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LT1167IS8 View Datasheet(PDF) - Linear Technology

Part NameLT1167IS8 Linear
Linear Technology Linear
DescriptionSingle Resistor Gain Programmable, Precision Instrumentation Amplifier


LT1167IS8 Datasheet PDF : 20 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
FEATURES
s Single Gain Set Resistor: G = 1 to 10,000
s Gain Error: G = 10, 0.08% Max
s Input Offset Voltage Drift: 0.3µV/°C Max
s Meets IEC 1000-4-2 Level 4 ESD Tests with
Two External 5k Resistors
s Gain Nonlinearity: G = 10, 10ppm Max
s Input Offset Voltage: G = 10, 60µV Max
s Input Bias Current: 350pA Max
s PSRR at G = 1: 105dB Min
s CMRR at G = 1: 90dB Min
s Supply Current: 1.3mA Max
s Wide Supply Range: ±2.3V to ±18V
s 1kHz Voltage Noise: 7.5nV/Hz
s 0.1Hz to 10Hz Noise: 0.28µVP-P
s Available in 8-Pin PDIP and SO Packages
U
APPLICATIO S
s Bridge Amplifiers
s Strain Gauge Amplifiers
s Thermocouple Amplifiers
s Differential to Single-Ended Converters
s Medical Instrumentation
LT1167
Single Resistor Gain
Programmable, Precision
Instrumentation Amplifier
DESCRIPTIO
The LT®1167 is a low power, precision instrumentation
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
(40µV max), drift (0.3µV/°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.
TYPICAL APPLICATIO
Single Supply Barometer
VS
R5
392k
1
LT1634CCZ-1.25
2
OFFSET R4
ADJUST 50k
R3
50k
3+
8
1/2
1
LT1490
2
4
R6
1k
5+
1/2
LT1490
R8 6
100k
LUCAS NOVA SENOR
NPC-1220-015-A-3L
4
1
5k
5k
2 5k
5k
6
+3
RSET
5
7
VS
2
1
7
R1
825
LT1167
R2
G = 60
128
3+
4
R7
50k
0.2% ACCURACY AT 25°C
1.2% ACCURACY AT 0°C TO 60°C
VS = 8V TO 30V
6
5
TO
4-DIGIT
DVM
VOLTS
2.800
3.000
3.200
INCHES Hg
28.00
30.00
32.00
1167 TA01
Gain Nonlinearity
G = 1000
RL = 1k
VOUT = ±10V
OUTPUT VOLTAGE (2V/DIV)
1167 TA02
1
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DESCRIPTION
The LT®1167 is a low power, precision instrumentation 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 (40µV max), drift (0.3µV/°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.

FEATURES
■ Single Gain Set Resistor: G = 1 to 10,000
■ Gain Error: G = 10, 0.08% Max
■ Input Offset Voltage Drift: 0.3µV/°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, 60µV 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: 0.28µVP-P
■ Available in 8-Pin PDIP and SO Packages

APPLICATIONS
■ Bridge Amplifiers
■ Strain Gauge Amplifiers
■ Thermocouple Amplifiers
■ Differential to Single-Ended Converters
■ Medical Instrumentation

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