LF398N/NOPB - 

Sample and Hold Amplifier, 1 Amplifier, 1 MHz, 20 µs, 2 mV, DIP, 8 Pins

LF398N/NOPB - Sample and Hold Amplifier, 1 Amplifier, 1 MHz, 20 µs, 2 mV, DIP, 8 Pins

The actual product may differ from image shown

Manufacturer Part No:
Newark Part No.:
Technical Datasheet:
See all Technical Docs

Product Overview

The LF398N/NOPB is a monolithic Sample-and-Hold Circuit uses BI-FET technology to obtain ultrahigh DC accuracy with fast acquisition of signal and low droop rate. Operating as unity-gain follower, DC gain accuracy is 0.002% typical and acquisition time is as low as 6µs to 0.01%. A bipolar input stage is used to achieve low offset voltage and wide bandwidth. Input offset adjust is accomplished with a single pin and does not degrade input offset drift. The wide bandwidth allows the LF198-N to be included inside the feedback loop of 1MHz operational amplifiers without having stability problems. Input impedance of 10¹⁰Ω allows high-source impedances to be used without degrading accuracy. P-channel junction FETs are combined with bipolar devices in the output amplifier to give droop rates as low as 5mV/minute with a 1µF hold capacitor. The JFETs have much lower noise than MOS devices used in previous designs and do not exhibit high temperature instabilities.
  • Low input offset
  • Low output noise in hold mode
  • Input characteristics do not change during hold mode
  • High supply rejection ratio in sample or hold
  • Wide bandwidth
  • Logic input compatible with TTL, PMOS and CMOS
  • 0.5mV Typical hold step at 0.01µF
  • 0.002% Gain accuracy
  • 500mW Power dissipation
  • ±15V Supply voltage




Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

Product Information

1 Amplifier
± 5V to ± 18V
MSL 1 - Unlimited
Find similar products Choose and modify the attributes above to find similar products.


Compare Selected
Manufacturer Part Number
Newark Part No.
Manufacturer / Description
Price For
Awaiting Delivery
Contact us for more availability or to purchase on backorder


1+ $1.66 10+ $1.41 100+ $1.13 500+ $0.982 1000+ $0.814 2500+ $0.758 5000+ $0.73 More Less

Associated Products

Compare Selected

Related Searches

US continental orders over $49 and under 50 pounds may qualify for free ground shipping. Click the link for the full Terms and Conditions of the offer.

1,014 In stock

for same day shipping

see cut-off times
Check stock and lead times
More stock available week commencing 9/17/18
$1.66 $ 1.66
Price for:
Multiple: 1 Minimum: 1
Quantity Price
1 + $1.66
10 + $1.41
100 + $1.13
500 + $0.982
1000 + $0.814
2500 + $0.758
5000 + $0.73
No longer stocked:: No Longer Manufactured::
Add to Cart
Add Line Note
Total Price:
Total Price: ( )
Total Price: --

Customer Reviews

Customer Q&A Exchange


Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.


Select document type(s) you want to see and click “Apply Filters” button
Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.