LT1991CMS#PBF

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PRECISION, 100ΜA GAIN SELECTABLE AMPLIFIER

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LT1991CMS#PBF

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Analog Devices

PRECISION, 100ΜA GAIN SELECTABLE AMPLIFIER

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DocumentsR423 Reliability Data Datasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT1991CMS#PBF

-3db Bandwidth	110 kHz
Amplifier Type	Programmable Gain
Current - Input Bias	2.5 nA
Current - Output / Channel [custom]	21 mA
Current - Supply	130 µA
Gain Bandwidth Product	560 kHz
Mounting Type	Surface Mount
Number of Circuits	1
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Output Type	Rail-to-Rail
Package / Case	10-MSOP, 10-TFSOP
Package / Case [x]	3 mm
Package / Case [x]	0.118 in
Slew Rate	0.12 V/µs
Supplier Device Package	10-MSOP
Voltage - Input Offset	25 çV
Voltage - Supply Span (Max) [Max]	36 V
Voltage - Supply Span (Min) [Min]	2.7 V

LT1991 Series

Precision, 100µA Gain Selectable Amplifier

Part	Package / Case	Package / Case [x]	Package / Case [x]	-3db Bandwidth	Voltage - Supply Span (Max) [Max]	Output Type	Voltage - Supply Span (Min) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Amplifier Type	Current - Input Bias	Current - Supply	Current - Output / Channel [custom]	Gain Bandwidth Product	Slew Rate	Mounting Type	Number of Circuits	Voltage - Input Offset
Analog Devices LT1991ACMS#PBF	10-MSOP 10-TFSOP	3 mm	0.118 in	110 kHz	36 V	Rail-to-Rail	2.7 V	70 °C	0 °C	10-MSOP	Programmable Gain	2.5 nA	130 µA	21 mA	560 kHz	0.12 V/µs	Surface Mount	1	15 µV
Analog Devices LT1991AIDD#TRPBF	10-WFDFN Exposed Pad			110 kHz	36 V	Rail-to-Rail	2.7 V	85 °C	-40 °C	10-DFN (3x3)	Programmable Gain	2.5 nA	130 µA	21 mA	560 kHz	0.12 V/µs	Surface Mount	1	15 µV
Analog Devices LT1991AIDD#PBF	10-WFDFN Exposed Pad			110 kHz	36 V	Rail-to-Rail	2.7 V	85 °C	-40 °C	10-DFN (3x3)	Programmable Gain	2.5 nA	130 µA	21 mA	560 kHz	0.12 V/µs	Surface Mount	1	15 µV
Analog Devices LT1991IMS#TRPBF	10-MSOP 10-TFSOP	3 mm	0.118 in	110 kHz	36 V	Rail-to-Rail	2.7 V	85 °C	-40 °C	10-MSOP	Programmable Gain	2.5 nA	130 µA	21 mA	560 kHz	0.12 V/µs	Surface Mount	1	25 çV
Analog Devices LT1991HMS#TRPBF	10-MSOP 10-TFSOP	3 mm	0.118 in	110 kHz	36 V	Rail-to-Rail	2.7 V	125 °C	-40 °C	10-MSOP	Programmable Gain	2.5 nA	130 µA	21 mA	560 kHz	0.12 V/µs	Surface Mount	1	25 çV
Analog Devices LT1991CMS#PBF	10-MSOP 10-TFSOP	3 mm	0.118 in	110 kHz	36 V	Rail-to-Rail	2.7 V	70 °C	0 °C	10-MSOP	Programmable Gain	2.5 nA	130 µA	21 mA	560 kHz	0.12 V/µs	Surface Mount	1	25 çV
Analog Devices LT1991HDD#PBF	10-WFDFN Exposed Pad			110 kHz	36 V	Rail-to-Rail	2.7 V	70 °C	0 °C	10-DFN (3x3)	Programmable Gain	2.5 nA	130 µA	21 mA	560 kHz	0.12 V/µs	Surface Mount	1	25 çV
Analog Devices LT1991HMS#PBF	10-MSOP 10-TFSOP	3 mm	0.118 in	110 kHz	36 V	Rail-to-Rail	2.7 V	125 °C	-40 °C	10-MSOP	Programmable Gain	2.5 nA	130 µA	21 mA	560 kHz	0.12 V/µs	Surface Mount	1	25 çV
Analog Devices LT1991CDD#PBF	10-WFDFN Exposed Pad			110 kHz	36 V	Rail-to-Rail	2.7 V	70 °C	0 °C	10-DFN (3x3)	Programmable Gain	2.5 nA	130 µA	21 mA	560 kHz	0.12 V/µs	Surface Mount	1	25 çV

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 6.31
		10	$ 4.27
		25	$ 3.74
		100	$ 3.14
		250	$ 2.85
		500	$ 2.68
		1000	$ 2.53
		2500	$ 2.38

Description

General part information

LT1991 Series

The LT1991 combines a precision operational amplifier with eight precision resistors to form a one-chip solution for accurately amplifying voltages. Gains from -13 to 14 with a gain accuracy of 0.04% can be achieved using no external components. The device is particularly well suited for use as a difference amplifier, where the excellent resistor matching results in a common mode rejection ratio of greater than 75dB.The amplifier features a 50µV maximum input offset voltage and a gain bandwidth product of 560kHz. The device operates from any supply voltage from 2.7V to 36V and draws only 100µA supply current on a 5V supply. The output swings to within 40mV of either supply rail.The resistors have excellent matching, 0.04% over temperature for the 450k resistors. The matching temperature coefficent is guaranteed less than 3ppm/°C. The resistors are extremely linear with voltage, resulting in a gain nonlinearity of less than 10ppm.The LT1991 is fully specified at 5V and ±15V supplies and from -40°C to 85°C. The device is available in space saving 10-lead MSOP and low profile (0.8mm) 3mm × 3mm DFN packages.ApplicationsHandheld InstrumentationMedical InstrumentationStrain Gauge AmplifiersDifferential to Single-Ended Conversion