AD7693 Series

16-Bit, ±0.5 LSB, 500 kSPS PulSAR®Differential A/D Converter in MSOP/QFN

Catalog

16-Bit, ±0.5 LSB, 500 kSPS PulSAR®Differential A/D Converter in MSOP/QFN

Part	Number of Inputs	Reference Type	Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Architecture	Package / Case	Package / Case [x]	Package / Case [x]	Number of Bits	Sampling Rate (Per Second)	Voltage - Supply, Digital	Supplier Device Package	Mounting Type	Voltage - Supply, Analog	Ratio - S/H:ADC	Input Type	Data Interface	Number of A/D Converters	Platform	Interconnect System	Contents	Function	Type
Analog Devices AD7693BRMZRL7	1	External	S/H-ADC	85 °C	-40 °C	SAR	10-MSOP 10-TFSOP	3 mm	0.118 in	16	500k	5 V	10-MSOP	Surface Mount	5 V	1:1	Differential	DSP SPI	1
Analog Devices AD7693BCPZRL	1	External	S/H-ADC	85 °C	-40 °C	SAR	10-VFDFN Exposed Pad CSP			16	500k	5 V	10-LFCSP-WD (3x3)	Surface Mount	5 V	1:1	Differential	DSP SPI	1
Analog Devices AD7693BCPZRL7	1	External	S/H-ADC	85 °C	-40 °C	SAR	10-VFDFN Exposed Pad CSP			16	500k	5 V	10-LFCSP-WD (3x3)	Surface Mount	5 V	1:1	Differential	DSP SPI	1
Analog Devices EVAL-AD7693-PMDZ																				Pmod™	Pmod	Board(s)	Analog to Digital Converter (ADC)	Data Acquisition

Catalog

16-Bit, ±0.5 LSB, 500 kSPS PulSAR®Differential A/D Converter in MSOP/QFN

Key Features

• 16-bit resolution with no missing codes

• Throughput: 500 kSPS

• INL/DNL: ±0.25 LSB typ, ±0.5 LSB max (±8 ppm of FSR)

• Dynamic range: 96.5 dB

• SINAD: 96 dB at 1 kHz

• THD: −120 dB at 1 kHz

• True differential analog input range: ±VREF0 V to VREFwith VREFup to VDD on both inputs

• No pipeline delay

• Single-supply 5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface

• Proprietary serial interface SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible

• Daisy-chain multiple ADCs, selectable busy indicator

• Power dissipation: 40 nJ/conversion

• 40 μW at 5 V/1 kSPS

• 4 mW at 5 V/100 kSPS

• 18 mW at 5 V/500 kSPS

• Standby current: 1 nA

• 10-lead package: MSOP (MSOP-8 size)

• Pin-for-pin compatible with the 16-bit AD7687 and AD7688 and the 18-bit AD7690 and AD7691

Description

The AD7693 is a 16-bit, successive approximation analog-to-digital converter (ADC) that operates from a single power supply, VDD. 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 reference voltage, VREF, is applied externally and can be set up to the supply voltage, VDD. On the CNV rising edge, it samples the voltage difference between the IN+ and IN− pins. The voltages on these pins swing in opposite phase between 0 V and VREFabout VREF/2.Its power scales linearly with throughput.Using the SDI input, the SPI-compatible serial interface also features the ability to daisy-chain several ADCs on a single 3-wire bus and provides an optional busy indicator. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate VIO supply.The AD7693 is housed in a 10-lead MSOP with operation specified from −40°C to +85°C.APPLICATIONSBattery-powered equipmentData acquisitionsSeismic data acquisition systemsDVMsInstrumentationMedical instruments