LF398N
製造中Precision Sample and Hold Amplifier
- 製品モデル
- 1
- 1Ku当たりの価格
- 最低価格:$2.53
製品の詳細
- 4µs Typical Acquisition Time
- Guaranteed 0.01% Max. Gain Error
- 2mV Typ. Offset Voltage
- 2.5mV Max. Hold Step
- Very Low Feedthrough 80dB Min.
- High Input Impedance Under All Conditions
- Logic Inputs Compatible with All Logic Families
The LF398 is a precision sample and hold amplifier which uses a combination of bipolar and junction FET transistors to provide precision, high speed, and long hold times. A typical offset voltage of 2mV and gain error of 0.004% allow this sample and hold amplifier to be used in 12-bit systems. Dynamic performance can
be optimized by proper selection of the external hold capacitor. Acquisition times can be as low as 4µs for small capacitors while hold step and droop errors can be held below 0.1mV and 30µV/sec respectively when using larger capacitors.
The LF398 is fixed at unity gain with 10 ohms input impedance independent of sample/hold mode. The logic inputs are high impedence differential to allow easy interfacing to any logic family without ground loop problems. A separate offset adjust pin can be used to zero the offset voltage in either the sample or hold mode. Additionally, the hold capacitor can be driven with an external signal to provide precision level shifting or "differencing" operation. The device will operate over a wide supply voltage range from ±5V to �18V with very little change in performance, and key parameters are specified over this full supply range.
Applications
- 12-Bit Data Acquisition Systems
- Ramp Generators
- Analog Switches
- Staircase Generators
- Sample and Difference Circuits
ドキュメント
製品モデル | ピン/パッケージ図 | 資料 | CADシンボル、フットプリント、および3Dモデル |
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LF398N8#PBF | 8-Lead PDIP (Narrow 0.3 Inch) |
製品モデル | 製品ライフサイクル | PCN |
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該当なし | ||
10 8, 2024 - 24_0234 Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package |
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LF398N8#PBF | 製造中 | |
10 11, 2022 - 22_0241 Epoxy Change from Henkel 8290 to 8290A for PDIP Package |
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LF398N8#PBF | 製造中 | |
8 6, 2022 - 22_0172 Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG] |
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LF398N8#PBF | 製造中 |
これは最新改訂バージョンのデータシートです。