Overview
The LMH6321TSX/NOPB, produced by Texas Instruments, is a high-speed unity gain buffer designed for applications requiring high slew rates and wide bandwidth. This device is capable of slewing at 1800 V/µs and has a small signal bandwidth of 110 MHz while driving a 50 Ω load. It can continuously drive ±300 mA and is suitable for driving large capacitive loads without oscillation. The LMH6321 features an adjustable current limit, which can be set from 10 mA to 300 mA with a ±5 mA ±5% accuracy. This adjustability is achieved by using an external reference current set with a resistor. The device is available in space-saving 8-pin SO PowerPAD and 7-pin DDPAK power packages, enhancing heat sinking capabilities.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Slew Rate | - | - | 1800 | - | V/µs |
| Bandwidth | RL = 50 Ω, CL open | - | 110 | - | MHz |
| Output Current | Continuous | - | ±300 | - | mA |
| Supply Voltage Range | - | 5 | - | ±15 | V |
| Operating Temperature Range | - | -40 | - | 125 | °C |
| Input Offset Voltage | RL = 1 kΩ, RS = 0 V | ±2.5 | ±35 | ±52 | mV |
| Input Bias Current | VIN = 0 V, RL = 1 kΩ, RS = 0 V | ±2 | ±15 | ±17 | µA |
| Thermal Shutdown Temperature | - | - | 168 | - | °C |
Key Features
- High slew rate of 1800 V/µs
- Wide bandwidth of 110 MHz
- Continuous output current of ±300 mA
- Adjustable current limit from 10 mA to 300 mA with ±5 mA ±5% accuracy
- Wide supply voltage range from 5 V to ±15 V
- Wide operating temperature range from -40°C to +125°C
- High capacitive load drive capability
- Thermal shutdown error flag
- Available in 8-pin SO PowerPAD and 7-pin DDPAK power packages
Applications
- Line driver
- Pin driver
- Sonar driver
- Motor control
- Boosting the current output within the feedback loop of an operational amplifier
- Stand-alone buffer applications
Q & A
- What is the slew rate of the LMH6321?
The LMH6321 has a slew rate of 1800 V/µs.
- What is the bandwidth of the LMH6321?
The LMH6321 has a small signal bandwidth of 110 MHz while driving a 50 Ω load.
- What is the continuous output current capability of the LMH6321?
The LMH6321 can continuously drive ±300 mA.
- How is the current limit adjusted on the LMH6321?
The current limit is adjustable from 10 mA to 300 mA with a ±5 mA ±5% accuracy, set by an external reference current using a resistor.
- What are the available package options for the LMH6321?
The LMH6321 is available in 8-pin SO PowerPAD and 7-pin DDPAK power packages).
- What is the operating temperature range of the LMH6321?
The operating temperature range is from -40°C to +125°C).
- What is the thermal shutdown temperature of the LMH6321?
The thermal shutdown temperature is 168°C).
- Can the LMH6321 drive large capacitive loads?
Yes, the LMH6321 can drive large capacitive loads without oscillation).
- What are some common applications of the LMH6321?
Common applications include line drivers, pin drivers, sonar drivers, motor control, and boosting the current output within the feedback loop of an operational amplifier).
- What is the input offset voltage of the LMH6321?
The input offset voltage is ±35 mV (typical) under specified conditions).
