INA
332
INA
233
2
廬
INA332
INA2332
SBOS216A 鈥?DECEMBER 2001
Low-Power, Single-Supply, CMOS
INSTRUMENTATION AMPLIFIERS
FEATURES
q
DESIGNED FOR LOW COST
q
HIGH GAIN ACCURACY: G = 5, 0.07%, 2ppm/
擄
C
q
GAIN SET WITH EXT. RESISTORS FOR > 5V/V
q
HIGH CMRR: 73dB DC, 50dB at 45kHz
q
LOW BIAS CURRENT: 0.5pA
q
BANDWIDTH, SLEW RATE: 2.0MHz, 5V/
碌
s
q
RAIL-TO-RAIL OUTPUT SWING: (V+) 鈥?0.02V
q
WIDE TEMPERATURE RANGE: 鈥?5
擄
C to +125
擄
C
q
LOW QUIESCENT CURRENT: 490
碌
A max/chan
q
SHUT DOWN: 0.01
碌
A
q
MSOP-8 SINGLE AND TSSOP-14 DUAL PACKAGES
APPLICATIONS
q
INDUSTRIAL SENSOR AMPLIFIERS:
Bridge, RTD, Thermocouple, Position
q
PHYSIOLOGICAL AMPLIFIERS: ECG, EEG, EMG
q
A/D CONVERTER SIGNAL CONDITIONING
q
DIFFERENTIAL LINE RECEIVERS WITH GAIN
q
FIELD UTILITY METERS
q
PCMCIA CARDS
q
AUDIO AMPLIFIERS
q
COMMUNICATION SYSTEMS
q
TEST EQUIPMENT
q
AUTOMOTIVE INSTRUMENTATION
The INA332 rejects line noise and its harmonics because
common-mode error remains low even at higher frequencies.
High bandwidth and slew rate make the INA332 ideal for
directly driving sampling Analog-to-Digital (A/D) converters
as well as general-purpose applications.
With high precision, low cost, and small packages, the
INA332 outperforms discrete designs.
Additionally, because they are specified for wide temperature
range of 鈥?5擄C to +125擄C and operating range of 鈥?5擄C to
+150擄C, the INA331 family can be used in demanding
industrial and automotive environments.
DESCRIPTION
The INA332 and INA2332 are rail-to-rail output, low-power
CMOS instrumentation amplifiers that offer wide range, single-
supply, and bipolar-supply operation. Using a special manu-
facturing flow, the INA332 family provides the lowest cost
available, while still achieving low-noise amplification of dif-
ferential signals with low quiescent current of 415碌A(chǔ) (drop-
ping to 0.01碌A(chǔ) when shutdown). Returning to normal opera-
tion within microseconds, this INA can be used for battery or
multichannel applications.
Configured internally in a gain of 5V/V, the INA332 offers
flexibility in higher gains by choosing external resistors.
R
1
R
2
R
G
INA2332
INA332
40k鈩?/div>
Ch A
G = 5 + (5R
2
/R
1
)
40k鈩?/div>
V
REF
10k鈩?/div>
A1
V
IN
鈥?/div>
V
IN
+
A2
10k鈩?/div>
A3
V
OUT
Ch B
V+
V鈥?/div>
Shutdown
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 漏 2001, Texas Instruments Incorporated
www.ti.com
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