lt1167ais8-pbf Linear Technology Corporation, lt1167ais8-pbf Datasheet

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lt1167ais8-pbf

Manufacturer Part Number
lt1167ais8-pbf
Description
Single Resistor Gain Programmable, Precision Instrumentation Amplifier
Manufacturer
Linear Technology Corporation
Datasheet
FEATURES
TYPICAL APPLICATIO
APPLICATIO S
LT1634CCZ-1.25
Bridge Amplifiers
Strain Gauge Amplifiers
Thermocouple Amplifiers
Differential to Single-Ended Converters
Medical Instrumentation
Single Gain Set Resistor: G = 1 to 10,000
Gain Error: G = 10, 0.08% Max
Input Offset Voltage Drift: 0.3 V/ C Max
Meets IEC 1000-4-2 Level 4 ESD Tests with
Two External 5k Resistors
Gain Nonlinearity: G = 10, 10ppm Max
Input Offset Voltage: G = 10, 60 V Max
Input Bias Current: 350pA Max
PSRR at G = 1: 105dB Min
CMRR at G = 1: 90dB Min
Supply Current: 1.3mA Max
Wide Supply Range: 2.3V to 18V
1kHz Voltage Noise: 7.5nV/ Hz
0.1Hz to 10Hz Noise: 0.28 V
Available in 8-Pin PDIP and SO Packages
ADJUST
OFFSET
392k
R5
50k
50k
1
2
R4
R3
100k
3
2
R8
+
LT1490
1/2
U
5
6
V
S
8
4
+
LT1490
1/2
R6
1k
Single Supply Barometer
1
4
2
6
50k
R7
LUCAS NOVA SENOR
7
NPC-1220-015-A-3L
5k
R
5k
SET
P-P
U
5
5k
5k
+
1
3
0.2% ACCURACY AT 25 C
1.2% ACCURACY AT 0 C TO 60 C
V
S
= 8V TO 30V
R1
825
R2
12
2
1
8
3
+
LT1167
G = 60
4
V
S
7
5
VOLTS
DESCRIPTIO
2.800
3.000
3.200
The LT
amplifier that requires only one external resistor to set gains
of 1 to 10,000. The low voltage noise of 7.5nV/ Hz (at 1kHz)
is not compromised by low power dissipation (0.9mA typical
for 2.3V to 15V supplies).
The part’s high accuracy (10ppm maximum nonlinearity,
0.08% max gain error (G = 10)) is not degraded even for load
resistors as low as 2k (previous monolithic instrumentation
amps used 10k for their nonlinearity specifications). The
LT1167 is laser trimmed for very low input offset voltage
(40 V max), drift (0.3 V/ C), high CMRR (90dB, G = 1) and
PSRR (105dB, G = 1). Low input bias currents of 350pA max
are achieved with the use of superbeta processing. The
output can handle capacitive loads up to 1000pF in any gain
configuration while the inputs are ESD protected up to 13kV
(human body). The LT1167 with two external 5k resistors
passes the IEC 1000-4-2 level 4 specification.
The LT1167, offered in 8-pin PDIP and SO packages, requires
significantly less PC board area than discrete multi op amp
and resistor designs. These advantages make the LT1167 the
most cost effective solution for precision instrumentation
amplifier applications.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Programmable, Precision
6
Instrumentation Amplifier
INCHES Hg
28.00
30.00
32.00
TO
4-DIGIT
DVM
®
1167 is a low power, precision instrumentation
1167 TA01
Single Resistor Gain
U
G = 1000
R
V
OUT
L
= 1k
= 10V
Gain Nonlinearity
OUTPUT VOLTAGE (2V/DIV)
LT1167
1
1167 TA02

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lt1167ais8-pbf Summary of contents

Page 1

... The LT1167, offered in 8-pin PDIP and SO packages, requires significantly less PC board area than discrete multi op amp and resistor designs. These advantages make the LT1167 the most cost effective solution for precision instrumentation amplifier applications. , LTC and LT are registered trademarks of Linear Technology Corporation – ...

