Overview
The LMH3401IRMSR, produced by Texas Instruments, is a high-performance, 7-GHz, ultra-wideband, fixed-gain, fully-differential amplifier. This device is optimized for radio frequency (RF), intermediate frequency (IF), or high-speed, time-domain applications. It is particularly suited for dc- or ac-coupled applications that require single-ended to differential conversion, especially when driving an analog-to-digital converter (ADC). The LMH3401IRMSR features excellent single-ended to differential conversion performance from DC to 2 GHz and generates very low levels of second-order and third-order distortion.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bandwidth | 7 GHz | |
| HD2 at 10 MHz | –96 dBc | |
| HD3 at 10 MHz | –102 dBc | |
| HD2 at 1 GHz | –64 dBc | |
| HD3 at 1 GHz | –72 dBc | |
| OIP3 at 200 MHz | 45 dBm | |
| OIP3 at 1 GHz | 33 dBm | |
| OIP3 at 2 GHz | 24 dBm | |
| Single-Ended to Differential Voltage Gain | 16 dB | |
| Noise Figure at 200 MHz (RS = 50 Ω) | 9 dB | |
| Slew Rate | 18,000 V/µs | |
| Supply Voltage Range | 3.3 V to 5.0 V | |
| Supply Current | 55 mA | |
| Operating Temperature Range | –40°C to 85°C | |
| Package Type | 14-lead UQFN |
Key Features
- Excellent single-ended to differential conversion performance from DC to 2 GHz.
- Low levels of second-order and third-order distortion (HD2 and HD3).
- Best in class OIP3 performance to 2 GHz.
- Fixed single-ended to differential voltage gain of 16 dB.
- Noise figure of 9 dB at 200 MHz (RS = 50 Ω).
- High slew rate of 18,000 V/µs.
- Supports single-supply or split-supply operation.
- Power-down feature for power savings.
- On-chip resistors simplify PCB implementation.
- Common-mode reference input pin to align amplifier output common-mode with ADC input requirements.
Applications
- Test and measurement equipment.
- Broadband communications.
- High-speed data acquisition.
- GSPS ADC drivers.
- ADC drivers for high-speed data acquisition.
- ADC driver for 1-Gbps Ethernet over microwave.
- DAC buffers.
- Wideband gain stages.
- Single-ended to differential conversions.
- Level shifters.
Q & A
- What is the bandwidth of the LMH3401IRMSR?
The LMH3401IRMSR has a bandwidth of 7 GHz.
- What are the typical distortion levels of the LMH3401IRMSR at 1 GHz?
The LMH3401IRMSR has distortion levels of –64 dBc for HD2 and –72 dBc for HD3 at 1 GHz.
- What is the single-ended to differential voltage gain of the LMH3401IRMSR?
The single-ended to differential voltage gain is fixed at 16 dB.
- What is the noise figure of the LMH3401IRMSR at 200 MHz?
The noise figure is 9 dB at 200 MHz with RS = 50 Ω.
- What is the slew rate of the LMH3401IRMSR?
The slew rate is 18,000 V/µs.
- What are the supported supply voltage ranges for the LMH3401IRMSR?
The device supports supply voltages between 3.3 V and 5.0 V.
- Does the LMH3401IRMSR support single-supply or split-supply operation?
Yes, it supports both single-supply and split-supply operation.
- What is the operating temperature range of the LMH3401IRMSR?
The operating temperature range is –40°C to 85°C.
- What package type is the LMH3401IRMSR available in?
The device is available in a 14-lead UQFN package.
- Does the LMH3401IRMSR have a power-down feature?
Yes, it has a power-down feature for power savings.
