型号OPA653
品牌
分类高速运算放大器 (GBW ≥ 50MHz)
描述500MHz、+2V/V 固定增益、JFET 输入放大器
相关操作
产品概述

参数

Architecture Fixed Gain/Buffer
Number of channels 1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 7
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 13
GBW (typ) (MHz) 500
BW at Acl (MHz) 500
Acl, min spec gain (V/V) 2
Slew rate (typ) (V/µs) 2675
Vn at flatband (typ) (nV√Hz) 6.1
Vn at 1 kHz (typ) (nV√Hz) 6.1
Iq per channel (typ) (mA) 32
Vos (offset voltage at 25°C) (max) (mV) 5
Rail-to-rail No
Rating Catalog
Operating temperature range (°C) -40 to 85
CMRR (typ) (dB) 66
Input bias current (max) (pA) 50
Offset drift (typ) (µV/°C) 10
Iout (typ) (mA) 70
2nd harmonic (dBc) 75
3rd harmonic (dBc) 96
Frequency of harmonic distortion measurement (MHz) 10

封装 | 引脚 | 尺寸

SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
VSON (DRB) 8 9 mm² 3 x 3

特性

  • HIGH BANDWIDTH: 500 MHz (G = +2 V/V)
  • HIGH SLEW RATE: 2675 V/µs (4-V Step)
  • EXCELLENT THD: –71dBc at 10 MHz
  • LOW INPUT VOLTAGE NOISE: 6.1 nV/√Hz
  • FAST OVERDRIVE RECOVERY: 8 ns
  • FAST SETTLING TIME (1% 4-V Step): 7.9 ns
  • LOW INPUT OFFSET VOLTAGE: ±1 mV
  • LOW INPUT BIAS CURRENT: ±10 pA
  • HIGH INPUT IMPEDANCE: 1012 ||2.5 pF
  • INTERNAL GAIN SETTING RESISTORS:
    G = +2 V/V or G = –1 V/V
  • HIGH OUTPUT CURRENT: 70 mA
  • APPLICATIONS
    • TEST AND MEASUREMENT FRONT-END
    • HIGH-INPUT IMPEDANCE PROBES
    • DATA ACQUISITION CARDS
    • OSCILLOSCOPE INPUT
    • ADC INPUT AMPLIFIER

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说明

The OPA653 combines a very wideband voltage-feedback operational amplifier with a JFET-input stage with internal gain setting resistors to achieve an ultra-high, dynamic-range amplifier for fixed gain of +2-V/V or –1-V/V applications.

The 500-MHz wide gain of +2-V/V bandwidth is complemented by a very high 2675-V/µs slew rate and fast settling time that make it ideal for time-domain and pulse-oriented applications.

Excellent –72-dBc THD distortion performance at 10 MHz makes the OPA653 an excellent choice for frequency-domain and FFT analysis applications.

Additionally, with the low 6.1-nV/√Hz voltage noise, low bias current, and high impedance JFET input, it supports very low noise, wideband, high input impedance applications. Examples include high-impedance probes, data acquisition cards, and oscilloscope front-ends.