Datasheet for AD7293:
- Manufacturer Part Number : AD7293
- Manufacturer : AD
- Description : 12-Bit Power Amplifier Current Controller with ADC, DACs, Temperature and Current Sensors
- Series : AD7293
- Reference Price : USD 7.592
- Our Price : We have a better price, contact us by email
- Product Type : Integrated/Special Purpose A/D Converters
- Function : A/D & D/A Converter Combinations
- Current Suggest : Recommended for New Designs
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : AD7293
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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- 4 closed-loop power amplifier (PA) drain current controllers
- Built-in PA protection, sequencing, and alert features
- Compatible with both depletion mode and enhancement mode power amplifiers
- Highly integrated
- 4 uncommitted 12-bit analog-to-digital converter (ADC) inputs
- ±0.5 LSB typical integral nonlinearity (INL)
- Eight 12-bit voltage digital-to-analog converters (DACs)
- 1.3 μs maximum settling
- 4 high-side current sense amplifiers, ±0.1% gain error
- 2 external temperature sensor inputs, ±1.1°C accuracy
- Internal temperature sensor, ±1.25°C accuracy
- 2.5 V on-chip reference
- 4 uncommitted 12-bit analog-to-digital converter (ADC) inputs
- Flexible monitoring and control ranges
- ADC input ranges: 0 V to 1.25 V, 0 V to 2.5 V, and 0 V to 5 V
- Bipolar DAC ranges: 0 V to +5 V, −4 V to +1 V, and −5 V to 0 V
- Bipolar DAC reset and clamping relative to VCLAMPx voltage
- Unipolar DAC ranges: 0 V to 5 V, 2.5 V to 7.5 V, and 5 V to 10 V
- Current sense gain: 6.25, 12.5, 25, 50, 100, and more
- Adjustable closed-loop setpoint ramp time
- High-side voltage current sensing
- 4 current sense inputs
- 4 V to AVSS + 60 V, ±200 mV input range
- 4 current sense inputs
- Small package and flexible interface
- Serial port interface (SPI) with VDRIVE supporting 1.8 V, 3 V, and 5 V interfaces
- 56-lead LFCSP
- Temperature range: −40°C to +125°C
The AD7293 is a PA drain current controller containing functionality for general-purpose monitoring and control of current, voltage, and temperature, integrated into a single chip solution with an SPI-compatible interface.
The device features a 4-channel, 12-bit successive approximation register (SAR) ADC, eight 12-bit DACs (four bipolar and four unipolar with output ranges that can be configured to shut down under external pin control), a ±1.25°C accurate internal temperature sensor, and eight general-purpose input/output (GPIO) pins.
The device also includes limit registers for alert functions and four high-side current sense amplifiers to measure current across external shunt resistors. These amplifiers can be optionally set to operate as part of four independent closed-loop drain current controllers.
A high accuracy 2.5 V internal reference is provided to drive theDACs and the ADC. The 12-bit ADC monitors and digitizes theinternal temperature sensor, and two inputs are included for theexternal diode temperature sensors.
Product Highlights
- Four independent closed-loop drain current controllers.
- Built-in monitoring, sequencing, and alert features.
- Compatible with both depletion mode and enhancement mode power amplifiers.
Applications
- GaN and GaAs power amplifier monitoring and controls
- Base station power amplifiers
- General-purpose system monitoring and controls
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
