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Burr-Brown Corporation

SDM872 Datasheet Preview

SDM872 Datasheet

16 Single Ended/8 Differential Input 12-BIT DATA ACQUISITION SYSTEMS

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® SDM862
FPFOPO 46%
43%
SDM863
SDM872
SDM873
16 Single Ended/8 Differential Input
12-BIT DATA ACQUISITION SYSTEMS
FEATURES
q COMPLETE 12-BIT DATA ACQUISITION
SYSTEM IN A MINIATURE PACKAGE
q INPUT RANGES SELECTABLE FOR
UNIPOLAR OR BIPOLAR OPERATION
q THROUGHPUT RATES: 862/3 872/3
8-BIT ACCURACY: 45kHz 67kHz
12-BIT ACCURACY: 33kHz 50kHz
q SELECTABLE GAINS OF 1, 10, AND 100
q FULL MICROPROCESSOR COMPATIBLE
INTERFACE
q GUARANTEED NO MISSING CODES OVER
TEMPERATURE
q SURFACE-MOUNT OR PIN GRID ARRAY
PACKAGE OPTIONS
q HIGH RELIABILITY SCREENED VERSIONS
AVAILABLE
q FULL SPECIFICATION OVER THREE
TEMPERATURE RANGES:
0 to +70°C, –25 to +85°C, –55 to +125°C
q EVERY UNIT SUPPLIED WITH
ELECTRICAL TEST DATA
APPLICATIONS
q INDUSTRIAL PROCESS MONITORING
q AIRBORNE SYSTEMS MONITORING
q ENGINE MONITORING
q POWER PLANT MONITORING
q SECURITY SYSTEMS MONITORING
q AUTOMATIC TEST EQUIPMENT
DESCRIPTION
16 Single-Ended Inputs: SDM862
8 Differential Inputs: SDM863
33kHz Throughput Rate: SDM862
50kHz Throughput Rate: SDM872
SDM872
SDM873
SDM863
SDM873
The SDM components are complete, pin-compatible,
data acquisition systems housed in a hermetically sealed
1"-square leadless chip carrier or a 1.1"-square pin grid
array. The small package outlines and low power con-
sumption provide an ideal data acquisition solution
when space is at a premium.
The devices comprise of an input multiplexer, instru-
mentation amplifier with selectable gains, sample/hold
amplifier and A/D converter with microprocessor inter-
face and three-state buffers.
The SDM family will accept unipolar or bipolar voltage
inputs in the range 0 to +10V, ±5V and ±10V. For low-
level signals, jumper-selectable gains of 10 or 100 can
be applied. The number of input channels can be ex-
panded by the addition of multiplexers. System integra-
tion is simplified by the microprocessor interface and
the facility of the sample/hold amplifier being con-
trolled directly by the A/D converter.
ANALOG
8 CH
16 CH
8 CH
MUX
INA S/H
ADC
DIGITAL
12 Bits
862/872 863/873
International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1988 Burr-Brown Corporation
PDS-686F
Printed in U.S.A. August, 1993




Burr-Brown Corporation

SDM872 Datasheet Preview

SDM872 Datasheet

16 Single Ended/8 Differential Input 12-BIT DATA ACQUISITION SYSTEMS

No Preview Available !

CH0
CH
15
CH0
+
CH7
CH0
CH7
16 Single-Ended
or
8 Differential
Input
Multiplexer
+ ––
+
Inst
Amp
S/H
Amp
*(Output MUX Minus)
Only on SDM863/873
12-Bit
A/D
Converter
Digital
Data
Outputs
SPECIFICATIONS
ELECTRICAL
At +25°C, VCC = ±15V, VDD = 5V, external sample/hold capacitor of 4700pF. All grades are burned-in at +125°C for 48 hours min.
PARAMETER
RESOLUTION
INPUT
ANALOG
Voltage Ranges: Bipolar
Unipolar
Input Impedance: On Channel
Off Channel
Input Capacitance: On Channel
Off Channel
CMRR (20VDC to 1kHz)
Crosstalk (20Vp-p, 1kHz) (1)
Feedthrough (at 1kHz) (1)
Offset (channel to channel) G = 1 (2)
Input Bias Current/Channel
Input Voltage Range (3)
DIGITAL (7, 8)
MUX Input Channel Select: Logic ‘1’
Logic ‘0’
MUX Input: Logic High
Logic Low
S/H Command: Logic ‘1’
Logic ‘0’
ADC Section: Logic ‘1’
Logic ‘0’
TRANSFER CHARACTERISTICS
ACCURACY
Integral Linearity (4)
Differential Linearity (4)
No Missing Codes
Gain Error (5): G = 1
G = 100
Unipolar Offset Error (5)
Bipolar Offset Error (5)
Noise Error
(Measured at S/H Output) G = 1
Droop Rate
Temperature Coefficients:
Unipolar Offset
Bipolar Offset
Full-Scale Calibration
SDM862/863/872/873 J, A, R
MIN
TYP
MAX
12
SDM862/863/872/873 K, B, S
MIN TYP MAX
*
±5, ±10
0-10
1010
*
1010
*
20 *
20 *
80 85
**
–85 –80
**
–85 –80
**
30 100
**
15
**
+10 +11
**
–10 –15
**
5 30
**
5 30
**
4.0 *
0.8 *
0.2 *
5 30
**
10 *
10 *
±0.024
±0.024
Over Operating Temperature Range
0.5
0.9
16
50
0.5 1
50 500
20
30
60
*
*
*
*
±0.012
*
*
*
*
*
15
25
35
UNITS
Bits
V
V
pF
pF
dB
dB
dB
µV
nA
V
V
µA
µA
V
V
nA
µA
µA
µA
%FSR
%FSR
%
%
mV
mV
mVp-p
µV/ms
ppm of FSR/°C
ppm of FSR/°C
ppm of FSR/°C
®
SDM862/863/872/873
2


Part Number SDM872
Description 16 Single Ended/8 Differential Input 12-BIT DATA ACQUISITION SYSTEMS
Maker Burr-Brown Corporation
Total Page 27 Pages
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1 SDM872 16 Single Ended/8 Differential Input 12-BIT DATA ACQUISITION SYSTEMS
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2 SDM873 16 Single Ended/8 Differential Input 12-BIT DATA ACQUISITION SYSTEMS
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