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Product details

Parameters

Architecture Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Total supply voltage (Max) (+5V=5, +/-5V=10) 10 GBW (Typ) (MHz) 57 BW @ Acl (MHz) 130 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 135 Vn at flatband (Typ) (nV/rtHz) 17 Vn at 1 kHz (Typ) (nV/rtHz) 17 Iq per channel (Typ) (mA) 2.7 Vos (offset voltage @ 25 C) (Max) (mV) 5 Rail-to-rail In to V-, Out Rating Automotive Operating temperature range (C) -40 to 85 CMRR (Typ) (dB) 95 Input bias current (Max) (pA) 2600000 Offset drift (Typ) (uV/C) 5 Output current (Typ) (mA) 115 2nd harmonic (dBc) 80 3rd harmonic (dBc) 65 @ MHz 1 open-in-new Find other High-speed op amps (GBW>=50MHz)

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other High-speed op amps (GBW>=50MHz)

Features

  • (VS = ±5 V, TA = 25°C,
    RL = 2 kΩ, AV = +1. Typical Values
    Unless Unless Specified).
  • −3dB BW (AV = +1) 130 MHz
  • Supply Voltage Range 2.7 V to 10 V
  • Slew Rate, (AV = −1) 130V/µs1
  • Supply Current (no load) 2.7 mA/amp 
  • Output Short Circuit Current +115 mA/−145 mA
  • Linear Output Current ±75mA
  • Input Common Mode Voltage 0.5V Beyond V,
    1V from V+
  • Output Voltage Swing 40mV from Rails 
  • Input Voltage Noise (100kHz) 17nV/√Hz
  • Input Current Noise (100kHz) 0.9pA/√Hz
  • THD (5MHz, RL = 2 kΩ, VO =
    2VPP, AV = +2) −62 dBc
  • Settling Time 68ns
  • Fully Characterized for 3 V, 5 V, and ±5 V
  • Overdrive Recovery 100ns
  • Output Short Circuit Protected2
  • No Output Phase Reversal with CMVR Exceeded
  • LMH6643QMM and LMH6642QMF are AEC-Q100
    Grade 3 Qualified and are Manufactured on an
    Automotive Grade Flow
open-in-new Find other High-speed op amps (GBW>=50MHz)

Description

The LMH664X family true single supply voltage feedback amplifiers offer high speed (130 MHz), low distortion (−62 dBc), and exceptionally high output current (approximately 75 mA) at low cost and with reduced power consumption when compared against existing devices with similar performance.

Input common mode voltage range extends to 0.5 V below V and 1 V from V+. Output voltage range extends to within 40mV of either supply rail, allowing wide dynamic range especially desirable in low voltage applications. The output stage is capable of approximately 75 mA in order to drive heavy loads. Fast output Slew Rate (130 V/µs) ensures large peak-to-peak output swings can be maintained even at higher speeds, resulting in exceptional full power bandwidth of 40 MHz with a 3-V supply. These characteristics, along with low cost, are ideal features for a multitude of industrial and commercial applications.

Careful attention has been paid to ensure device stability under all operating voltages and modes. The result is a very well behaved frequency response characteristic (0.1dB gain flatness up the 12MHz under 150Ω load and AV = +2) with minimal peaking (typically 2dB maximum) for any gain setting and under both heavy and light loads. This along with fast settling time (68ns) and low distortion allows the device to operate well in ADC buffer, and high frequency filter applications as well as other applications.

This device family offers professional quality video performance with low DG (0.01%) and DP (0.01°) characteristics. Differential Gain and Differential Phase characteristics are also well maintained under heavy loads (150Ω) and throughout the output voltage range. The LMH664X family is offered in single (LMH6642) and dual (LMH6643).

open-in-new Find other High-speed op amps (GBW>=50MHz)
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Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION MODEL Download
SNOJ007.ZIP (2 KB) - Spice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
CALCULATION TOOL Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)
CALCULATION TOOL Download
Voltage Divider Determines A Set of Resistors for a Voltage Divider
VOLT-DIVIDER-CALC VOLT-DIVIDER-CALC quickly determines a set of resistors for a voltage divider. This KnowledgeBase Javascript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. This calculator can also be used to design non-inverting attentuation circuits.

(...)

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

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