Overview
The LMH6643MAX is a dual-channel, low-power, voltage feedback operational amplifier produced by Texas Instruments (formerly National Semiconductor). This device is part of the LMH664X family, which offers high-speed, low-distortion, and high-output current capabilities. It is designed for a wide range of industrial and commercial applications, particularly where low power consumption and high performance are critical.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Texas Instruments (formerly National Semiconductor) |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Amplifier Type | Voltage Feedback |
| Number of Circuits | 2 |
| Output Type | Rail-to-Rail |
| Slew Rate | 130 V/µs |
| -3 dB Bandwidth | 130 MHz |
| Input Bias Current | 1.6 µA |
| Input Offset Voltage | 1 mV |
| Supply Current | 2.7 mA/amp |
| Output Current per Channel | ±75 mA |
| Supply Voltage Range | 2.7 V to 12.8 V, ±1.35 V to ±6.4 V |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- High-speed operation with a -3 dB bandwidth of 130 MHz and a slew rate of 130 V/µs.
- Low distortion, with a total harmonic distortion (THD) of -62 dBc at 5 MHz.
- High output current capability of approximately 75 mA per channel.
- Rail-to-rail output voltage swing, extending to within 40 mV of either supply rail.
- Input common mode voltage range extends to 0.5 V below V- and 1 V from V+.
- Fast settling time of 68 ns and overdrive recovery time of 100 ns.
- No output phase reversal with common mode voltage range exceeded.
- Output short circuit protected.
- Professional quality video performance with low differential gain (0.01%) and differential phase (0.01°) characteristics.
Applications
- ADC buffer applications.
- High-frequency filter applications.
- Video amplification and processing.
- Industrial and commercial applications requiring high-speed, low-distortion, and high-output current.
- Low-voltage applications where wide dynamic range is necessary.
Q & A
- What is the -3 dB bandwidth of the LMH6643MAX? The -3 dB bandwidth of the LMH6643MAX is 130 MHz.
- What is the slew rate of the LMH6643MAX? The slew rate of the LMH6643MAX is 130 V/µs.
- What is the output current capability of the LMH6643MAX? The LMH6643MAX can deliver approximately 75 mA per channel.
- What is the supply voltage range for the LMH6643MAX? The supply voltage range is from 2.7 V to 12.8 V, and ±1.35 V to ±6.4 V.
- What is the operating temperature range of the LMH6643MAX? The operating temperature range is from -40°C to 85°C.
- Does the LMH6643MAX have output short circuit protection? Yes, the LMH6643MAX has output short circuit protection.
- What is the settling time of the LMH6643MAX? The settling time is 68 ns.
- Is the LMH6643MAX suitable for video applications? Yes, it offers professional quality video performance with low differential gain and differential phase characteristics.
- What package type is the LMH6643MAX available in? The LMH6643MAX is available in an 8-SOIC package.
- Is the LMH6643MAX RoHS compliant? Yes, the LMH6643MAX is RoHS compliant.
