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Precision Sample And Hold Amplifier
LF398
ic amplifier
The LFx98x series are precision sample-and-hold amplifiers with fast acquisition times and low input offset voltage, operating from ±5V to ±18V supplies.
In stock
Specifications
8- Operating Voltage
- ±5V to ±18V
- Supply Current
- 4.5mA to 6.5mA (TJ ≥25°C)
- Interface
- Logic input compatible with TTL, PMOS, CMOS
- Resolution
- 0.5mV typical hold step at Ch = 0.01 µF
- Range
- -VS + 3.5 V ≤VIN ≤+VS – 3.5 V, where VS = ±15V
- Accuracy
- 0.002% gain accuracy at TJ = 25°C
- Temperature Range
- -55°C to 125°C (LF198-N, LF198A-N); -25°C to 85°C (LF298); 0°C to 70°C (LF398-N, LF398A-N)
- Package
- SOIC-14, TO-99, PDIP-8
Pinout
8| Pin | Name | Functions | Notes |
|---|---|---|---|
| 12 | Positive supply (V+) | POWER | |
| 14 | DC offset compensation pin (OFFSET ADJUST) | GPIO | |
| 3 | Analog Input (INPUT) | ADC | |
| 4 | Negative supply (V–) | POWER | |
| 7 | Output (OUTPUT) | GPIO | |
| 8 | Hold capacitor (Ch) | GPIO | |
| 10 | Logic reference pin (LOGIC REFERENCE) | GPIO | |
| 11 | Logic input for Sample and Hold modes (LOGIC) | GPIO |
Interactive pinout
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LF398
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