AD7380 Series

4MSPS Dual Simultaneous Sampling, 16-BIT SAR ADC, Differential Input

Catalog

4MSPS Dual Simultaneous Sampling, 16-BIT SAR ADC, Differential Input

Part	Number of A/D Converters	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Number of Inputs	Number of Bits	Data Interface	Features	Sampling Rate (Per Second)	Operating Temperature [Max]	Operating Temperature [Min]	Configuration	Supplier Device Package	Mounting Type	Input Type	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Architecture	Package / Case	Ratio - S/H:ADC	Reference Type	Supplied Contents	Input Range	Power (Typ) @ Conditions	Utilized IC / Part
Analog Devices AD7380BCPZ-RL	2	3.6 V	3 V	2	16	Serial	Simultaneous Sampling	4M	125 °C	-40 °C	S/H-ADC	16-LFCSP (3x3)	Surface Mount	Differential	1.65 V	3.6 V	SAR	16-WFQFN Exposed Pad CSP	0:2	External Internal
Analog Devices EVAL-AD7380-4FMCZ	4				16	Serial SPI		4M													Board(s)	±VREF	163.1 mW	AD7380-4
Analog Devices AD7380BCPZ-RL7	2	3.6 V	3 V	2	16	Serial	Simultaneous Sampling	4M	125 °C	-40 °C	S/H-ADC	16-LFCSP (3x3)	Surface Mount	Differential	1.65 V	3.6 V	SAR	16-WFQFN Exposed Pad CSP	0:2	External Internal

Catalog

4MSPS Dual Simultaneous Sampling, 16-BIT SAR ADC, Differential Input

Key Features

• 16-bit/14-bit ADC family

• Dual simultaneous sampling

• Fully differential analog inputs

• 4 MSPS throughput conversion rate

• SNR (typical)92.5 dB, VREF= 3.3 V external at AD7380 (16-bit)85.4 dB, VREF= 3.3 V external at AD7381 (14-bit)101 dB with ×16 OSR

• 92.5 dB, VREF= 3.3 V external at AD7380 (16-bit)

• 85.4 dB, VREF= 3.3 V external at AD7381 (14-bit)

• 101 dB with ×16 OSR

• On-chip oversampling function

• Resolution boost function

• INL (maximum)2.0 LSBs at 16-bit1.0 LSB at 14-bit

• 2.0 LSBs at 16-bit

• 1.0 LSB at 14-bit

• 2.5 V internal reference

• High speed serial interface

• −40°C to +125°C operation

• 16-lead LFCSP, 3 mm × 3 mm

• Wide common-mode range

• Alert function

Description

The AD7380/AD7381 are a 16-bit and 14-bit pin-compatible family of dual simultaneous sampling, high speed, low power, 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 up to 4 MSPS. The analog input type is differential, accepts a wide common-mode input voltage, and is sampled and converted on the falling edge ofCS.An integrated on-chip oversampling block improves dynamic range and reduces noise at lower bandwidths. A buffered 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 simple interfacing to microprocessors or digital signal processors (DSPs). The device is compatible with 1.8 V, 2.5 V, and 3.3 V interfaces using the separate logic supply.The AD7380/AD7381 are available in a 16-lead lead frame chip scale package (LFCSP) with operation specified from −40°C to +125°C.Product highlightsDual simultaneous sampling and conversion with two complete ADC functions.Pin-compatible product family.High 4 MSPS throughput rate.Space saving 3 mm × 3 mm LFCSP.An integrated oversampling block to increase dynamic range, reduce noise, and reduce SCLK speed requirements.Differential analog inputs with wide common-mode range.Small sampling capacitor reduces amplifier drive burden.ApplicationsMotor control position feedbackMotor control current senseSonarPower qualityData acquisition systemsErbium doped fiber amplifier (EDFA) applicationsI and Q demodulation