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Details for LMH2832IRHAT by Texas Instruments
Semiconductors - ICs > Amplifiers & Comparators > Programmable Gain Amplifiers
VAR GAIN AMP DUAL 39DB 1.1GHZ VQFN40
LMH2832IRHAT image

LMH2832IRHAT by Texas Instruments

VAR GAIN AMP DUAL 39DB 1.1GHZ VQFN40
Features
Adjustable Power Consumption: u2013 90 mA to 108 mA per Channel
Channel-to-Channel Gain Matching: u00b10.05 dB
Channel-to-Channel Phase Matching: u00b10.1u00b0
Dual-Channel, Individual SPIu2122-Controlled DVGA
Flat Bandwidth Response: 300 MHz
Gain: u2013 30 dB to u20139 dB u2013 1-dB Steps u00b10.2 dB
Input Return Loss at 300 MHz:
Noise Figure (NF): u2013 6.5 dB (Max Gain) at 300 MHz, ZIN = 150 u03a9
Output Third-Order Intercept Point (OIP3): u2013 43 dBm at 300 MHz u2013 51 dBm at 200 MHz
Power-Saving, Power-Down Feature: u2013 IQ < 4.5 mA per Channel u2013 Power-Down Pin and SPI Programmability
Single 5-V Supply
u20133-dB Bandwidth: 1.1 GHz (Max Gain)
Part Information
LMH2832IRHAT image
RoHS Compliant
Description
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.
Specifications
No. of Channels:
2Channels
No. of Amplifiers:
2 Amplifier
Bandwidth:
1.1GHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Supply Voltage Range:
4.75V to 5.25V
Amplifier Case Style:
VQFN
No. of Pins:
40Pins
Product Range:
LMH2832 Series
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
SP Amp Variable Gain Amp Dual 5.25V 40-Pin VQFN T/R Avnet America
SP Amp Variable Gain Amp Dual 5.25V 40-Pin VQFN T/R Avnet Europe