Overview
The LMH6629SD/NOPB from Texas Instruments is a high-speed, ultra-low noise operational amplifier designed to excel in applications requiring wide bandwidth, high gain, and minimal distortion. This amplifier is particularly suited for use in communication systems, test and measurement equipment, optical devices, and ultrasound systems. It operates over a supply voltage range of 2.7V to 5.5V and features an input common mode range that extends below ground, making it versatile for various application setups. The LMH6629SD/NOPB is known for its high output swing capability, fast slew rate, and user-selectable internal compensation options, which simplify the design process by eliminating the need for external components.
Key Specifications
| Parameter | Value |
|---|---|
| Architecture | Voltage FB |
| Number of Channels | 1 |
| Total Supply Voltage (min) (V) | 2.7 |
| Total Supply Voltage (max) (V) | 5.5 |
| GBW (typ) (MHz) | 4000 |
| BW at Acl (MHz) | 900 |
| Acl, min spec gain (V/V) | 4 |
| Slew Rate (typ) (V/µs) | 1100 |
| Vn at flatband (typ) (nV√Hz) | 0.69 |
| Iq per channel (typ) (mA) | 15.5 |
| Vos (offset voltage at 25°C) (max) (mV) | 0.78 |
| CMRR (typ) (dB) | 87 |
| Input bias current (max) (pA) | 23000 |
| Offset drift (typ) (µV/°C) | 0.45 |
| Iout (typ) (mA) | 250 |
| 2nd harmonic (dBc) | 88 |
| 3rd harmonic (dBc) | 74 |
| Frequency of harmonic distortion measurement (MHz) | 1 |
| Operating temperature range (°C) | -40 to 125 |
| Package/Case | WSON8 |
Key Features
- Operating Frequency up to 2.4 GHz
- Precision Current Limiting 20 mA
- Differential Input Stage with High Common-Mode Rejection Ratio (CMRR) of 130 dB
- Wide supply voltage range of 2.7V to 5.5V
- High output swing capability, extending to within 0.8V of the rails
- Fast slew rate of 1600 V/µs
- User-selectable internal compensation options for minimum gains of 4 or 10
- Low input noise of 0.69 nV/√Hz and low distortion (HD2/HD3 = −90 dBc/−94 dBc)
- Ultra-low DC errors with a maximum offset voltage of ±0.8 mV over temperature
- Shutdown feature with enable time of 75 ns
- Output current capability up to ±250 mA
Applications
- High-speed data acquisition
- Precision instrumentation
- Telecommunications
- Audio equipment
- ADC drivers
- Active filter circuits
- Precision amplifiers
- RF/IF amplifiers
- Active loop filters
- Communication systems
- Optical devices
- Ultrasound equipment
Q & A
- What is the operating frequency range of the LMH6629SD/NOPB?
The LMH6629SD/NOPB operates up to a frequency of 2.4 GHz.
- What is the supply voltage range for the LMH6629SD/NOPB?
The supply voltage range is from 2.7V to 5.5V.
- What is the slew rate of the LMH6629SD/NOPB?
The slew rate is typically 1600 V/µs.
- What is the input noise of the LMH6629SD/NOPB?
The input noise is 0.69 nV/√Hz.
- Does the LMH6629SD/NOPB have a shutdown feature?
Yes, it has a shutdown feature with an enable time of 75 ns.
- What is the output current capability of the LMH6629SD/NOPB?
The output current capability is up to ±250 mA.
- What is the common-mode rejection ratio (CMRR) of the LMH6629SD/NOPB?
The CMRR is 130 dB for the differential input stage.
- In what package is the LMH6629SD/NOPB available?
The LMH6629SD/NOPB is available in an 8-pin WSON (NGQ) package.
- What are some typical applications of the LMH6629SD/NOPB?
Typical applications include high-speed data acquisition, precision instrumentation, telecommunications, audio equipment, and more.
- What is the operating temperature range of the LMH6629SD/NOPB?
The operating temperature range is from -40°C to 125°C.
