Overview
The OPA2674IDRG4, produced by Texas Instruments, is a dual wideband, high output current operational amplifier. This device is specifically designed to meet the high output current and low distortion requirements of emerging xDSL and Power Line Modem driver applications. Operating on a single +12V supply, it consumes a low quiescent current while delivering a high output current, making it suitable for demanding applications such as ADSL CPE and VDSL line drivers.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Units |
|---|---|---|---|---|
| Small-Signal Bandwidth (G = +1) | 250 MHz | - | - | MHz |
| Small-Signal Bandwidth (G = +4) | 168 MHz | - | - | MHz |
| Output Current | 500 mA | 380 mA | - | mA |
| Output Voltage Swing (No Load) | - | ±5.1 V | - | V |
| Output Voltage Swing (RL = 100Ω) | - | ±5.0 V | - | V |
| Slew Rate | 2000 V/µs | - | - | V/µs |
| Quiescent Current (VS = ±6V, Both Channels) | 18 mA | 16.0 mA | 19.2 mA | mA |
| Power-Supply Rejection Ratio (PSRR) | - | 56 dB | - | dB |
| Operating Temperature Range | - | -40°C to +85°C | - | °C |
Key Features
- High output current of up to 500mA to support demanding applications.
- Low harmonic distortion, with < −85dBc at peak upstream power levels for full rate ADSL.
- High slew rate of 2000V/µs.
- Flexible power control in the SO-14 package, allowing for four quiescent power settings: full power, power cutback, idle state, and shutdown.
- Unity-gain stable with a bandwidth of 250MHz (G = +1) and 220MHz (G = +4).
- Low supply current of 18mA per channel.
- Support for single +12V, +5V, or dual ±5V supplies.
Applications
- Power Line Modem drivers.
- xDSL Line drivers.
- Cable Modem drivers.
- Matched I/Q channel amplifiers.
- Broadband video line drivers.
- ARB line drivers.
- High capacitive load drivers.
Q & A
- What is the typical small-signal bandwidth of the OPA2674IDRG4 at a gain of +1? The typical small-signal bandwidth at a gain of +1 is 250 MHz.
- What is the maximum output current of the OPA2674IDRG4? The maximum output current is up to 500mA.
- What is the slew rate of the OPA2674IDRG4? The slew rate is 2000V/µs.
- What are the power control options available in the SO-14 package? The SO-14 package offers four quiescent power settings: full power, power cutback, idle state, and shutdown.
- What is the typical quiescent current per channel for the OPA2674IDRG4? The typical quiescent current per channel is 18mA.
- What are the supported supply voltages for the OPA2674IDRG4? The device supports single +12V, +5V, or dual ±5V supplies.
- What is the operating temperature range of the OPA2674IDRG4? The operating temperature range is -40°C to +85°C.
- What are some of the key applications of the OPA2674IDRG4? Key applications include Power Line Modem drivers, xDSL Line drivers, Cable Modem drivers, and broadband video line drivers.
- How does the OPA2674IDRG4 handle harmonic distortion? The device exhibits low harmonic distortion, with < −85dBc at peak upstream power levels for full rate ADSL.
- What is the significance of the high output current in the OPA2674IDRG4? The high output current supports demanding applications such as ADSL CPE and VDSL line drivers.
