19
18
17
16
15
14
13 12
11
10
9
8
7
6
5
4
3
2
1
34
4
21
17
15
13
11
9
7
5
3
21
19
25
23
29
27
31
18
16
14
12
10
8
6
33
20
22
24
26
28
30
32
AD845
74ALS534
74LS86
74LS86
50
20K
2.2MF
2.2MF
2.2MF
2.2MF
2.2MF
2.2MF
0.1MF
0.1MF
0.1MF
15pF
0.1MF
0.1MF
0.1MF
0.1MF
0.1
MF
0.1MF
74LS86
74LS86
2K
0.1%
1.98K
.1%
1.2M 5%
ANALOG
INPUT
START
CONVERT
OFFSET
ADJ
GAIN
ADJ
COG
+
-
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
7Q
1D
2D
3D
4D
5D
6D
7D
8D
CLK
+5V
C17
20
11
18
17
14
13
8
7
4
3
74ALS534
0.1MF
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
OC 1
19
16
15
12
9
6
5
2
10
7Q
U3
® ® ADS-927
7
Figure 6. ADS-927 FFT Analysis
Figure 7. ADS-927 Histogram and Differential Nonlinearity
0
Number of Occurrences
Digital Output Code
0
16,384
+0.71
0
–0.49 16,384
DNL (LSB's)
Digital Output Code
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
–150
Frequency (kHz)
(fs = 1MHz, fin = 480kHz, Vin = –0.5dB, 16,384-point FFT)
Amplitude Relative to Full Scale (dB)
0 50 100 150 200 250 300 350 400 450 500
® ®
ADS-927
MECHANICAL DIMENSIONS INCHES (mm)
ORDERING INFORMATION
MODEL OPERATING ANALOG
NUMBER TEMP. RANGE INPUT
ADS-927MC 0 to +70°C Bipolar (±5V)
ADS-927MM –55 to +125°C Bipolar (±5V)
ADS-927/883 –55 to +125°C Bipolar (±5V)
ADS-927GC 0 to +70°C Bipolar (±5V)
ADS-927GM –55 to +125°C Bipolar (±5V)
ADS-917MC 0 to +70°C Unipolar (0 to +10V)*
ADS-917MM –55 to +125°C Unipolar (0 to +10V)*
ADS-917GC 0 to +70°C Unipolar (0 to +10V)*
ADS-917GM –55 to +125°C Unipolar (0 to +10V)*
24-Pin
Surface Mount
Versions
ADS-927GC
ADS-927GM
ADS-917GC
ADS-917GM
0.200 MAX.
(5.080)
0.235 MAX.
(5.969)
0.600 ±0.010
(15.240)
0.80 MAX.
(20.32)
0.100 TYP.
(2.540)
0.100
(2.540)
0.018 ±0.002
(0.457)
0.100
(2.540)
0.040
(1.016)
1.31 MAX.
(33.27)
1 12
13
24
1.100
(27.940)
0.190 MAX.
(4.826)
0.010
(0.254)
+0.002
–0.001
SEATING
PLANE
0.025
(0.635)
Dimension Tolerances (unless otherwise indicated):
2 place decimal (.XX) ±0.010 (±0.254)
3 place decimal (.XXX) ±0.005 (±0.127)
Lead Material: Kovar alloy
Lead Finish: 50 microinches (minimum) gold plating
over 100 microinches (nominal) nickel plating
PIN 1 INDEX
ACCESSORIES
ADS-B926/927 Evaluation Board (without ADS-927)
HS-24 Heat Sinks for all ADS-917/927 DDIP models
0.80 MAX.
(20.32)
0.015
(0.381)
MAX. radius
for any pin
1.31 MAX.
(33.02)
0.100 TYP.
(2.540)
0.100
(2.540)
0.190 MAX.
(4.826)
0.040
(1.016)
0.020 TYP.
(0.508)
0.020
(0.508)
24 13
121
PIN 1
INDEX 0.130 TYP.
(3.302)
Dimension Tolerances
(unless otherwise indicated):
2 place decimal (.XX) ±0.010 (±0.254)
3 place decimal (.XXX) ±0.005 (±0.127)
Lead Material: Kovar alloy
Lead Finish: 50 microinches (minimum) gold plating
over 100 microinches (nominal) nickel plating
0.060 TYP.
(1.524)
0.010 TYP.
(0.254)
® ®
DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein
do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.
ISO 9001
ISO
9001
REGISTERED
DS-0246E 11/96
24-Pin DDIP
Versions
ADS-927MC
ADS-927MM
ADS-927/883
ADS-917MC
ADS-917MM
Receptacles for PC board mounting can be ordered through
AMP Inc. Part #3-331272-8 (Component Lead Socket), 24 required.
For MIL-STD-883 product specifications, contact DATEL.
* For information, see ADS-917 data sheet.
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
Internet: www.datel.com E-mail:sales@datel.com
Data Sheet Fax Back: (508) 261-2857
DATEL (UK) LTD. Tadley, England Tel: (01256)-880444
DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 1-34-60-01-01
DATEL GmbH München, Germany Tel: 89-544334-0
DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-354-2025
