LT1990AHS8#PBF

Voltage - Input Offset:	900µV
Base Part Number:	LT1990
Supplier Device Package:	8-SO
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply, Single/Dual (±):	2.7 V ~ 36 V, ±1.35 V ~ 18 V
Current - Output / Channel:	22mA
Current - Supply:	140µA
Series:	--
-3db Bandwidth:	105kHz
Slew Rate:	0.55 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	1
Amplifier Type:	Differential
Part Status:	Active
Packaging:	Tube

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Introduction

LT1990AHS8#PBF is part of a range of high performance and versatile low voltage operational amplifiers from Linear Technology. This amplifier is suitable for use in a wide variety of instrumentation and portable applications.

Applications

The LT1990AHS8#PBF’s low-profile SOT23 package maximizes board space savings and reduces thermal stress in confined areas, making it ideal for range of portable instrumentation applications. It is well-suited for portable I/O signal conditioning, audio systems, active transimpedance amplification and high-precision signal measurement such as data acquisition ADC and DAC buffering, signal transmission and high-speed switching.

Operation

The LT1990AHS8#PBF’s low-voltage operation, superior common-mode rejection, low input bias current and rail-to-rail output combine with high slew rate and low gain-bandwidth product to make it ideal for many instrumentation applications. The amplifier features a unity-gain stable output, a rail-to-rail input stage and excellent thermal and supply noise immunity. The open-loop voltage gain is optimized for low- frequency accuracy and is linear over its specified range.

Performance

The LT1990AHS8#PBF offers excellent performance levels, making it ideal for portable instrumentation applications which require very low power consumption and high speed. The amplifier delivers rail-to-rail input and output over the entire common-mode voltage range, with a mid-rail input level of 4V and an output drive capability into a 40kΩ load. It features a maximum supply voltage of 6.5V, a wide bandwidth of 4MHz, and excellent overload and supply rejection.

Conclusion

The LT1990AHS8#PBF is an ideal solution for a wide range of instrumentation and portable applications requiring very low power consumption, high speed, and rail-to-rail input/output. With a mid-rail input level of 4V and excellent common-mode rejection, the amplifier delivers a wide bandwidth of 4MHz, excellent overload immunity and supply rejection, and high linearity over its specified voltage range.

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