Page 2

... O = 1kHz (Note ORDER PART NUMBER TOP VIEW LT1167ACN8 R 8 LT1167ACS8 G – LT1167AIN8 + OUTPUT 6 LT1167AIS8 REF 5 LT1167CN8 LT1167CS8 LT1167IN8 LT1167IS8 = 130 C/ W (N8 PART MARKING = 190 C/ W (S8) JA 1167A 1167 1167AI 1167I = 2k, unless otherwise noted. L LT1167C/LT1167I TYP MAX MIN ...

Page 3

ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS (Note 7) i Input Noise Current Input Noise Current Density Input Resistance Differential Input Capacitance f IN(DIFF Common Mode Input f IN(CM) O ...

Page 4

LT1167 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER Gain Error Gain Nonlinearity G/T Gain vs Temperature V Total Input Referred OST Offset Voltage V Input Offset Voltage OSI V Input Offset Voltage Hysteresis OSIH V Output ...

Page 5

ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full operating temperature range, otherwise specifications are 15V 0V, – SYMBOL PARAMETER Gain Error G Gain ...

Page 6

LT1167 W U TYPICAL PERFOR A CE CHARACTERISTICS Gain Nonlinearity 1167 G01 OUTPUT VOLTAGE (2V/DIV 10V OUT Gain Nonlinearity 1000 1167 G04 OUTPUT VOLTAGE (2V/DIV) G ...

Page 7

W U TYPICAL PERFOR A CE CHARACTERISTICS Distribution of Output Offset Voltage – 137 N8 (2 LOTS 15V S 165 S8 (3 LOTS 302 TOTAL PARTS 30 25 ...

Page 8

LT1167 W U TYPICAL PERFOR A CE CHARACTERISTICS Input Bias Current vs Common Mode Input Voltage 500 400 300 200 100 –100 0 C – 200 25 C – – 300 – 400 ...

Page 9

W U TYPICAL PERFOR A CE CHARACTERISTICS Current Noise Density vs Frequency 1000 V = 15V 100 100 1000 FREQUENCY (Hz) 1167 G22 Overshoot vs Capacitive Load 100 V ...

Page 10

LT1167 W U TYPICAL PERFOR A CE CHARACTERISTICS Undistorted Output Swing vs Frequency 15V 10, 100, 1000 ...

Page 11

W BLOCK DIAGRA + V R3 400 –IN 2 – 400 +IN 3 – V THEORY OF OPERATIO The LT1167 is a modified version of the three op amp instrumentation ...

Page 12

LT1167 THEORY OF OPERATIO Input and Output Offset Voltage The offset voltage of the LT1167 has two components: the output offset and the input offset. The total offset voltage referred to the input (RTI) is found by dividing the output ...

Page 13

THEORY OF OPERATIO – R THERMOCOUPLE LT1167 G + 10k Figure 3. Providing an Input Common Mode Current Path U U APPLICATIO S I FOR ATIO The LT1167 is a low power precision instrumentation amplifier that requires only one external ...

Page 14

LT1167 U U APPLICATIO S I FOR ATIO To significantly reduce the effect of these out-of-band signals on the input offset voltage of instrumentation amplifiers, simple lowpass filters can be used at the inputs. These filters should be located very ...

Page 15

U U APPLICATIO S I FOR ATIO 10V 350 350 R 499 350 350 PRECISION BRIDGE TRANSDUCER Table 1. “Roll Your Own” vs LT1167 Error Budget ERROR SOURCE Absolute Accuracy Input Offset Voltage, V ...

Page 16

LT1167 U U APPLICATIO S I FOR ATIO + LT1167 G REF – 4 –IN – LT1464 V [(+IN) – (–IN)] ...

Page 17

U U APPLICATIO S I FOR ATIO 5V 1 3.5k 3. 200 249 3.5k 3.5k U TYPICAL APPLICATIO –IN + TECHNOLOGIES 67-8-3 R40KQ (0.02% RATIO MATCH 40k LT1167 20k 1 ...

Page 18

LT1167 PACKAGE DESCRIPTION 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.035 0.325 –0.015 +0.889 8.255 –0.381 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) ...

Page 19

... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 20

... Single 5V Supply, Bipolar Input Range: 10V, Power Dissipation: 55mW Typ LT1167 4-DIGIT 4 DVM 1/4 LT1114 9 – 14 CALIBRATION ADJUST 180k 50k 100k 100k 1167 TA03 < 105 530 A Max 1167fa LT/TP 0301 2K REV A • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1998 ...

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