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LF398MX The Texas Instruments LF398MX is a monolithic sample and hold circuit featuring fast acquisition times and high DC accuracy. It operates from ±5-V to ±18-V supplies.
Mfr Part #:

LF398MX

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LF398MX is a monolithic sample and hold circuit featuring fast acquisition times and high DC accuracy. It operates from ±5-V to ±18-V supplies.
✓ Total Stock: 4,349 pcs

LF398MX Available from 2 distributors

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LF398MX Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Bandwidth
Input Impedance
Mounting Type
Operating Temperature Range
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SVHC Present
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LF398MX Description

Short technical summary and product information.

The LF398MX from Texas Instruments is a monolithic sample and hold circuit designed for high DC accuracy and fast signal acquisition. Utilizing BI-FET technology, it achieves an acquisition time as low as 6 µs to 0.01% and a typical gain accuracy of 0.002%.

 

This device operates from wide supply voltage ranges of ±5-V to ±18-V and is compatible with TTL, PMOS, and CMOS logic inputs. It offers a low input offset and a typical hold step of 0.5 mV at a 0.01 µF hold capacitor. The input impedance is high at 10¹⁰ Ω, allowing for high-source impedances without accuracy degradation.

 

The LF398MX is available in SOIC and PDIP packages, suitable for surface mount and through-hole applications respectively. Its wide bandwidth allows integration within feedback loops of operational amplifiers without stability issues. The circuit ensures no feedthrough from input to output in hold mode, even with input signals at supply voltage levels.

LF398MX Quick Information

Product Type: Monolithic Sample and Hold Circuit
Canonical Name: LF398MX Monolithic Sample and Hold Circuit
Subcategory: Special Purpose

LF398MX Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LF398MX Features

  • Monolithic sample and hold circuit.
  • Fast acquisition time as low as 6 µs.
  • High DC gain accuracy of 0.002%.
  • Wide supply voltage range ±5V to ±18V.
  • Compatible with TTL, PMOS, and CMOS logic.

LF398MX Applications

  • Ideal for data acquisition systems.
  • Used in signal processing circuits.
  • Suitable for analog memory applications.
  • Applicable in test and measurement equipment.

LF398MX FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the LF398MX?

±5V to ±18V.

What package options are available for the LF398MX?

SOIC and PDIP packages.

What is the operating temperature range of the LF398MX?

0°C to 70°C.

What is the acquisition time of the LF398MX?

Typical 6 µs to 0.01%, maximum 10 µs.

What is the gain accuracy of the LF398MX?

0.002% typical.

What is the hold step of the LF398MX?

0.5 mV typical with 0.01 µF hold capacitor.

What is the input impedance of the LF398MX?

10 GΩ typical.

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