Datasheet 搜索 > 放大器、缓冲器 > Linear Technology（凌力尔特） > LT1490CS8 数据手册 > LT1490CS8 用户编程技术手册 1/22 页
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LT1490CS8 用户编程技术手册 - Linear Technology（凌力尔特）
制造商:
Linear Technology（凌力尔特）
分类:
放大器、缓冲器
封装:
SO
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LT1490CS8数据手册
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LT1167
1
1167fc
TYPICAL APPLICATION
FEATURES DESCRIPTION
Single Resistor Gain
Programmable, Precision
Instrumentation Amplifier
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. 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, re-
quires significantly less PC board area than discrete multi
op amp and resistor designs.
The LT1167-1 offers the same performance as the LT1167,
but its input current characteristic at high common mode
voltage better supports applications with high input imped-
ance (see the Applications Information section).
Single Supply Barometer
APPLICATIONS
n
Single Gain Set Resistor: G = 1 to 10,000
n
Gain Error: G = 10, 0.08% Max
n
Input Offset Voltage Drift: 0.3μV/°C Max
n
Meets IEC 1000-4-2 Level 4 ESD Tests with
Two External 5k Resistors
n
Gain Nonlinearity: G = 10, 10ppm Max
n
Input Offset Voltage: G = 10, 60μV Max
n
Input Bias Current: 350pA Max
n
PSRR at G = 1: 105dB Min
n
CMRR at G = 1: 90dB Min
n
Supply Current: 1.3mA Max
n
Wide Supply Range: ±2.3V to ±18V
n
1kHz Voltage Noise: 7.5nV/√Hz
n
0.1Hz to 10Hz Noise: 0.28μV
P-P
n
Available in 8-Pin PDIP and SO Packages
n
Bridge Amplifiers
■
Strain Gauge Amplifi ers
■
Thermocouple Amplifi ers
■
Differential to Single-Ended Converters
■
Medical Instrumentation
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
–
+
+
–
–
+
2
1
1
1
1
2
R5
392k
R4
50k
OFFSET
ADJUST
R3
50k
R8
100k
R6
1k
LT1634CCZ-1.25
8
4
1/2
LT1490
3
R
SET
0.2% ACCURACY AT 25°C
1.2% ACCURACY AT 0°C TO 60°C
V
S
= 8V TO 30V
5k
5k
5k
5k
V
S
5
4
3
2
–
+
7
1/2
LT1490
5
6
2
8
LUCAS NOVA SENOR
NPC-1220-015-A-3L
7
V
S
6
1167 TA01
5
TO
4-DIGIT
DVM
4
R2
12Ω
LT1167
G = 60
R1
825Ω
3
6
R7
50k
VOLTS
2.800
3.000
3.200
INCHES Hg
28.00
30.00
32.00
OUTPUT VOLTAGE (2V/DIV)
NONLINEARITY (100ppm/DIV)
1167 TA02
G = 1000
R
L
= 1k
V
OUT
= ±10V
Gain Nonlinearity
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