INA116P Burr-Brown Corporation, INA116P Datasheet

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INA116P

Manufacturer Part Number
INA116P
Description
Ultra Low Input Bias Current INSTRUMENTATION AMPLIFIER
Manufacturer
Burr-Brown Corporation
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
INA116P
Manufacturer:
BB
Quantity:
20 000
Part Number:
INA116PA
Manufacturer:
BB
Quantity:
20 000
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
FEATURES
APPLICATIONS
Difet
©
1994 Burr-Brown Corporation
LOW INPUT BIAS CURRENT: 3fA typ
BUFFERED GUARD DRIVE PINS
LOW OFFSET VOLTAGE: 2mV max
HIGH COMMON-MODE REJECTION:
84dB (G = 10)
LOW QUIESCENT CURRENT: 1mA
INPUT OVER-VOLTAGE PROTECTION: 40V
LABORATORY INSTRUMENTATION
pH MEASUREMENT
ION–SPECIFIC PROBES
LEAKAGE CURRENT MEASUREMENT
®
; Burr-Brown Corporation
Guard
Guard
Guard
Guard
V
V
IN
IN
+
INSTRUMENTATION AMPLIFIER
R
G
16
Ultra Low Input Bias Current
2
3
4
1
5
6
7
®
Over-Voltage
Over-Voltage
Protection
Protection
+1
+1
A
A
1
2
PDS-1242B
25k
25k
DESCRIPTION
The INA116 is a complete monolithic FET-input instru-
mentation amplifier with extremely low input bias
current. Difet
yield input bias currents of 3fA at 25 C, and only 25fA
at 85 C. Its 3-op amp topology allows gains to be set
from 1 to 1000 by connecting a single external resistor.
Guard pins adjacent to both input connections can be
used to drive circuit board and input cable guards to
maintain extremely low input bias current.
The INA116 is available in 16-pin plastic DIP and SOL-16
surface-mount packages, specified for the –40 C to +85 C
temperature range.
60k
60k
V+
V–
13
8
®
inputs and special guarding techniques
60k
A
60k
3
INA116
11
9
G = 1 +
V
Ref
O
Printed in U.S.A. May, 1995
50k
R
INA116
G

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INA116P 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 © 1994 Burr-Brown Corporation DESCRIPTION The INA116 is a complete monolithic FET-input instru- mentation amplifier with extremely low input bias ® ...

Page 2

... G = 1000 Output Overload Recovery 50% Overdrive POWER SUPPLY Voltage Range Current TEMPERATURE RANGE Specification Operating JA Specification same as INA116P NOTE: (1) Guaranteed by wafer test. (2) Temperature coefficient of the “50k ” term in the gain equation. ® INA116 INA116P, U MIN TYP MAX 0.5 0.5/G 2 2/G See Typical Curve MAX 10 15/G ...

Page 3

... V specifications PACKAGE INFORMATION 9 Ref PRODUCT INA116PA INA116P INA116UA INA116U NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. 3 PACKAGE DRAWING (1) PACKAGE NUMBER 16-Pin Plastic DIP 180 ...

Page 4

TYPICAL PERFORMANCE CURVES + 15V 10k unless otherwise noted GAIN vs FREQUENCY 1000 100 ...

Page 5

TYPICAL PERFORMANCE CURVES + 15V 10k unless otherwise noted INPUT COMMON-MODE RANGE vs OUTPUT VOLTAGE +15V – V D/2 + INA116 ...

Page 6

TYPICAL PERFORMANCE CURVES + 15V 10k unless otherwise noted MAXIMUM OUTPUT VOLTAGE vs FREQUENCY 10, 100 1000 ...

Page 7

APPLICATIONS INFORMATION Figure 1 shows the connections required for basic operation of the INA116. Applications with noisy or high impedance power supplies may require decoupling capacitors close to the supply pins as shown. The output is referred to the output ...

Page 8

INA116 Ref V IN OPA131 ±10mV Adjustment Range NOTE: (1) For wider trim range required in high gains, scale resistor values larger FIGURE 2. Optional Trimming of Output Offset Voltage. INPUT BIAS ...

Page 9

INPUT CONNECTIONS Some applications must make high impedance input connec- tions to external sensors or input connectors. To assure low leakage, the input should be guarded all the way to the signal source—see Figure 5. Coaxial cable can be used ...

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