LT1112MJ8

LT1112MJ8 Datasheet

LT1112/LT1114

Part	Datasheet
LT1112MJ8	LT1112MJ8 (pdf)

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LT1112/LT1114 Dual/Quad Low Power Precision, Picoamp Input Op Amps • Offset Voltage Prime Grade 60µV Max • Offset Voltage Low Cost Grade Including Surface Mount Dual/Quad 75µV Max • Offset Voltage Drift 0.5µV/°C Max • Input Bias Current 250pA Max • 0.1Hz to 10Hz Noise 0.3µVP-P, 2.2pAP-P • Supply Current per Amplifier 400µA Max • CMRR 120dB Min • Voltage Gain 1 Million Min • Guaranteed Specs with ±1.0V Supplies • Guaranteed Matching Specifications • SO-8 Package Standard Pinout • LT1114 in Narrow Surface Mount Package U APPLICATIO S • Picoampere/Microvolt Instrumentation • Two and Three Op Amp Instrumentation Amplifers • Thermocouple and Bridge Amplifiers • Low Frequency Active Filters • Photo Current Amplifiers • Battery-Powered Systems DESCRIPTIO The dual and LT1114 quad op amps achieve a new standard in combining low cost and outstanding precision specifications. The performance of the selected prime grades matches or exceeds competitive devices. In the design of the LT1112/ LT1114 however, particular emphasis has been placed on optimizing performance in the low cost plastic and SO packages. For example, the 75µV maximum offset voltage in these low cost packages is the lowest on any dual or quad non-chopper op amp. The LT1112/LT1114 also provide a full set of matching specifications, facilitating their use in such matching dependent applications as two and three op amp instrumentation amplifiers. Another set of specifications is furnished at ±1V supplies. This, combined with the low 320µA supply current per amplifier, allows the LT1112/LT1114 to be powered by two nearly discharged AA cells. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Protected by U.S. Patents 4,575,685 4,775,884 and 4,837,496 TYPICAL APPLICATIO Dual Output, Buffered Reference On Single 3V Supply 1/2 LT1112 LT1004-1.2 TOTAL SUPPLY CURRENT = 700µA 2V REFERENCE SOURCES 1.7mA, SINKS 5mA OPTIONAL RX = INCREASES SOURCE CURRENT TO 5mA 0.765V REFERENCE SOURCES 5mA, SINKS 0.5mA TEMPERATURE COEFFICIENT LIMITED 2.000V BY REFERENCE = 20ppm/°C MINIMUM SUPPLY = 2.7V 46.4k 7 1/2 LT1112 0.765V LT1112/14 • TA01 PERCENT OF UNITS Distribution of Input Offset Voltage In All Packages 30 VS = ±15V TA = 25°C 0 10 30 50 70 INPUT OFFSET VOLTAGE µV LT1112/14 • TA02 111214fb LT1112/LT1114 U WW W ABSOLUTE AXI U RATI GS Note 1 Supply Voltage ±20V Differential Input Current Note 2 ±10mA Input Voltage Equal to Supply Voltage ±20V Output Short-Circuit Duration Indefinite Storage Temperature Range 65°C to 150°C Lead Temperature Soldering, 10 sec ................ 300°C Operating Temperature Range Note 11 LT1112AM/LT1112M

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LT1112/LT1114

Dual/Quad Low Power Precision, Picoamp Input Op Amps
• Offset Voltage Prime Grade 60µV Max
• Offset Voltage Low Cost Grade

Including Surface Mount Dual/Quad 75µV Max
• Offset Voltage Drift 0.5µV/°C Max
• Input Bias Current 250pA Max
• 0.1Hz to 10Hz Noise 0.3µVP-P, 2.2pAP-P
• Supply Current per Amplifier 400µA Max
• CMRR 120dB Min
• Voltage Gain 1 Million Min
• Guaranteed Specs with ±1.0V Supplies
• Guaranteed Matching Specifications
• SO-8 Package Standard Pinout
• LT1114 in Narrow Surface Mount Package

U APPLICATIO S
• Picoampere/Microvolt Instrumentation
• Two and Three Op Amp Instrumentation Amplifers
• Thermocouple and Bridge Amplifiers
• Low Frequency Active Filters
• Photo Current Amplifiers
• Battery-Powered Systems

DESCRIPTIO

The dual and LT1114 quad op amps achieve a new standard in combining low cost and outstanding precision specifications.

The performance of the selected prime grades matches or exceeds competitive devices. In the design of the LT1112/ LT1114 however, particular emphasis has been placed on optimizing performance in the low cost plastic and SO packages. For example, the 75µV maximum offset voltage in these low cost packages is the lowest on any dual or quad non-chopper op amp.

The LT1112/LT1114 also provide a full set of matching specifications, facilitating their use in such matching dependent applications as two and three op amp instrumentation amplifiers.

Another set of specifications is furnished at ±1V supplies. This, combined with the low 320µA supply current per amplifier, allows the LT1112/LT1114 to be powered by two nearly discharged AA cells.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Protected by U.S. Patents 4,575,685 4,775,884 and 4,837,496

TYPICAL APPLICATIO

Dual Output, Buffered Reference On Single 3V Supply
1/2 LT1112

LT1004-1.2

TOTAL SUPPLY CURRENT = 700µA
2V REFERENCE SOURCES 1.7mA, SINKS 5mA

OPTIONAL RX = INCREASES SOURCE

CURRENT TO 5mA
0.765V REFERENCE SOURCES 5mA, SINKS 0.5mA

TEMPERATURE COEFFICIENT LIMITED
2.000V BY REFERENCE = 20ppm/°C

MINIMUM SUPPLY = 2.7V
46.4k
7 1/2 LT1112
0.765V

LT1112/14
• TA01

PERCENT OF UNITS

Distribution of Input Offset Voltage In All Packages
30 VS = ±15V TA = 25°C
0 10 30 50 70

INPUT OFFSET VOLTAGE µV

LT1112/14
• TA02
111214fb

LT1112/LT1114

U WW W

ABSOLUTE AXI U RATI GS Note 1

Supply Voltage ±20V Differential Input Current Note 2 ±10mA Input Voltage Equal to Supply Voltage ±20V Output Short-Circuit Duration Indefinite

Storage Temperature Range 65°C to 150°C Lead Temperature Soldering, 10 sec ................ 300°C Operating Temperature Range Note 11

LT1112AM/LT1112M

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Datasheet ID: LT1112MJ8 645741