LT1460EIS8-5#PBF

LF398N - Precision Sample and Hold Amplifier in DIP8 Package

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Price:: US $1.50~1.80 / piece [Get Latest Price]

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	US $1.50~1.80

PartNumber:: LT1460EIS8-5#PBF

Brand:: Linear Technology - Linear | Pack: SOP | D/C: 11+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2012-10-18

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Product Summary

Metal Can and Ceramic Package Versions of this part are Obsolete: LF198AH, LF198H, LF398AH, LF398H, LF398J8. The LF398AN8 is Obsolete.

The LF398 is a precision sample and hold amplifier which uses a combination of bipolar and junction FET transistors to provide precision, high speed, and long hold times. A typical offset voltage of 2mV and gain error of 0.004% allow this sample and hold amplifier to be used in 12-bit systems. Dynamic performance canbe optimized by proper selection of the external hold capacitor. Acquisition times can be as low as 4μs for small capacitors while hold step and droop errors can be held below 0.1mV and 30μV/sec respectively when using larger capacitors.The LF398 is fixed at unity gain with 10 ohms input impedance independent of sample/hold mode. The logic inputs are high impedence differential to allow easy interfacing to any logic family without ground loop problems. A separate offset a
djust pin can be used to zero the offset voltage in either the sample or hold mode. Additionally, the hold capacitor can be driven with an external signal to provide precision level shifting or "differencing" operation. The device will operate over a wide supply voltage range from ±5V to ±18V with very little change in performance, and key parameters are specified over this full supply range.

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Features

4μs Typical Acquisition Time
Guaranteed 0.01% Max. Gain Error
2mV Typ. Offset Voltage
2.5mV Max. Hold Step
Very Low Feedthrough 80dB Min.
High Input Impedance Under All Conditions
Logic Inputs Compatible with All Logic Families
DIP8 Package
For SOP8 Package, see LF398S
Metal Can and Ceramic Package Versions of this part are Obsolete: LF198AH, LF198H, LF398AH, LF398H, LF398J8. The LF398AN8 is Obsolete.