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LT1178S8

Description
Op Amp Dual Precision Amplifier ±22V/44V 8-Pin SOIC N
File Size228KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LT1178S8 Overview

Op Amp Dual Precision Amplifier ±22V/44V 8-Pin SOIC N

LT1178S8 Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesNot Compliant
ECCN (US)EAR99
Part StatusUnconfirmed
SVHCYes
SVHC Exceeds ThresholdYes
TypePrecision Amplifier
Manufacturer TypePrecision Amplifier
Number of Channels per Chip2
Process TechnologyBipolar
Maximum Input Offset Voltage (mV)0.18@5V
Minimum Single Supply Voltage (V)2
Typical Single Supply Voltage (V)3|5|9|12|15|18|24|28
Maximum Single Supply Voltage (V)44
Minimum Dual Supply Voltage (V)±1
Typical Dual Supply Voltage (V)±15|±18|±12|±9|±5|±3
Maximum Dual Supply Voltage (V)±22
Maximum Input Offset Current (uA)0.00035@5V
Maximum Input Bias Current (uA)0.006@5V
Maximum Supply Current (mA)0.042@5V
Power Supply TypeDual|Single
Typical Slew Rate (V/us)0.025@5V
Typical Input Noise Voltage Density (nV/rtHz)50@5V
Typical Voltage Gain (dB)116.9
Typical Noninverting Input Current Noise Density (pA/rtHz)0.01@5V
Minimum PSRR (dB)92
Minimum CMRR (dB)90
Minimum CMRR Range (dB)90 to 95
Typical Gain Bandwidth Product (MHz)0.06
Shut Down SupportNo
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
Supplier Temperature GradeCommercial
Pin Count8
Standard Package NameSOP
Supplier PackageSOIC N
MountingSurface Mount
Package Height1.5(Max)
Package Length5(Max)
Package Width3.99(Max)
PCB changed8
Lead ShapeGull-wing
LT1178/LT1179
17µA Max, Dual and Quad,
Single Supply, Precision Op Amps
FEATURES
DESCRIPTIO
17µA Max Supply Current per Amplifier
70µV Max Offset Voltage
250pA Max Offset Current
5nA Max Input Bias Current
0.9µV
P-P
0.1Hz to 10Hz Voltage Noise
1.5pA
P-P
0.1Hz to 10Hz Current Noise
0.5µV/°C Offset Voltage Drift
85kHz Gain-Bandwidth Product
0.04V/µs Slew Rate
Single Supply Operation:
Input Voltage Range Includes Ground
Output Swings to Ground While Sinking Current
No Pull Down Resistors are Needed
Output Sources and Sinks 5mA Load Current
The LT
®
1178 is a micropower dual op amp in the standard
8-pin configuration; the LT1179 is a micropower quad op
amp offered in the standard 14-pin packages. Both
devices are optimized for single supply operation at 5V.
Specifications are also provided at
±15V
supplies.
The extremely low supply current is combined with true
precision specifications: offset voltage is 30µV, offset
current is 50pA. Both offset parameters have low drift with
temperature. The 1.5pAp-p current noise and picoampere
offset current permit the use of megaohm level source
resistors without introducing serious errors. Voltage noise,
at 0.9µVp-p, is remarkably low considering the low
supply current.
Both the LT1178 and LT1179 can be operated from a
single supply (as low as one lithium cell or two NiCd
batteries). The input range goes below ground. The
all-NPN output stage swings to within a few millivolts of
ground while sinking current—no power consuming pull
down resistors are needed.
For applications where three times higher supply
current is acceptable, the micropower LT1077 single,
LT1078 dual and LT1079 quad are recommended. The
LT1077/78/79 have significantly higher bandwidth, slew
rate, lower voltage noise and better output drive capability.
APPLICATIO S
Battery or Solar Powered Systems
Portable Instrumentation
Remote Sensor Amplifier
Satellite Circuitry
Micropower Sample-and-Hold
Thermocouple Amplifier
Micropower Filters
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
2
Self-Buffered, Dual Output, Micropower Reference
20
Supply Current vs Temperature
SUPPLY CURRENT PER AMPLIFIER (µA)
1/2 LT1178
1
4V TO 9V
5
250k*
6
1.2365V
OUTPUT
18
3
+
4
16
V
S
= 5V, 0V
14
V
S
=
±1.5V
12
+
8
7
2.470V
OUTPUT
1/2 LT1178
0.1µF
1M*
0.1µF
LT1004-1.2
2M
1M*
* = 0.1% FILM RESISTORS
TOTAL BATTERY CURRENT = 28µA
OUTPUT ACCURACY =
±
0.4% MAX
TEMPERATURE COEFFICIENT = 20ppm/°C
LOAD REGULATION = 25ppm/mA, I
L
5mA, V
+
5V
LINE REGULATION = 10ppm/V
LT1178/LT1179 • TA01
10
–50
–25
U
V
S
=
±15V
25
50
0
TEMPERATURE (°C)
75
100
LT1178/LT1179 • TA02
U
U
11789fb
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