CIRCUIT060024
Difference amplifier (subtractor) circuit
CIRCUIT060024
概要
This design inputs two signals, Vi1 and Vi2, and outputs their difference (subtracts). The input signals typically come from low-impedance sources because the input impedance of this circuit is determined by the resistive network. Difference amplifiers are typically used to amplify differential input signals and reject common-mode voltages. A common-mode voltage is the voltage common to both inputs. The effectiveness of the ability of a difference amplifier to reject a common-mode signal is known as commonmode rejection ratio (CMRR). The CMRR of a difference amplifier is dominated by the tolerance of the resistors.
特長
- Input: ±1.25 V
- Output: ±2.5 V
- CMRR (min): 50 dB
- Supply:
- Vcc = 2.75 V
- Vee = -2.75 V
- Vref = 0 V
詳細はこちら
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技術資料
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