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Details for Texas Instruments


Fully-Differential, Dual, 1.1 GHz Digital Variable Gain Amplifier
Buy Directly from Texas Instruments (3608 in Stock)
$10.2900 per unit
Series Information for LMH2832IRHAT - Texas Instruments


  • feature
    Adjustable Power Consumption: u2013 90 mA to 108 mA per Channel
  • feature
    Channel-to-Channel Gain Matching: u00b10.05 dB
  • feature
    Channel-to-Channel Phase Matching: u00b10.1u00b0
  • feature
    Dual-Channel, Individual SPIu2122-Controlled DVGA
  • feature
    Flat Bandwidth Response: 300 MHz
  • feature
    Gain: u2013 30 dB to u20139 dB u2013 1-dB Steps u00b10.2 dB
  • feature
    Input Return Loss at 300 MHz:
  • feature
    Noise Figure (NF): u2013 6.5 dB (Max Gain) at 300 MHz, ZIN = 150 u03a9
  • feature
    Output Third-Order Intercept Point (OIP3): u2013 43 dBm at 300 MHz u2013 51 dBm at 200 MHz
  • feature
    Power-Saving, Power-Down Feature: u2013 IQ < 4.5 mA per Channel u2013 Power-Down Pin and SPI Programmability
  • feature
    Single 5-V Supply
  • feature
    u20133-dB Bandwidth: 1.1 GHz (Max Gain)


The LMH2832 is a high-linearity, dual-channel, digital variable-gain amplifier (DVGA) for high-speed signal chain and data-acquisition systems. The LMH2832 is optimized to provide high bandwidth, low distortion, and low noise, thus making the device ideally suited as a dual, 14-bit, analog-to-digital converter (ADC) driver. The device consists of one fixed-gain block and one variable attenuator consisting of a total gain of 30 dB with a maximum attenuation of 39 dB. The gain range is from 30 dB to –9 dB in 1-dB gain steps with a gain accuracy of ±0.2 dB. The input impedance can be easily matched to 50-Ω or 75-Ω systems using a 1:3-Ω or 1:2-Ω ratio balun, respectively. The LMH2832 is designed to drive general-purpose ADCs and also meets the requirements for both data over cable service interface specification (DOCSIS) 3.0 32 quadrature amplitude modulation (QAM) carriers and DOCSIS 3.1 wideband orthogonal frequency-division multiplexing (OFDM) systems. With excellent NF (6.5 dB) and linearity, the LMH2832 is designed to perform to within DOCSIS specifications. The quiescent current in the power-down state is less than 5 mA per channel with the typical current consumption during operation at 105 mA per channel.


No. of Channels:
No. of Amplifiers:
2 Amplifier
Operating Temperature Min:
Operating Temperature Max:
Supply Voltage Range:
4.75V to 5.25V
Amplifier Case Style:
No. of Pins:
Product Range:
LMH2832 Series
Automotive Qualification Standard:
RoHS Phthalates Compliant:
MSL 3 - 168 hours
No SVHC (27-Jun-2018)

Alternate Descriptions

Avnet America

SP Amp Variable Gain Amp Dual 5.25V 40-Pin VQFN T/R

Avnet America product

Avnet Europe

SP Amp Variable Gain Amp Dual 5.25V 40-Pin VQFN T/R

Avnet Europe product

Texas Instruments

Fully-Differential, Dual, 1.1 GHz Digital Variable Gain Amplifier

Texas Instruments product