Product details

Features Analog Gain Set, Differential to Single-ended conversion PGA/VGA VGA Number of channels 1 Vs (max) (V) 12 Vs (min) (V) 5 BW at Acl (MHz) 130 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1800 Gain (max) (dB) 40 Rating Catalog Operating temperature range (°C) -40 to 85
Features Analog Gain Set, Differential to Single-ended conversion PGA/VGA VGA Number of channels 1 Vs (max) (V) 12 Vs (min) (V) 5 BW at Acl (MHz) 130 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1800 Gain (max) (dB) 40 Rating Catalog Operating temperature range (°C) -40 to 85
SOIC (D) 14 51.9 mm² 8.65 x 6 TSSOP (PW) 14 32 mm² 5 x 6.4
  • VS = ±5V, TA = 25°C, RF = 1kΩ, RG = 174Ω, RL = 100Ω, AV = AV(MAX) = 10 Typical Values Unless Specified.
  • -3dB BW: 130MHz
  • Gain Control BW: 100MHz
  • Adjustment Range (Typical Over Temp): 70dB
  • Gain Matching (Limit): ±0.6dB
  • Slew Rate: 1800V/µs
  • Supply Current (No Load): 27mA
  • Linear Output Current: ±75mA
  • Output Voltage (RL = 100Ω): ±3.2V
  • Input Voltage Noise: 7.7nV/√Hz
  • Input Current Noise: 2.4pA/√Hz
  • THD (20MHz, RL = 100Ω, VO = 2VPP): −53dBc
  • Replacement for CLC520

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  • VS = ±5V, TA = 25°C, RF = 1kΩ, RG = 174Ω, RL = 100Ω, AV = AV(MAX) = 10 Typical Values Unless Specified.
  • -3dB BW: 130MHz
  • Gain Control BW: 100MHz
  • Adjustment Range (Typical Over Temp): 70dB
  • Gain Matching (Limit): ±0.6dB
  • Slew Rate: 1800V/µs
  • Supply Current (No Load): 27mA
  • Linear Output Current: ±75mA
  • Output Voltage (RL = 100Ω): ±3.2V
  • Input Voltage Noise: 7.7nV/√Hz
  • Input Current Noise: 2.4pA/√Hz
  • THD (20MHz, RL = 100Ω, VO = 2VPP): −53dBc
  • Replacement for CLC520

All trademarks are the property of their respective owners.

The LMH6502 is a wideband DC coupled differential input 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 more than 70dB for up to 10MHz.

Maximum gain is set by external components and the gain can be reduced all the way to cut-off. Power consumption is 300mW with a speed of 130MHz. Output referred DC offset voltage is less than 350mV over the entire gain control voltage range. Device-to-device Gain matching is within ±0.6dB at maximum gain. Furthermore, gain at any VG is tested and the tolerance is ensured. The output current feedback Op Amp allows high frequency large signals (Slew Rate = 1800V/μs) and can also drive heavy load current (75mA). Differential inputs allow common mode rejection in low level amplification or in applications where signals are carried over relatively long wires. For single ended operation, the unused input can easily be tied to ground (or to a virtual half-supply in single supply application). Inverting or non-inverting gains could be obtained by choosing one input polarity or the other.

To provide ease of use when working with a single supply, VG range is set to be from 0V to +2V relative to pin 11 potential (ground pin). In single supply operation, this ground pin is tied to a "virtual" half supply.

LMH6502 gain control is linear in dB for a large portion of the total gain control range. This makes the device suitable for AGC circuits among other applications. For linear gain control applications, see the LMH6503 datasheet. The LMH6502 is available in the SOIC and TSSOP package.

The LMH6502 is a wideband DC coupled differential input 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 more than 70dB for up to 10MHz.

Maximum gain is set by external components and the gain can be reduced all the way to cut-off. Power consumption is 300mW with a speed of 130MHz. Output referred DC offset voltage is less than 350mV over the entire gain control voltage range. Device-to-device Gain matching is within ±0.6dB at maximum gain. Furthermore, gain at any VG is tested and the tolerance is ensured. The output current feedback Op Amp allows high frequency large signals (Slew Rate = 1800V/μs) and can also drive heavy load current (75mA). Differential inputs allow common mode rejection in low level amplification or in applications where signals are carried over relatively long wires. For single ended operation, the unused input can easily be tied to ground (or to a virtual half-supply in single supply application). Inverting or non-inverting gains could be obtained by choosing one input polarity or the other.

To provide ease of use when working with a single supply, VG range is set to be from 0V to +2V relative to pin 11 potential (ground pin). In single supply operation, this ground pin is tied to a "virtual" half supply.

LMH6502 gain control is linear in dB for a large portion of the total gain control range. This makes the device suitable for AGC circuits among other applications. For linear gain control applications, see the LMH6503 datasheet. The LMH6502 is available in the SOIC and TSSOP package.

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* Data sheet LMH6502 Wideband, Low Power, Linear-in-dB Variable Gain Amplifier datasheet (Rev. D) 18 Mar 2013
EVM User's guide AN-1808 LMH730033 Evaluation Board (Rev. B) 01 May 2013

Design & development

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Evaluation board

LMH730033 — Evaluation Board for High-Speed Single Variable Gain Amplifier in the 14-Pin SOIC Package

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 14-Pin SOIC package. Resistors, capacitors, or any other surface-mount components can be easily mounted on this board in the desired circuit (...)

User guide: PDF
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Simulation model

LMH6502 PSPICE Model

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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
User guide: PDF
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SOIC (D) 14 View options
TSSOP (PW) 14 View options

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