INA2126E Burr-Brown Corporation, INA2126E Datasheet

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INA2126E

Manufacturer Part Number
INA2126E
Description
MicroPOWER INSTRUMENTATION AMPLIFIER Single and Dual Versions
Manufacturer
Burr-Brown Corporation
Datasheet

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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
IN
IN
+
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
APPLICATIONS
©
FEATURES
1996 Burr-Brown Corporation
R
LOW QUIESCENT CURRENT: 175 A/chan.
WIDE SUPPLY RANGE: 1.35V to 18V
LOW OFFSET VOLTAGE: 250 V max
LOW OFFSET DRIFT: 3 V/ C max
LOW NOISE: 35nV/ Hz
LOW INPUT BIAS CURRENT: 25nA max
8-PIN DIP, SO-8, MSOP-8 SURFACE- MOUNT
DUAL: 16-Pin DIP, SO-16, SSOP-16
INDUSTRIAL SENSOR AMPLIFIER:
PHYSIOLOGICAL AMPLIFIER:
MULTI-CHANNEL DATA ACQUISITION
PORTABLE, BATTERY OPERATED SYSTEMS
Micro
G
Bridge, RTD, Thermocouple
ECG, EEG, EMG
3
8
1
2
POWER INSTRUMENTATION AMPLIFIER
10k
V+
V–
7
4
40k
10k
40k
INA126
®
Single and Dual Versions
6
5
V
O
= (V
G = 5 +
IN
+
– V
IN
80k
) G
R
G
PDS-1365C
V
V
V
V
DESCRIPTION
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 (175 A/chan.). This,
combined with wide operating voltage range of 1.35V to
acquisition systems.
Gain can be set from 5V/V to 10000V/V with a single
external resistor. Laser trimmed input circuitry provides
low offset voltage (250 V max), low offset voltage drift
(3 V/ C max) and excellent common-mode rejection.
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.
+
IN
IN
+
IN
IN
18V, makes them ideal for portable instrumentation and data
R
R
V–
G
G
16
15
13
14
8
2
4
3
1
10k
10k
10k
40k
40k
40k
10k
40k
INA2126
Printed in U.S.A. September, 1997
10
9
6
7
5
11
12
INA2126
V+
INA126
V
V
O
O
= (V
= (V
G = 5 +
G = 5 +
IN
+
IN
+
– V
– V
IN
IN
80k
) G
80k
) G
R
R
G
G

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INA2126E Summary of contents

Page 1

... 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 DESCRIPTION The INA126 and INA2126 are precision instrumentation amplifiers for accurate, low noise differential signal acquisi- tion ...

Page 2

... SO-16 (dual) SSOP-16 (dual) Specification same as INA126P, INA126U, INA126E; INA2126P, INA2126U, INA2126E. The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice ...

Page 3

... INA126PA Rails INA126P Rails INA126UA Rails or Reel INA126U Rails or Reel INA126EA-250 Reel Only INA126EA-2500 INA126E-250 Reel Only INA126E-2500 INA2126PA Rails INA2126P Rails INA2126UA Rails INA2126U Rails INA2126EA-250 Reel Only INA2126EA-2500 INA2126E-250 Reel Only INA2126E-2500 INA126, INA2126 " " " " ® ...

Page 4

TYPICAL PERFORMANCE CURVES +25 C and V = 15V, unless otherwise noted GAIN vs FREQUENCY 1000 100 ...

Page 5

TYPICAL PERFORMANCE CURVES +25 C and V = 15V, unless otherwise noted INPUT-REFERRED NOISE vs FREQUENCY 100 Voltage Noise 10 Current Noise 100 Frequency (Hz) INPUT-REFERRED OFFSET VOLTAGE WARM- ...

Page 6

TYPICAL PERFORMANCE CURVES +25 C and V = 15V, unless otherwise noted SMALL-SIGNAL RESPONSE s/div LARGE-SIGNAL RESPONSE s/div ® INA126, INA2126 (CONT) CHANNEL SEPARATION vs FREQUENCY, RTI ...

Page 7

APPLICATION INFORMATION Figure 1 shows the basic connections required for operation of the INA126. Applications with noisy or high impedance power supplies may require decoupling capacitors close to the device pins as shown. The output is referred to the output ...

Page 8

INPUT BIAS CURRENT RETURN The input impedance of the INA126/2126 is extremely 9 high—approximately 10 . However, a path must be pro- vided for the input bias current of both inputs. This input bias current is typically –10nA (current flows ...

Page 9

Bridge R G Sensor 1 2.5V – similar instrumentation amplifier, INA125, provides an internal reference voltage for sensor excitation and/or A/D converter reference. FIGURE 4. Bridge Signal Acquisition—Single 5V Supply ...

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