OPA837 器件是单位增益稳定电压反馈运算放大器，能够在所有精密运算放大器中提供最高的 MHz/mW 带宽。该 3.0mW 器件仅使用 600µA（通过单个 5V 电源）即能够以 1V/V 的增益提供 105MHz 带宽。±130µV（最大值）的极低修整偏移电压可提供典型值 (±1σ) 为 ±0.4µV/°C 的漂移。
OPA837 理论上非常适合单端逐次逼近型寄存器 (SAR) 模数转换器 (ADC) 驱动 应用，能够针对 3mW 静态功率提供最低的输入点噪声级别之一 (4.7nV/√Hz)。极高的 50MHz 增益带宽积可针对高频率提供低输出阻抗，这是在 SAR ADC 驱动器应用中提供快速充电电流 所必需的。该低动态输出阻抗还适用于采用精密 ADC 的 基准 缓冲器应用。单通道 OPA837 采用 6 引脚 SOT-23 封装（包含电源关断特性）和 5 引脚 SC70 封装。
OPA837 具有 –40°C 至 +125°C 的宽额定运行温度范围。
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| Architecture |
| Number of Channels (#) |
| Total Supply Voltage (Min) (+5V=5, +/-5V=10) |
| Total Supply Voltage (Max) (+5V=5, +/-5V=10) |
| BW @ Acl (MHz) |
| Acl, min spec gain (V/V) |
| Slew Rate (Typ) (V/us) |
| Vn at Flatband (Typ) (nV/rtHz) |
| Vn at 1kHz (Typ) (nV/rtHz) |
| Iq per channel (Typ) (mA) |
| Vos (Offset Voltage @ 25C) (Max) (mV) |
| Rail-to-Rail |
| Features |
| Rating |
| Operating Temperature Range (C) |
| Package Group |
| Package Size: mm2:W x L (PKG) |
| CMRR (Typ) (dB) |
| Input Bias Current (Max) (pA) |
| Offset Drift (Typ) (uV/C) |
| GBW (Typ) (MHz) |
| Output Current (Typ) (mA) |
| 2nd Harmonic (dBc) |
| 3rd Harmonic (dBc) |
| @ MHz |
| OPA837 | OPA2835 | OPA2836 | OPA2837 | OPA835 | OPA836 | OPA838 |
|---|---|---|---|---|---|---|
| Voltage FB | Bipolar Voltage FB | Bipolar Voltage FB | Voltage FB | Bipolar Voltage FB | Bipolar Voltage FB | Bipolar Voltage FB |
| 1 | 2 | 2 | 2 | 1 | 1 | 1 |
| 2.7 | 2.5 | 2.5 | 2.7 | 2.5 | 2.5 | 2.7 |
| 5.4 | 5.5 | 5.5 | 5.4 | 5.5 | 5.5 | 5.4 |
| 105 | 56 | 205 | 105 | 56 | 205 | 90 |
| 1 | 1 | 1 | 1 | 1 | 1 | 6 |
| 105 | 160 | 560 | 105 | 160 | 560 | 350 |
| 4.7 | 9.3 | 4.6 | 4.7 | 9.3 | 4.6 | 1.8 |
| 4.7 | 10 | 4.6 | 4.7 | 9.3 | 4.6 | 1.8 |
| 0.592 | 0.25 | 1 | 0.592 | 0.25 | 1 | 0.96 |
| 0.13 | 0.5 | 0.4 | 0.13 | 0.5 | 0.4 | 0.125 |
| In to V- Out | In to V- Out | In to V- Out | In to V- | In to V- Out | In to V- Out | In to V- Out |
| Small Size Shutdown | Shutdown | Small Size Shutdown | Small Size Shutdown | Small Size Shutdown | Small Size Shutdown | |
| Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| SC70 SOT-23 | QFN SOIC UQFN VSSOP | QFN SOIC UQFN VSSOP | QFN VSSOP | QFN SOT-23 | QFN SOT-23 | SC70 SC70 SOT-23 |
| 5SC70: 4 mm2: 2.1 x 2(SC70) 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 10QFN: 4 mm2: 2 x 2(QFN) 8SOIC: 29 mm2: 6 x 4.9(SOIC) 10UQFN: 4 mm2: 2 x 2(UQFN) 10VSSOP: 15 mm2: 4.9 x 3(VSSOP) | 10QFN: 4 mm2: 2 x 2(QFN) 8SOIC: 29 mm2: 6 x 4.9(SOIC) 10UQFN: 4 mm2: 2 x 2(UQFN) 10VSSOP: 15 mm2: 4.9 x 3(VSSOP) | 10QFN: 4 mm2: 2 x 2(QFN) 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) | 10QFN: 4 mm2: 2 x 2(QFN) 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 10QFN: 4 mm2: 2 x 2(QFN) 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 5SC70: 4 mm2: 2.1 x 2(SC70) 6SC70: 4 mm2: 2.1 x 2(SC70) 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) |
| 110 | 113 | 116 | 110 | 113 | 116 | 105 |
| 520000 | 400000 | 1000000 | 520000 | 400000 | 1000000 | 4400000 |
| 0.4 | 2.25 | 1.1 | 0.4 | 2.25 | 1.1 | 0.4 |
| 50 | 30 | 120 | 50 | 30 | 120 | 300 |
| 50 | 40 | 50 | 50 | 40 | 50 | 20 |
| 120 | 70 | 85 | 120 | 70 | 85 | -110 |
| 145 | 73 | 79 | 145 | 73 | 79 | -120 |
| 0.1 | 1 | 1 | 0.1 | 1 | 1 | 1 |
| 立即下单 | 立即下单 | 立即下单 | 无样片 | 立即下单 | 立即下单 | 立即下单 |
