封裝資訊
封裝 | 針腳 SOT-SC70 (DCK) | 5 |
操作溫度範圍 (°C) -40 to 125 |
包裝數量 | 運送業者 250 | SMALL T&R |
OPA838 的特色
- Gain bandwidth product: 300MHz
- Very-low (trimmed) supply current: 950µA
- Bandwidth: 90MHz (AV = 6V/V)
- High full-power bandwidth: 45MHz, 4VPP
- Negative rail input, rail-to-rail output
- Single-supply operating range: 2.7V to 5.4V
- 25°C input offset: ±125µV (maximum)
- Input offset voltage drift: < ±1.6µV/°C (maximum)
- Input voltage noise: 1.8nV/√Hz (> 200Hz)
- Input current noise: 1pA/√Hz (> 2000Hz)
- < 1µA shutdown current for power savings
OPA838 的說明
The OPA838 decompensated voltage-feedback operational amplifier provides a high, 300MHz gain bandwidth product with 1.8nV/√Hz input noise voltage, requiring only a trimmed 0.95mA supply current. These features combine to provide an extremely power-efficient device for photodiode transimpedance designs and high-voltage gain stages, which require the lowest input voltage noise in signal receiver applications.
Operating at the minimum recommended noninverting gain of 6V/V results in a 90MHz, –3dB bandwidth. Extremely low input noise and offset voltage make the OPA838 an excellent choice for high gains. Even at a dc-coupled gain of 1000V/V, a 300kHz signal bandwidth is available with a maximum output offset voltage of ±125mV.
The single-channel OPA838 is available in 6-pin SOT-23, 6-pin SC70, and 8-pin X2QFN packages, all with a power shutdown feature. The OPA838 is also available in a 5-pin SC70 package.