Overview
The LMH6624MA/NOPB, produced by Texas Instruments, is a single ultra-low noise wideband operational amplifier. This device is renowned for its exceptional performance, offering a wide gain bandwidth of 1.5 GHz and very low input noise of 0.92 nV/√Hz and 2.3 pA/√Hz. It features ultra-low DC errors, including an input offset voltage of 100 μV and a drift of ±0.1 μV/°C. These characteristics make the LMH6624MA/NOPB an ideal choice for applications requiring high precision and high frequency signal processing.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain Bandwidth | 1.5 GHz | |
| Input Voltage Noise | 0.92 nV/√Hz | |
| Input Current Noise | 2.3 pA/√Hz | |
| Input Offset Voltage (limit over temp) | 700 µV | |
| Input Offset Voltage Drift | ±0.1 μV/°C | |
| Rise Time (VO = 400 mV Step, 10% to 90%) | 4.1 ns | |
| Fall Time (VO = 400 mV Step, 10% to 90%) | 4.1 ns | |
| Settling Time (0.1%, VO = 2 VPP Step) | 20 ns | |
| 2nd Harmonic Distortion (fC = 10 MHz, VO = 1 VPP, RL 100 Ω) | -60 dBc | |
| 3rd Harmonic Distortion (fC = 10 MHz, VO = 1 VPP, RL 100 Ω) | -76 dBc | |
| Supply Voltage | ±6 V | |
| Package Type | SOIC-8 |
Key Features
- Ultra-low noise: 0.92 nV/√Hz input voltage noise and 2.3 pA/√Hz input current noise.
- Wide gain bandwidth: 1.5 GHz for single and 1.3 GHz for dual configurations.
- Ultra-low DC errors: 100 μV input offset voltage and ±0.1 μV/°C drift.
- Fast rise and fall times: 4.1 ns each for a 400 mV step.
- Low harmonic distortion: -60 dBc for 2nd harmonic and -76 dBc for 3rd harmonic at 10 MHz.
- Bias current cancellation for both non-inverting and inverting configurations to minimize bias current errors.
Applications
- Medical diagnostic ultrasound: The high frequency and low noise characteristics make it suitable for medical imaging applications.
- Magnetic tape and disk storage: Ideal for high-speed data storage and retrieval systems.
- Fiber-optics: Used in high-speed optical communication systems requiring low noise and high bandwidth.
- High-frequency signal processing: Suitable for applications requiring precise amplification of high-frequency signals.
Q & A
- What is the gain bandwidth of the LMH6624MA/NOPB?
The gain bandwidth of the LMH6624MA/NOPB is 1.5 GHz.
- What is the input voltage noise of the LMH6624MA/NOPB?
The input voltage noise is 0.92 nV/√Hz.
- What is the input offset voltage of the LMH6624MA/NOPB?
The input offset voltage is 100 μV with a drift of ±0.1 μV/°C.
- What is the rise and fall time of the LMH6624MA/NOPB for a 400 mV step?
The rise and fall times are both 4.1 ns.
- How does the LMH6624MA/NOPB handle bias current cancellation?
Bias current cancellation is achieved through specific resistor configurations for both non-inverting and inverting amplifier configurations.
- What are some typical applications of the LMH6624MA/NOPB?
Typical applications include medical diagnostic ultrasound, magnetic tape and disk storage, fiber-optics, and high-frequency signal processing.
- What is the package type of the LMH6624MA/NOPB?
The package type is SOIC-8.
- What is the supply voltage range for the LMH6624MA/NOPB?
The supply voltage range is ±6 V.
- How does the LMH6624MA/NOPB perform in terms of harmonic distortion?
The device has a 2nd harmonic distortion of -60 dBc and a 3rd harmonic distortion of -76 dBc at 10 MHz.
- What is the settling time of the LMH6624MA/NOPB for a 2 VPP step?
The settling time is 20 ns for a 0.1% settling criterion.
