AD7388-4 Series

Single-Ended Input, Quad, Simultaneous Sampling, 16-Bit/14-Bit/12-Bit, SAR ADC

Catalog

Single-Ended Input, Quad, Simultaneous Sampling, 16-Bit/14-Bit/12-Bit, SAR ADC

Part	Configuration	Supplier Device Package	Number of Bits	Number of A/D Converters	Input Type	Ratio - S/H:ADC	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Data Interface	Package / Case	Reference Type	Sampling Rate (Per Second)	Mounting Type	Number of Inputs	Features	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Architecture
Analog Devices AD7388-4BCPZ-RL	MUX-ADC	24-LFCSP (4x4)	12 bits	4	Single Ended	0:4	3.6 V	3 V	SPI	24-UFQFN Exposed Pad CSP	External Internal	4M	Surface Mount	8	Alert Function Configurable Resolution Multiplexed Input Oversampling Resolution Boost Simultaneous Sampling	3.6 V	3 V	125 °C	-40 °C	SAR

Catalog

Single-Ended Input, Quad, Simultaneous Sampling, 16-Bit/14-Bit/12-Bit, SAR ADC

Key Features

• 16-bit, 14-bit, and 12-bit ADC family

• Quad simultaneous sampling

• Single-ended analog inputs

• High throughput rate: 4 MSPS

• SNR (typical)84.7 dB (AD7386-4) at VREF= 3.3 V82.4 dB (AD7387-4) at VREF= 3.3 V73.7 dB (AD7388-4)92 dB with OSR = 8, VREF = 3.3 V (AD7386-4)

• 84.7 dB (AD7386-4) at VREF= 3.3 V

• 82.4 dB (AD7387-4) at VREF= 3.3 V

• 73.7 dB (AD7388-4)

• 92 dB with OSR = 8, VREF = 3.3 V (AD7386-4)

• On-chip oversampling function

• 2-bit resolution boost

• Out of range indicator (ALERT)

• INL (typical)±4 LSB (AD7386-4)±1 LSB (AD7387-4)±0.2 LSB (AD7388-4)

• ±4 LSB (AD7386-4)

• ±1 LSB (AD7387-4)

• ±0.2 LSB (AD7388-4)

• High-speed serial interface

• Temperature range: −40°C to +125°C

• 2.5 V internal reference at 10 ppm/°C (maximum)

• 24-lead LFCSP

Description

The AD7386-4/AD7387-4/AD7388-4 are 16-bit, 14-bit, and 12-bit compatible, quad, simultaneous sampling, high-speed, successive approximation register (SAR), analog-to-digital converters (ADCs) operating from a 3.0 V to 3.3 V power supply with throughput rates up to 4 MSPS. The single-ended analog input accepts voltage from 0 V to VREF, and is sampled and converted on the falling edge of CS.The AD7386-4/AD7387-4/AD7388-4 have on-chip oversampling blocks to improve dynamic range and reduce noise at lower bandwidths. The oversampling can boost up to two bits of added resolution. The REFIO pin can have a reference voltage (VREF) of 2.5 V to 3.3 V.The conversion process and data acquisition use standard control inputs, allowing easy interfacing to microprocessors or digital signal processors (DSPs). The conversion result can clock out simultaneously via 4-wire mode for faster throughput or via 1-wire serial mode when slower throughput is allowed. The device is compatible with 1.8 V, 2.5 V, and 3.3 V interfaces using the separate logic supply.The AD7386-4/AD7387-4/AD7388-4 are available in a 24-lead lead frame chip scale package (LFCSP) and operate over a temperature range of −40°C to +125°CAPPLICATIONSMotor control position feedbackMotor control current senseData acquisition systemsErbium doped fiber amplifier (EDFA) applicationsTraveling wave fault detectionIn-phase and quadrature demodulation