INA111_07 BURR-BROWN [Burr-Brown Corporation], INA111_07 Datasheet

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INA111_07

Manufacturer Part Number
INA111_07
Description
High Speed FET-Input INSTRUMENTATION AMPLIFIER
Manufacturer
BURR-BROWN [Burr-Brown Corporation]
Datasheet
SBOS015
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
©
1992 Burr-Brown Corporation
FET INPUT: I
HIGH SPEED: T
LOW OFFSET VOLTAGE: 500 V max
LOW OFFSET VOLTAGE DRIFT:
5 V/ C max
HIGH COMMON-MODE REJECTION:
106dB min
8-PIN PLASTIC DIP, SOL-16 SOIC
MEDICAL INSTRUMENTATION
DATA ACQUISITION
B
INSTRUMENTATION AMPLIFIER
V
V
= 20pA max
IN
IN
+
S
R
= 4 s (G = 100, 0.01%)
G
(15)
®
(4)
(2)
(5)
2
1
8
3
High Speed FET-Input
A
A
1
2
25k
25k
DIP
7
4
10k
10k
V+
V–
(7)
(13)
PDS-1143E
1
(SOIC)
DESCRIPTION
The INA111 is a high speed, FET-input instrumenta-
tion amplifier offering excellent performance.
The INA111 uses a current-feedback topology provid-
ing extended bandwidth (2MHz at G = 10) and fast
settling time (4 s to 0.01% at G = 100). A single
external resistor sets any gain from 1 to over 1000.
Offset voltage and drift are laser trimmed for excellent
DC accuracy. The INA111’s FET inputs reduce input
bias current to under 20pA, simplifying input filtering
and limiting circuitry.
The INA111 is available in 8-pin plastic DIP, and
SOL-16 surface-mount packages, specified for the
–40 C to +85 C temperature range.
A
10k
10k
3
INA111
(12)
(11)
(10)
6
5
Feedback
Ref
DIP Connected
V
O
Internally
G = 1 +
Printed in U.S.A. March, 1998
INA111
50k
R
G
INA111
®

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INA111_07 Summary of contents

Page 1

INSTRUMENTATION AMPLIFIER FEATURES FET INPUT HIGH SPEED: T LOW OFFSET VOLTAGE: 500 V max LOW OFFSET VOLTAGE DRIFT max HIGH COMMON-MODE REJECTION: 106dB min 8-PIN PLASTIC DIP, SOL-16 SOIC APPLICATIONS MEDICAL INSTRUMENTATION DATA ACQUISITION V ...

Page 2

SPECIFICATIONS ELECTRICAL + 15V unless otherwise noted PARAMETER CONDITIONS INPUT Offset Voltage, RTI Initial Temperature ...

Page 3

PIN CONFIGURATIONS Top View – V– Top View – V– ...

Page 4

TYPICAL PERFORMANCE CURVES + 15V, unless otherwise noted GAIN vs FREQUENCY 10k 100 100 0.1 1k 10k 100k ...

Page 5

TYPICAL PERFORMANCE CURVES + 15V, unless otherwise noted OFFSET VOLTAGE WARM-UP vs TIME – –50 – Time From Power ...

Page 6

TYPICAL PERFORMANCE CURVES + 15V, unless otherwise noted QUIESCENT CURRENT vs TEMPERATURE 3.5 3.4 3.3 3.2 3.1 3.0 –75 –50 – Temperature (°C) LARGE SIGNAL RESPONSE 100 ...

Page 7

APPLICATION INFORMATION Figure 1 shows the basic connections required for operation of the INA111. 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

The INA111 exhibits approximately 6dB rise in gain at 2MHz in unity gain. This is a result of its current-feedback topology and is not an indication of instability. Unlike an op amp with poor phase margin, the rise in response ...

Page 9

A combination of common-mode and differential input voltage can cause the output shows the output voltage swing of A terms of a common-mode and differential input voltages. For applications where input common-mode range must ...

Page 10

This degrades common-mode rejection. The differential input capacitor reduces the bandwidth and mitigates the effects of 3 mismatch in C and C . ...

Page 11

V R INA111 Ref C 1 0.1µF OPA602 FIGURE 11. AC-Coupled Instrumentation Amplifier. – NOTE: Driving the shield minimizes CMR degradation due to unequally distributed capacitance on the input line. The ...

Page 12

PACKAGING INFORMATION (1) Orderable Device Status INA111AP ACTIVE INA111APG4 ACTIVE INA111AU ACTIVE INA111AU/1K ACTIVE INA111AU/1KE4 ACTIVE INA111AU/1KG4 ACTIVE INA111AUE4 ACTIVE INA111BP ACTIVE INA111BPG4 ACTIVE INA111BU ACTIVE INA111BUE4 ACTIVE (1) The marketing status values are defined as follows: ACTIVE: Product ...

Page 13

Customer on an annual basis. PACKAGE OPTION ADDENDUM Addendum-Page 2 12-Jan-2007 ...

Page 14

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the ...

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