LF298M Amplifiers & Comparators by Texas Instruments

AMP SAMPLE AND HOLD SOIC14 298

Semiconductors - ICs>Amplifiers & Comparators>Sample & Hold Amplifiers
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The LF298 and LFx98x devices are monolithic sample-and-hold circuits that use BI-FET technology to obtain ultrahigh DC accuracy with fast acquisition of signal and low droop rate. Operating as a unitygain follower, DC gain accuracy is 0.002% typical and acquisition time is as low as 6 µs 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 1-MHz operational amplifiers without having stability problems. Input impedance of 1010 Ω allows highsource 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 5 mV/min with a 1-µF hold capacitor. The JFETs have much lower noise than MOS devices used in previous designs and do not exhibit high temperature instabilities. The overall design ensures no feedthrough from input to output in the hold mode, even for input signals equal to the supply voltages. Logic inputs on the LF198-N are fully differential with low input current, allowing for direct connection to TTL, PMOS, and CMOS. Differential threshold is 1.4 V. The LF198-N will operate from ±5-V to ±18-V supplies. An A version is available with tightened electrical specifications.

No distributors results available

Specifications

No. of Amplifiers 1 Amplifier, 1Amplifiers
Bandwidth -
Acquisition Time 4µs
Input Offset Voltage 3mV
Amplifier Case Style SOIC
No. of Pins 14Pins
Supply Voltage Range ± 5V to ± 18V
Settling Time -
Operating Temperature Min -25°C
Operating Temperature Max 85°C
Product Range -
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Amplifer Supply Voltage ± 5V to ± 18V
Amplifier Type Sample and Hold
Base Number 298
IC Generic Number 298
Input Offset Voltage Max 5mV
Operating Temperature Range -25°C to +85°C
Supply Voltage + Nom 18V
Supply Voltage Max 18V
Supply Voltage Min 5V
Supply Voltage Nom -18V
Termination Type Surface Mount Device

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LF298M?

Additional datasheets, footprints and schematics for LF298M are listed on our Part Details page. You can also find images and similar parts to LF298M on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LF298M on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LF298M price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LF298M fall under?

The LF298M is listed under Semiconductors - ICs > Amplifiers & Comparators > Sample & Hold Amplifiers.

Can I view similar or alternative parts?

You can view similar parts to LF298M when available in the Sample & Hold Amplifiers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the LF298M you can contact the distributor directly for product support, shipping queries etc.

Is the LF298M RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for LF298M have stock available?

There is no stock from authorised distributors for LF298M.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for LF298M often in real-time on the comparison pages.

What if I can't find stock of LF298M?

You can fill out our help required form which you can use to request a quote for LF298M from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.
Okay