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Product details

Parameters

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Features

  • VS = ±5V, TA = 25°C, RF = 1 KΩ, RG = 100Ω, RL = 100Ω, AV = AVMAX = 9.7V/V, Typical values unless specified.
  • −3 dB BW 150 MHz
  • Gain control BW 150 MHz
  • Adjustment range (<10 MHz) 80 dB
  • Output offset voltage ±55 mV
  • Gain matching (limit) ±0.42 dB
  • Supply voltage range 7V to 12V
  • Slew rate (inverting) 1500 V/μs
  • Supply Current (no load) 11 mA
  • Linear Output Current ±60 mA
  • Output Voltage Swing ±2.2V
  • Input Noise Voltage 4.4 nV/√Hz
  • Input Noise Current 2.6 pA/√Hz
  • THD (20 MHz, RL = 100Ω, VO = 2 VPP) −45 dBc
  • Replacement for CLC5523

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Description

The LMH6504 is a wideband DC coupled voltage controlled gain stage followed by a high-speed current feedback Op Amp which can directly drive a low impedance load. Gain adjustment range is 80 dB for up to 10 MHz by varying the gain control input voltage, VG.

Maximum gain is set by external components, and the gain can be reduced all the way to cut-off. Power consumption is 110 mW with a speed of 150 MHz and a gain control bandwidth (BW) of 150 MHz. Output referred DC offset voltage is less than 55 mV over the entire gain control voltage range. Device-to-device gain matching is within ±0.42 dB at maximum gain. Furthermore, gain is tested over a wide range. The output current feedback Op Amp allows high frequency large signals (Slew Rate > 1500 V/μs) and can also drive a heavy load current (60 mA). Near ideal input characteristics (i.e. low input bias current, low offset, low pin 3 resistance) enable the device to be easily configured as an inverting amplifier as well (see Application Information section for details).

To provide ease of use when working with a single supply, VG range is set to be from 0V to +2V relative to the ground pin potential (pin 4). VG input impedance is high in order to ease drive requirement. In single supply operation, the ground pin is tied to a "virtual" half supply.

LMH6504 gain control is linear in dB for a large portion of the total gain control range. This makes the device suitable for AGC applications. For linear gain control applications, see the LMH6503 data sheet.

The combination of minimal external components and small outline packages (SOIC and VSSOP) allows the LMH6504 to be used in space-constrained applications.

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Technical documentation

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Type Title Date
* Datasheet LMH6504 Wideband, Low Power, Variable Gain Amplifier datasheet (Rev. D) Mar. 18, 2013

Design & development

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Hardware development

EVALUATION BOARDS Download
10
Description

Texas Instruments offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Variable Gain Amplifier that are offered in the 8-Pin SOIC package. Resistors, capacitors, or any other surface-mount components can be easily mounted on this board in the desired circuit (...)

Features
  • Accommodates various high-speed Variable Gain Amplifier
  • Allows quick and easy evaluation
  • Serves as reference design to aid in high-speed PCB layout
  • Utilizes surface-mount components

 

Design tools & simulation

SIMULATION MODELS Download
SNOM151.ZIP (4 KB) - PSpice Model
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 (...)
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CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

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