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PDF INA2141UA Data sheet ( Hoja de datos )

Número de pieza INA2141UA
Descripción Dual/ Low Power/ G = 10/ 100 INSTRUMENTATION AMPLIFIER
Fabricantes Burr-Brown Corporation 
Logotipo Burr-Brown Corporation Logotipo



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® INA2141
INA2141
INA2141
Dual, Low Power, G = 10, 100
INSTRUMENTATION AMPLIFIER
FEATURES
q LOW OFFSET VOLTAGE: 50µV max
q LOW DRIFT: 0.5µV/°C max
q EXCELLENT GAIN ACCURACY:
±0.05% max at G = 10
q LOW INPUT BIAS CURRENT: 5nA max
q HIGH CMR: 117dB min (G = 100)
q INPUTS PROTECTED TO ±40V
q WIDE SUPPLY RANGE: ±2.25V to ±18V
q LOW QUIESCENT CURRENT: 750µA/IA
q 16-PIN PLASTIC DIP, SOL-16
APPLICATIONS
q SENSOR AMPLIFIER
THERMOCOUPLE, RTD, BRIDGE
q MEDICAL INSTRUMENTATION
q MULTIPLE CHANNEL SYSTEMS
DESCRIPTION
The INA2141 is a low power, dual instrumentation
amplifier offering excellent accuracy. Its versatile
3-op amp design and small size make it ideal for a
wide range of applications. Current-feedback input
circuitry provides wide bandwidth even at high gain
(200kHz at G = 100).
Simple pin connections set an accurate gain of 10 or
100V/V without external resistors. Internal input pro-
tection can withstand up to ±40V without damage.
The INA2141 is laser trimmed for very low offset
voltage (50µV), drift (0.5µV/°C) and high common-
mode rejection (117dB at G = 100). It operates with
power supplies as low as ±2.25V, and quiescent cur-
rent is only 750µA per amplifier—ideal for battery
operated systems.
Packages are 16-pin plastic DIP, and SOL-16
surface-mount, specified for the –40°C to +85°C
temperature range.
VIN–A
G = 10
or
100
VIN+A
1 Over-Voltage
Protection
3 252
5050
4 252
2 Over-Voltage
Protection
V+
9
A1A
25k
INA2141
40k
40k
A3A
25k
A2A
40k
40k
7
6 VOA
5 Ref
VIN–B 16
G = 10
or
100
14
13
Over-Voltage
Protection
252
5050
252
+
VINB
15
Over-Voltage
Protection
A1B
25k
40k
25k
A2B
40k
8
V–
40k
A3B
40k
10
11 VOB
12 Ref
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
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1995 Burr-Brown Corporation
PDS-1244C
Printed in U.S.A. January, 1996

1 page




INA2141UA pdf
TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25°C, and VS = ±15V, unless otherwise noted.
CROSSTALK vs FREQUENCY
140
G = 100V/V
120
G = 10V/V
100
80
60
40
20
0
10 100 1k 10k 100k
Frequency (Hz)
1M
INPUT- REFERRED NOISE vs FREQUENCY
1k
100
100
10
1
1
G = 10V/V
G = 100
Current Noise
10 100 1k
Frequency (Hz)
10
1
0.1
10k
QUIESCENT CURRENT and SLEW RATE
vs TEMPERATURE
1.8 6
1.7 5
1.6
Slew Rate
4
1.5 3
IQ
1.4 2
1.3
–75 –50 –25
0 25 50
Temperature (°C)
1
75 100 125
INPUT OVER-VOLTAGE V/I CHARACTERISTICS
5
4
3 Flat region represents
2 normal linear operation.
1
0
G = 100V/V
G = 10V/V
–1
G = 10V/V
–2
–3 G = 100V/V
–4
–5
–50 –40 –30 –20 –10
+15V
1/2
INA2141
VIN
IIN –15V
0 10 20 30 40
50
Input Voltage (V)
10
8
6
4
2
0
–2
–4
–6
–8
–10
0
OFFSET VOLTAGE WARM-UP
G = 100V/V
10 20 30 40 50
Time (ms)
INPUT BIAS CURRENT vs TEMPERATURE
2
IB
1
IOS
0
Typical IB and IOS
–1 Range ±2nA at 25°C
–2
–75 –50 –25 0 25 50 75 100 125
Temperature (°C)
®
5 INA2141

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