Texas Instruments' LMH3401 is a very high-performance, differential amplifier optimized for radio frequency (RF), intermediate frequency (IF), or high-speed, time-domain applications. This device is ideal for DC- or AC-coupled applications that require a single-ended to differential conversion when driving an analog-to-digital converter (ADC). The LMH3401 generates very low levels of second-order and third-order distortion when operating in single-ended-input to differential-output or differential-input to differential-output mode.
The on-chip resistors simplify printed circuit board (PCB) implementation and provide the highest performance over the usable bandwidth of 2 GHz. This performance makes the LMH3401 ideal for applications such as test and measurement, broadband communications, and high-speed data acquisition. A common-mode reference input pin is provided to align the amplifier output common-mode with the ADC input requirements. Use this device with power supplies between 3.3 V and 5.0 V; dual-supply operation is supported when required by the application.
| Features |
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- Excellent single-ended to differential conversion performance from DC to 2 GHz
- 7 GHz, –3 dB bandwidth
- Excellent HD2 and HD3 to 2 GHz:
- –96 (HD2), –102 (HD3) at 10 MHz
- –79 (HD2), –77 (HD3) at 500 MHz
- –64 (HD2), –72 (HD3) at 1 GHz
- –55 (HD2), –40 (HD3) at 2 GHz
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- Best in class OIP3 performance to 2 GHz:
- 45 dBm at 200 MHz
- 33 dBm at 1 GHz
- 24 dBm at 2 GHz
- Fixed single-ended to differential voltage gain: 16 dB
- Noise figure: 9 dB at 200 MHz (RS = 50 Ω)
- Slew rate: 18,000 V/µs
- Supports single-supply or split-supply operation
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| Applications |
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- GSPS ADC drivers
- ADC drivers for high-speed data acquisition
- ADC driver for 1 GBPS Ethernet over microwave
- DAC buffers
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- Wideband gain stages
- Single-ended to differential conversions
- Level shifters
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Texas Instruments' LMH3401 is a very high-performance, differential amplifier optimized for radio frequency (RF), intermediate frequency (IF), or high-speed, time-domain applications. This device is ideal for DC- or AC-coupled applications that require a single-ended to differential conversion when driving an analog-to-digital converter (ADC). The LMH3401 generates very low levels of second-order and third-order distortion when operating in single-ended-input to differential-output or differential-input to differential-output mode.
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