型号THS4631
品牌
分类高速运算放大器 (GBW ≥ 50MHz)
描述高速 FET 输入运算放大器
相关操作
产品概述

参数

Architecture FET / CMOS Input, Voltage FB
Number of channels 1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 10
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 32
GBW (typ) (MHz) 210
BW at Acl (MHz) 325
Acl, min spec gain (V/V) 1
Slew rate (typ) (V/µs) 1000
Vn at flatband (typ) (nV√Hz) 7
Vn at 1 kHz (typ) (nV√Hz) 7
Iq per channel (typ) (mA) 11.5
Vos (offset voltage at 25°C) (max) (mV) 0.5
Rail-to-rail No
Rating Catalog
Operating temperature range (°C) -40 to 85
CMRR (typ) (dB) 95
Input bias current (max) (pA) 100
Offset drift (typ) (µV/°C) 2.5
Iout (typ) (mA) 95
2nd harmonic (dBc) 76
3rd harmonic (dBc) 94
Frequency of harmonic distortion measurement (MHz) 5

封装 | 引脚 | 尺寸

HSOIC (DDA) 8 29.4 mm² 4.9 x 6
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9
SOIC (D) 8 29.4 mm² 4.9 x 6

特性

  • High Bandwidth:
    • 325 MHz in Unity Gain
    • 210 MHz Gain Bandwidth Product
  • High Slew Rate:
    • 900 V/µs (G = 2)
    • 1000 V/µs (G = 5)
  • Low Distortion of –76 dB, SFDR at 5 MHz
  • Maximum Input Bias Current: 100 pA
  • Input Voltage Noise: 7 nV/√Hz
  • Maximum Input Offset Voltage: 500 µV at 25°C
  • Low Offset Drift: 2.5 µV/°C
  • Input Impedance: 109 || 3.9 pF
  • Wide Supply Range: ± 5 V to ± 15 V
  • High Output Current: 95 mA

说明

The THS4631 is a high-speed, FET-input operational amplifier designed for applications requiring wideband operation, high-input impedance, and high-power supply voltages. By providing a 210-MHz gain bandwidth product, ±15-V supply operation, and 100-pA input bias current, the THS4631 is capable of simultaneous wideband transimpedance gain and large output signal swing. The fast 1000 V/µs slew rate allows for fast settling times and good harmonic distortion at high frequencies. Low current and voltage noise allow amplification of extremely low-level input signals while still maintaining a large signal-to-noise ratio.

The characteristics of the THS4631 make it ideally suited for use as a wideband photodiode amplifier. Photodiode output current is a prime candidate for transimpedance amplification as shown below. Other potential applications include test and measurement systems requiring high-input impedance, ADC and DAC buffering, high-speed integration, and active filtering.

The THS4631 is offered in an 8-pin SOIC (D), and the 8-pin SOIC (DDA) and MSOP (DGN) with PowerPAD™ package.