Part	Architecture	Number of Bits	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Reference Type	Input Type	Number of Inputs	Ratio - S/H:ADC	Package / Case	Configuration	Mounting Type	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Number of A/D Converters	Sampling Rate (Per Second)	Data Interface	Package / Case [x]	Package / Case [x]	Supplied Contents	Power (Typ) @ Conditions	Utilized IC / Part	Input Range
Analog Devices AD7685CCPZRL7	SAR	16	10-LFCSP-WD (3x3)	85 °C	-40 °C	5.5 V	2.3 V	External	Pseudo-Differential	1	1:1	10-VFDFN Exposed Pad CSP	S/H-ADC	Surface Mount	5.5 V	2.3 V	1	250 k	DSP SPI
Analog Devices AD7685CCPZ-R2			10-LFCSP-WD (3x3)									10-VFDFN Exposed Pad CSP		Surface Mount
Analog Devices AD7685ARMZRL7	SAR	16	10-MSOP	85 °C	-40 °C	5.5 V	2.3 V	External	Pseudo-Differential	1	1:1	10-MSOP 10-TFSOP	S/H-ADC	Surface Mount	5.5 V	2.3 V	1	250 k	DSP SPI	3 mm	0.118 in
Analog Devices AD7685BCPZRL	SAR	16	10-LFCSP-WD (3x3)	85 °C	-40 °C	5.5 V	2.3 V	External	Pseudo-Differential	1	1:1	10-VFDFN Exposed Pad CSP	S/H-ADC	Surface Mount	5.5 V	2.3 V	1	250 k	DSP SPI
Analog Devices AD7685CCPZRL	SAR	16	10-LFCSP-WD (3x3)	85 °C	-40 °C	5.5 V	2.3 V	External	Pseudo-Differential	1	1:1	10-VFDFN Exposed Pad CSP	S/H-ADC	Surface Mount	5.5 V	2.3 V	1	250 k	DSP SPI
Analog Devices AD7685ARMZ	SAR	16	10-MSOP	85 °C	-40 °C	5.5 V	2.3 V	External	Pseudo-Differential	1	1:1	10-MSOP 10-TFSOP	S/H-ADC	Surface Mount	5.5 V	2.3 V	1	250 k	DSP SPI	3 mm	0.118 in
Analog Devices AD7685CRMZ	SAR	16	10-MSOP	85 °C	-40 °C	5.5 V	2.3 V	External	Pseudo-Differential	1	1:1	10-MSOP 10-TFSOP	S/H-ADC	Surface Mount	5.5 V	2.3 V	1	250 k	DSP SPI	3 mm	0.118 in
Analog Devices AD7685CRMZRL7	SAR	16	10-MSOP	85 °C	-40 °C	5.5 V	2.3 V	External	Pseudo-Differential	1	1:1	10-MSOP 10-TFSOP	S/H-ADC	Surface Mount	5.5 V	2.3 V	1	250 k	DSP SPI	3 mm	0.118 in
Analog Devices AD7685BRMZ	SAR	16	10-MSOP	85 °C	-40 °C	5.5 V	2.3 V	External	Pseudo-Differential	1	1:1	10-MSOP 10-TFSOP	S/H-ADC	Surface Mount	5.5 V	2.3 V	1	250 k	DSP SPI	3 mm	0.118 in
Analog Devices EVAL-AD7685CBZ		16															1	250 k	DSP MICROWIRE™ QSPI™ Serial SPI™			Board(s)	10 mW	AD7685	±VREF

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Description

General part information

AD7685 Series

The AD7685 is a 16-bit, charge redistribution successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDD, between 2.3 V to 5.5 V. It contains a low power, high speed, 16-bit sampling ADC with no missing codes, an internal conversion clock, and a versatile serial interface port. The part also contains a low noise, wide bandwidth, short aperture delay, track-and-hold circuit. On the CNV rising edge, it samples an analog input IN+ between 0 V to REF with respect to a ground sense IN−. The reference voltage, REF, is applied externally and can be set up to the supply voltage.Power dissipation scales linearly with throughput.The SPI-compatible serial interface also features the ability, using the SDI input, to daisy chain several ADCs on a single 3-wire bus or provides an optional BUSY indicator. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic using the separate supply VIO.The AD7685 is housed in a 10-lead MSOP or a 10-lead QFN (LFCSP) with operation specified from −40°C to +85°C.APPLICATIONSBattery-powered equipmentMedical instrumentsMobile communicationsPersonal digital assistants (PDAs)Data acquisitionInstrumentationProcess controls

Documents

Technical documentation and resources