AD7389-4 Series

Differential Input, Quad, Internal Reference Simultaneous Sampling, 16-Bit SAR ADC

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

Differential Input, Quad, Internal Reference Simultaneous Sampling, 16-Bit SAR ADC

Part	Voltage - Supply, Analog (Max)	Voltage - Supply, Analog (Min)	Reference Type	Configuration	Ratio - ADC	Ratio - S/H	Number of A/D Converters	Architecture	Voltage - Supply, Digital (Min)	Voltage - Supply, Digital (Max)	Package / Case	Operating Temperature (Max)	Operating Temperature (Min)	Sampling Rate (Per Second)	Mounting Type	Data Interface	Package Width	Package Name	Package Length	Number of Inputs	Number of Bits	Input Type
Analog Devices Inc./Maxim Integrated AD7389-4BCPZ	3.6 V	3 V	Internal	ADC	4	0	4 count	SAR	3 V	3.6 V	24-UFQFN Exposed Pad CSP	125 °C	-40 °C	2 MHz	Surface Mount	SPI	4 mm	24-LFCSP	4 mm	4	16 bits	Differential
Analog Devices Inc./Maxim Integrated AD7389-4BCPZ-RL7	3.6 V	3 V	Internal	ADC	4	0	4 count	SAR	3 V	3.6 V	24-UFQFN Exposed Pad CSP	125 °C	-40 °C	2 MHz	Surface Mount	SPI	4 mm	24-LFCSP	4 mm	4	16 bits	Differential

Catalog

Differential Input, Quad, Internal Reference Simultaneous Sampling, 16-Bit SAR ADC

Description

The AD7389-4 a 16-bit, quad, simultaneous sampling, high speed, successive approximation register (SAR), analog-to-digital converter (ADC) that operates from a 3.0 V to 3.6 V power supply and features throughput rates up to 2 MSPS. The analog input type is differential, accepts a wide common-mode input voltage, and the analog inputs are sampled and converted on the falling edge ofCS.The AD7389-4 has 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. A buffered internal 2.5 V reference (10 ppm/°C) is included.The conversion process and data acquisition use standard control inputs allowing for 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 AD7389-4 is available in a 24-lead lead frame chip scale package (LFCSP) with operation specified from −40°C to +125°C.APPLICATIONSMotor control position feedbackMotor control current senseData acquisition systemsErbium doped fiber amplifier (EDFA) applicationsIn phase and quadrature demodulationPRODUCT HIGHLIGHTSQuad simultaneous sampling and conversion.Pin-compatible product family.High throughput rate, 2 MSPS at 16-bit.Space-saving, 4 mm × 4 mm LFCSP.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.