AD7386 Series

4-Channel, 4 MSPS, 16-Bit Dual Simultaneous Sampling SAR ADC

Catalog

4-Channel, 4 MSPS, 16-Bit Dual Simultaneous Sampling SAR ADC

Part	Supplier Device Package	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Package / Case	Data Interface	Ratio - S/H:ADC	Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Input Type	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Reference Type	Number of A/D Converters	Number of Bits	Mounting Type	Sampling Rate (Per Second)	Architecture	Number of Inputs	Features
Analog Devices AD7386BCPZ-RL7	16-LFCSP (3x3)	1.65 V	3.6 V	16-WFQFN Exposed Pad CSP	Serial	1:1	MUX-S/H-ADC	125 °C	-40 °C	Single Ended	3.6 V	3 V	Internal	2	16	Surface Mount	4M	SAR	4	Simultaneous Sampling
Analog Devices AD7386BCPZ-RL	16-LFCSP (3x3)	1.65 V	3.6 V	16-WFQFN Exposed Pad CSP	Serial	1:1	MUX-S/H-ADC	125 °C	-40 °C	Single Ended	3.6 V	3 V	Internal	2	16	Surface Mount	4M	SAR	4	Simultaneous Sampling

Key Features

• 16-bit, 14-bit, or 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 4 MSPS

• SNR (typical)

• 87.5 dB (AD7386), VREF= 3.3 V external

• 84 dB (AD7387), VREF= 3.3 V external

• 73.8 dB (AD7388)

• 93 dB with OSR = 8, VREF= 2.5 V internal (AD7386)

• On-chip oversampling functions

• INL (typical)

• ±1.5 LSB (AD7386)

• ±0.5 LSB (AD7387)

• ±0.2 LSB (AD7388)

• Resolution boost function

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

• Alert function

• −40°C to +125°C temperature range

• 16-lead, 3 mm × 3 mm LFCSP

Description

The AD7386/AD7387/AD7388are 16-bit, 14-bit, and 12-bit dual, simultaneous sampling, high speed, successive approximation register (SAR), analog-to-digital converters (ADCs) that operate from a 3.0 V to 3.6 V power supply and feature throughput rates of up to 4 MSPS. The analog input types are single-ended and are sampled and converted on the falling edge of CS.The AD7386/AD7387/AD7388 have an on-chip sequencer and integrated on-chip oversampling block to improve dynamic range and reduce noise at lower bandwidths. Abuffered internal 2.5 V reference is included. Alternatively, an external reference up to 3.3 V can be used. The conversion process and data acquisition use standard control inputs, allowing interfacing to microprocessors or digital signal processors (DSPs). The AD7386 is compatible with 1.8 V, 2.5 V, and 3.3 V interfaces by using the separate logic supply.The AD7386/AD7387/AD7388 are available in a 16-lead LFCSP with operation specified from −40°C to +125°C.Product Highlights4-channel, dual simultaneous sampling ADC.Pin-compatible product family.High 4 MSPS throughput rate.Space-saving 3 mm × 3 mm LFCSP.Integrated oversampling block to increase dynamic range and SNR and to reduce SCLK speed requirements.Single-ended analog inputs.Small sampling capacitor reduces amplifier drive burden.ApplicationsMotor control position feedbackMotor control current senseSonarPower qualityData acquisition systemsErbium doped fiber amplifier (EDFA) applicationsInphase and quadrature demodulation