OPA657
- High Gain Bandwidth Product: 1.6 GHz
- High Bandwidth 275 MHz (G = 10)
- Slew Rate 700 V/µs (G = 10, 1-V Step)
- Available in High Grade With Improved DC
Specifications - Operating Temperature Range: –40°C to 85°C
- Low-Input Offset Voltage: ±250 µV
- Low-Input Bias Current: 2 pA
- Low-Input Voltage Noise: 4.8 nV/√Hz
- High-Output Current: 70 mA
- Fast Overdrive Recovery
The OPA657 device combines a high-gain bandwidth, low-distortion, voltage-feedback operational amplifier with a low-voltage noise JFET-input stage to offer a very high dynamic range amplifier for high-precision ADC (analog-to-digital converter) driving or wideband transimpedance applications. Photodiode applications see improved noise and bandwidth using this decompensated, high-gain bandwidth amplifier.
Very low level signals can be significantly amplified in a single OPA657 gain stage with exceptional bandwidth and accuracy. Having a high 1.6-GHz gain bandwidth product gives greater than 10-MHz signal bandwidths up to gains of 160 V/V (44 dB). The very low input bias current and capacitance supports this performance even for relatively high source impedances.
Broadband photodetector applications benefit from the low-voltage noise JFET inputs for the OPA657. The JFET input contributes virtually no current noise while for broadband applications, a low voltage noise is also required. The low 4.8 nV/√Hz input voltage noise provides exceptional input sensitivity for higher bandwidth applications. The example shown below gives a total equivalent input noise current of 1.8 pA/√Hz over a 10-MHz bandwidth.
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设计和开发
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DEM-OPA-SO-1A — 采用 SO-8 封装的单路运算放大器评估模块
The DEM-OPA-SO-1A demonstration fixture helps designers evaluate the operation and performance of TI's High Speed, Wide Bandwidth Operational Amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead SOIC (D) package.
DEM-OPA-SOT-1A — 采用 5 引脚和 6 引脚 SOT-23 封装的单路运算放大器评估模块
DEM-OPA-SOT-1A 是一款用于评估高速高带宽运算放大器运行情况和性能的演示板。这款未组装的 PC 板与采用 small-outline transistor (SOT) DBV 封装的产品兼容。
ANALOG-ENGINEER-CALC — 模拟工程师计算器
VOLT-DIVIDER-CALC — 分压器确定一组分压电阻
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封装 | 引脚数 | 下载 |
---|---|---|
SOIC (D) | 8 | 了解详情 |
SOT-23 (DBV) | 5 | 了解详情 |
订购和质量
- RoHS
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- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 认证摘要
- 持续可靠性监测