Analog Devices Inc. AD7386/7387/7388 4-Channel, 4 MSPS, & SAR ADCs
Analog Devices Inc. AD7386/7387/7388 4-Channel, 4 MSPS, and Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC) operates from a 3V to 3.3V power supply. This dual simultaneous sampling ADC samples and converts single-ended analog input types on the falling edge of CS input. The AD7386/7387/7388 ADC features an on-chip sequencer and integrated on-chip oversampling blocks that improve dynamic range and reduce noise at lower bandwidths. This ADC is compatible with 1.8V, 2.5V, and 3.3V interfaces using a separate logic supply. The AD7386/7387/7388 comes in a 16-lead LFCSP package and operates at a temperature range from -40°C to +125°C. Typical applications include motor control position feedback, motor control current sense, sonars, power quality, and data acquisition systems.
Features
- 16-bit/14-bit/12-bit dual simultaneous sampling SAR ADC
- Single-ended analog inputs
- 4-channel with 2:1 multiplexers
- Channel sequencer mode
- High throughput rate of up to 4MSPS
- On-chip oversampling functions
- SNR (typical):
- 87.5dB, VREF = 3.3V external
- 93dB with OSR = 8, VREF = 2.5V internal
- ±1.5LSBs INL (typical)
- Resolution boost function
- 2.5V internal reference at 10ppm/°C (maximum)
- Alert function
- -40°C to +125°C temperature range
- 16-lead LFCSP, 3mm × 3mm
Applications
- Motor control position feedback
- Motor control current sense
- Sonars
- Power quality
- Data acquisition systems
- Erbium Doped Fiber Amplifier (EDFA) applications
- Inphase and quadrature demodulation
Block Diagram
Pin Configuration
Application Circuit
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