LF398 Sample and Hold Amplifier IC DIP-8 Package

The LF398 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 unity-gain follower, DC gain accuracy is 0.002% typical and acquisition time is as low as 6 ?s 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 LF398 to be included inside the feedback loop of 1-MHz operational amplifiers without having stability problems. Input impedance of 1010 ? 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 5 mV/min with a 1-?F 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 feed through from input to output in the hold mode, even for input signals equal to the supply voltages. Logic inputs on the LF398 are fully differential with low input current, allowing for direct connection to TTL, PMOS, and CMOS. Differential threshold is 1.4 V. The LF398  will operate from ?5-V to ?18-V supplies. An A version is available with tightened electrical specifications.

SKU: RW-02185

Apple Shopping Event

Hurry and get discounts on all Apple devices up to 20%

Sale_coupon_15

175.82

Inclusive of GST

0 People watching this product now!
  • Pick up from the Robotwala Store

To pick up today

Free

  • Shiprocket from Air

Our courier will deliver to the specified address

3-4 Days

139

  • Shiprocket from Surface

courier will deliver to the specified address

5-7 Days

90

  • Warranty 1 year
  • Free 30-Day returns

Payment Methods:

Description

The LF398 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 unity-gain follower, DC gain accuracy is 0.002% typical and acquisition time is as low as 6 ?s 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 LF398 to be included inside the feedback loop of 1-MHz operational amplifiers without having stability problems. Input impedance of 1010 ? 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 5 mV/min with a 1-?F 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 feed through from input to output in the hold mode, even for input signals equal to the supply voltages. Logic inputs on the LF398 are fully differential with low input current, allowing for direct connection to TTL, PMOS, and CMOS. Differential threshold is 1.4 V. The LF398  will operate from ?5-V to ?18-V supplies. An A version is available with tightened electrical specifications.


Features:-

? Operates from ?5-V to ?18-V Supplies 

? Less than 10-?s Acquisition Time 

? Logic Input Compatible With TTL, PMOS, CMOS 

? 0.5-mV Typical Hold Step at Ch = 0.01 ?F 

? Low Input Offset 

? 0.002% Gain Accuracy 

? Low Output Noise in Hold Mode 

? Input Characteristics Do Not Change During Hold Mode 

? High Supply Rejection Ratio in Sample or Hold 

? Wide Bandwidth 

? Space Qualified, JM38510 


Specification:-

Parameter Min Max Unit
 Supply Voltage ?18 V
Power dissipation 500 m W
Input voltage ?18 V
Logic-to-logic reference differential voltage  7 -30 V
Output short circuit duration Indefinite
Hold capacitor short circuit duration 10 sec
Storage temperature -65 150 ?C


Related Document:-

 LF398 IC Datasheet

Additional information

Operating voltage

2.5 3.0V

Pixel Resolution

0.3MP

Photosensitive array

640 x 480

Optical Size

1.6 inch

Angel of view

67 degrees

Maximum Frame Rate

30fps VGA

Sensitivity

1.3V/(Lux-sec)

Dormancy

Less than 20A

Power consumption

60mW/15fpsVGA YUV

Temperature operation Range

-30 C ~ 70 C

Pixel area

3.6 x 3.6 m

Signal to noise ratio (SNR)

46 dB

Dynamic range

52 dB

Specification

Customer Reviews

0 reviews
0
0
0
0
0

There are no reviews yet.

Be the first to review “LF398 Sample and Hold Amplifier IC DIP-8 Package”

Your email address will not be published. Required fields are marked *

1 2 3 4 5
1 2 3 4 5
1 2 3 4 5