LT1168IS8#PBF datasheet, PDF - EEWORLD Datasheet

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LT1168IS8#PBF: DescriptionIC OPAMP INSTR 400KHZ 8SO; CategoryAnalog mixed-signal IC Amplifier circuit; File Size336KB，20 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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LT1168IS8#PBF Overview

IC OPAMP INSTR 400KHZ 8SO

LT1168IS8#PBF Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	conform to
Maker	Linear ( ADI )
Parts packaging code	SOIC
package instruction	SOP,
Contacts	8
Manufacturer packaging code	S8
Reach Compliance Code	compliant
ECCN code	EAR99
Amplifier type	INSTRUMENTATION AMPLIFIER
Maximum average bias current (IIB)	0.0008 µA
Nominal bandwidth (3dB)	0.4 MHz
Minimum Common Mode Rejection Ratio	81 dB
Maximum input offset current (IIO)	0.0007 µA
Maximum input offset voltage	100 µV
JESD-30 code	R-PDSO-G8
JESD-609 code	e3
length	4.9025 mm
Humidity sensitivity level	1
Negative supply voltage upper limit	-20 V
Nominal Negative Supply Voltage (Vsup)	-15 V
maximum nonlinearity	0.01%
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1.752 mm
Nominal slew rate	0.42 V/us
Supply voltage upper limit	20 V
Nominal supply voltage (Vsup)	15 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
Maximum voltage gain	10000
Minimum voltage gain	1
Nominal voltage gain	10
width	3.899 mm
Base Number Matches	1

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FEATURES

■

LT1168

Low Power, Single

Resistor Gain Programmable,

Precision Instrumentation Amplifier

DESCRIPTIO

The LT

1168 is a micropower, precision instrumentation am-

plifier that requires only one external resistor to set gains of

1 to 10,000. The low voltage noise of 10nV/√Hz (at 1kHz) is

not compromised by low power dissipation (350µA typical for

±15V

supplies). The wide supply range of

±2.3V

±18V

allows

the LT1168 to fit into a wide variety of industrial as well as

battery-powered applications.

The high accuracy of the LT1168 is due to a 20ppm maximum

nonlinearity and 0.4% max gain error (G = 10). Previous mono-

lithic instrumentation amps cannot handle a 2k load resistor

whereas the nonlinearity of the LT1168 is specified for loads

as low as 2k. The LT1168 is laser trimmed for very low input

offset voltage (40µV max), drift (0.3µV/°C), high CMRR (90dB,

G = 1) and PSRR (103dB, G = 1). Low input bias currents of

250pA max are achieved with the use of superbeta process-

ing. 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 LT1168 with two external 5k

resistors passes the IEC 1000-4-2 level 4 specification.

The LT1168 is a pin-for-pin improved second source for the

AD620 and INA118. The LT1168, offered in 8-pin PDIP and

SO packages, requires significantly less PC board area than

discrete op amp resistor designs. These advantages make

the LT1168 the most cost effective solution for precision

instrumentation amplifier applications.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

Supply Current: 530µA Max

Meets IEC 1000-4-2 Level 4 (±15kV) ESD Tests

with Two External 5k Resistors

Single Gain Set Resistor: G = 1 to 10,000

Gain Error: G = 10, 0.4% Max

Input Offset Voltage Drift: 0.3µV/°C Max

Gain Nonlinearity: G = 10, 20ppm Max

Input Offset Voltage: 40µV Max

Input Bias Current: 250pA Max

PSRR at A

=1: 103dB Min

CMRR at A

= 1: 90dB Min

Wide Supply Range:

±2.3V

±18V

1kHz Voltage Noise: 10nV/√Hz

0.1Hz to 10Hz Noise: 0.28µV

P-P

Available in 8-Pin PDIP and SO Packages

APPLICATIO S

■

Bridge Amplifiers

Strain Gauge Amplifiers

Thermocouple Amplifiers

Differential to Single-Ended Converters

Differential Voltage to Current Converters

Data Acquisition

Battery-Powered and Portable Equipment

Medical Instrumentation

Scales

TYPICAL APPLICATIO

Single Supply* Pressure Monitor

BI TECHNOLOGIES

67-8-3 R40KQ, (0.02% RATIO MATCH)

3.5k

G = 200

249Ω

40k

REF

LT1168

20k

40k

ADC

LTC

1286

AGND

DIGITAL

DATA

OUTPUT

3.5k

–

1/2

LT1112

–

1168 TA01

NONLINEARITY (100ppm/DIV)

*See Theory of Operation section

Gain Nonlinearity

G = 1000

= 2k

OUT

±10V

OUTPUT VOLTAGE (2V/DIV)

1168 TA01a

1168fa

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