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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) 5.5 GBW (Typ) (MHz) 4000 BW @ Acl (MHz) 900 Acl, min spec gain (V/V) 4 Slew rate (Typ) (V/us) 1100 Vn at flatband (Typ) (nV/rtHz) 0.69 Vn at 1 kHz (Typ) (nV/rtHz) 0.69 Iq per channel (Typ) (mA) 15.5 Vos (offset voltage @ 25 C) (Max) (mV) 0.78 Rail-to-rail No Features Shutdown, Decompensated Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 87 Input bias current (Max) (pA) 23000 Offset drift (Typ) (uV/C) 0.45 Output current (Typ) (mA) 250 2nd harmonic (dBc) 88 3rd harmonic (dBc) 74 @ 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 WSON (NGQ) 8 9 mm² 3 x 3 open-in-new Find other High-speed op amps (GBW>=50MHz)

Features

  • Specified for VS = 5 V, RL = 100 Ω, AV = 10V/V
    WSON-8 Package, unless Specified. –3dB
    Bandwidth 900 MHz
  • Input Voltage Noise 0.69 nV/√Hz
  • Input Offset Voltage Max. Over Temperature
    ±0.8 mV
  • Slew Rate 1600 V/ µs
  • HD2 @ f = 1 MHz, 2VPP −90 dBc
  • HD3 @ f = 1 MHz, 2VPP −94 dBc
  • Supply Voltage Range 2.7 V to 5.5 V
  • Typical Supply Current 15.5 mA
  • Selectable Min. Gain ≥4 or ≥10 V/V
  • Enable Time: 75 ns
  • Output Current ±250 mA
  • WSON-8 and SOT-23-5 Packages
open-in-new Find other High-speed op amps (GBW>=50MHz)

Description

The LMH6629 is a high-speed, ultra-low noise amplifier designed for applications requiring wide bandwidth with high gain and low noise such as in communication, test and measurement, optical and ultrasound systems.

The LMH6629 operates on 2.7-V to 5.5-V supply with an input common mode range that extends below ground and outputs that swing to within 0.8 V of the rails for ease of use in single supply applications. Heavy loads up to ±250 mA can be driven by high-frequency large signals with the LMH6629’s –3dB bandwidth of 900 MHz and 1600 V/µs slew rate. The LMH6629 (WSON-8 package only) has user-selectable internal compensation for minimum gains of 4 or 10 controlled by pulling the COMP pin low or high, thereby avoiding the need for external compensation capacitors required in competitive devices. Compensation for the SOT-23-5 package is internally set for a minimum stable gain of 10 V/V. The WSON-8 package also provides the power-down enable/disable feature.

The low-input noise (0.69 nV/√Hz and 2.6 pA/√Hz), low distortion (HD2/HD3 = −90 dBc/−94 dBc) and ultra-low DC errors (800 µV VOS maximum over temperature, ±0.45 µV/°C drift) allow precision operation in both ac- and dc-coupled applications.

The LMH6629 is fabricated in Texas Instruments’ proprietary SiGe process and is available in a 3 mm × 3 mm 8-pin WSON package as well as the SOT-23-5 package.

open-in-new Find other High-speed op amps (GBW>=50MHz)
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Same functionality and pinout but is not an equivalent to the compared device:
LMH6624 ACTIVE Single/ Dual Ultra Low Noise Wideband Operational Amplifier For higher supply (12V), higher bandwidth (1.5 GHz), and gains>10V/V see LMH6624

Technical documentation

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
149
Description

The LMH6629 evaluation board is designed to aid in the characterization of Texas Instruments High Speed LMH6629 Low Noise Operational Amplifier. Use the evaluation board as a guide for high frequency layout and as a tool to aid in device testing and characterization.

EVALUATION BOARDS Download
document-generic User guide
25
Description

Texas Instruments offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Op Amp that are offered in the 5-/6-Pin SOT-23 package. This 4 layer board is designed to improve speed and reduce harmonic distortion by careful placement and routing of components and (...)

Features
  • Maximizes attainable speed and minimizes distortion products
  • Accommodates various high-speed Op Amp
  • Allows quick and easy evaluation
  • Serves as reference design to aid in high-speed PCB layout
  • Utilizes surface-mount components

NOTE: IC samples are not shipped with the Evaluation PCB, but may be requested (...)

Design tools & simulation

SIMULATION MODELS Download
SNOM133.ZIP (3 KB) - PSpice Model
SIMULATION MODELS Download
SNOM339.ZIP (8 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SNOM340.TSC (34 KB) - TINA-TI Reference Design
SIMULATION TOOLS 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 TOOLS 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 (...)
document-generic User guide
CALCULATION TOOLS 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 TOOLS 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.

(...)

Reference designs

REFERENCE DESIGNS Download
SONAR Receiver Path Sub-System Reference Design Using an 8 Channel Analog Front End
TIDA-00419 The TIDA-00419 TI Design is a demonstration of a SONAR receive path sub-system using the integrated analog front end (AFE) AFE5809. The AFE5809 features 8 channels of analog signal conditioning  (LNA+VCAT+PGA) and Digital Processing (ADC+Digital Demodulator) that brings a high level of system (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Reference Design for High-Gain Multistage Amplifier
TIDA-00066 Using the LMH6629 and OPA684 op amps, this reference design deals with the difficulties and limitations of developing very high gain, multistage amplifier circuits. Supported by a full scale application report including theory, simulations, board design and evaluation, this design can be easily (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options
WSON (NGQ) 8 View options

Ordering & quality

Support & training

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