型号LMH6657
品牌
分类高速运算放大器 (GBW ≥ 50MHz)
描述270MHz 单电源、单路和双路运算放大器
相关操作
产品概述

参数

Architecture Voltage FB
Number of channels 1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12
GBW (typ) (MHz) 140
BW at Acl (MHz) 270
Acl, min spec gain (V/V) 1
Slew rate (typ) (V/µs) 700
Vn at flatband (typ) (nV√Hz) 11
Vn at 1 kHz (typ) (nV√Hz) 11
Iq per channel (typ) (mA) 6
Vos (offset voltage at 25°C) (max) (mV) 5
Rail-to-rail In to V-
Features Integrated Clamps
Rating Catalog
Operating temperature range (°C) -40 to 85
CMRR (typ) (dB) 84
Input bias current (max) (pA) 20000000
Offset drift (typ) (µV/°C) 2
Iout (typ) (mA) 45
2nd harmonic (dBc) 70
3rd harmonic (dBc) 57
Frequency of harmonic distortion measurement (MHz) 5

封装 | 引脚 | 尺寸

SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
SOT-SC70 (DCK) 5 2.5 mm² 2 x 1.25

特性

    VS = 5 V, TA = 25°C, RL = 100 Ω (Typical Values
    Unless Specified)

  • −3dB BW (AV = +1) 270 MHz
  • Supply Voltage Range 3 V to 12 V
  • Slew Rate, (VS = ±5 V) 700 V/µs
  • Supply Current 6.2 mA/amp
  • Output Current +80/−90 mA
  • Input Common-Mode Volt. 0.5 V Beyond V−, 1.7 V
    from V+
  • Output Voltage Swing (RL = 2 kΩ) 0.8 V from
    Rails
  • Input Voltage Noise 11 nV/√Hz
  • Input Current Noise 2.1 pA√Hz/
  • DG Error 0.03%
  • DP Error 0.10°
  • THD (5MHz) −55 dBc
  • Settling Time (0.1%) 37ns
  • Fully Characterized for 5 V, and ±5 V
  • Output Overdrive Recovery 18 ns
  • Output Short Circuit Protected(1)
  • No Output Phase Reversal With CMVR Exceeded

说明

The LMH6657 and LMH6658 devices are low-cost operational amplifiers that operate from a single supply with input voltage range extending below the V−. Based on easy to use voltage feedback topology and boasting fast slew rate (700 V/µs) and high speed (140 MHz GBWP), the LMH6657 (Single) and LMH6658 (dual) can be used in high speed large signal applications. These applications include instrumentation, communication devices, set-top boxes, and so forth.

With a –3dB BW of 100 MHz (AV = +2) and DG & DP of 0.03% & 0.10° respectively, the LMH6657 and LMH6658 are well suited for video applications. The output stage can typically supply 80 mA into the load with a swing of about 1 V from either rail.

For Industrial applications, the LMH6657 and LMH6658 are excellent cost-saving choices. Input referred voltage noise is low and the input voltage can extend below V− to ease amplification of low level signals that could be at or near the system ground. With low distortion and fast settling, LMH6657 and LMH6658 can provide buffering for A/D and D/A applications.

The LMH6657 and LMH6658 versatility and ease of use is extended even further by offering these high slew rate, high-speed operational amplifiers in miniature packages such as SOT-23-5, SC70, SOIC-8, and VSSOP-8.