INA126
INA2126
®
INA126
INA126
INA2126
INA2126
INA2126
MicroPOWER INSTRUMENTATION AMPLIFIER
Single and Dual Versions
FEATURES
DESCRIPTION
● LOW QUIESCENT CURRENT: 175µA/chan.
● WIDE SUPPLY RANGE: ±1.35V to ±18V
● LOW OFFSET VOLTAGE: 250µV max
● LOW OFFSET DRIFT: 3µV/°C max
● LOW NOISE: 35nV/√Hz
The INA126 and INA2126 are precision instrumentation
amplifiers for accurate, low noise differential signal acquisi-
tion. Their two-op-amp design provides excellent perfor-
mance with very low quiescent current (175µA/chan.). This,
combined with wide operating voltage range of ±1.35V to
±18V, makes them ideal for portable instrumentation and data
acquisition systems.
● LOW INPUT BIAS CURRENT: 25nA max
Gain can be set from 5V/V to 10000V/V with a single
external resistor. Laser trimmed input circuitry provides
low offset voltage (250µV max), low offset voltage drift
(3µV/°C max) and excellent common-mode rejection.
● 8-PIN DIP, SO-8, MSOP-8 SURFACE- MOUNT
DUAL: 16-Pin DIP, SO-16, SSOP-16
APPLICATIONS
● INDUSTRIAL SENSOR AMPLIFIER:
Single version package options include 8-pin plastic DIP,
SO-8 surface mount, and fine-pitch MSOP-8 surface-mount.
Dual version is available in the space-saving SSOP-16 fine-
pitch surface mount, SO-16, and 16-pin DIP. All are speci-
fied for the –40°C to +85°C industrial temperature range.
Bridge, RTD, Thermocouple
● PHYSIOLOGICAL AMPLIFIER:
ECG, EEG, EMG
V+
● MULTI-CHANNEL DATA ACQUISITION
INA2126
9
6
2
4
+
● PORTABLE, BATTERY OPERATED SYSTEMS
VIN
+
–
V
O = (VIN – VIN) G
80k
G = 5 +
RG
40kΩ
7
V+
7
10kΩ
RG
INA126
3
+
3
1
VIN
10kΩ
40kΩ
6
+
–
VO = (VIN – VIN) G
8
–
VIN
80k
40kΩ
10kΩ
G = 5 +
5
RG
15
13
+
VIN
10kΩ
11
+
–
RG
VO = (VIN – VIN) G
80k
G = 5 +
RG
40kΩ
10kΩ
10
12
1
2
RG
–
VIN
14
10kΩ
40kΩ
40kΩ
5
–
16
8
VIN
4
V–
V–
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
©1996 Burr-Brown Corporation
PDS-1365C
Printed in U.S.A. September, 1997