AD7694 Series

250 kSPS 16-BIT PulSAR®A/D Converter in µSOIC

Catalog

250 kSPS 16-BIT PulSAR®A/D Converter in µSOIC

Part	Architecture	Number of Bits	Mounting Type	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Number of A/D Converters	Reference Type	Configuration	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Data Interface	Ratio - S/H:ADC	Sampling Rate (Per Second)	Number of Inputs	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Input Type	Package / Case	Package / Case [custom]	Package / Case
Analog Devices AD7694BRMZ	SAR	16	Surface Mount	2.7 V	5.5 V	1	External	S/H-ADC	5.5 V	2.7 V	DSP SPI	1:1	250 k	1	85 °C	-40 °C	8-MSOP	Pseudo-Differential	8-MSOP 8-TSSOP	0.118 in	3 mm
Analog Devices AD7694BRMZRL7	SAR	16	Surface Mount	2.7 V	5.5 V	1	External	S/H-ADC	5.5 V	2.7 V	DSP SPI	1:1	250 k	1	85 °C	-40 °C	8-MSOP	Pseudo-Differential	8-MSOP 8-TSSOP	0.118 in	3 mm
Analog Devices AD7694ARMZ	SAR	16	Surface Mount	2.7 V	5.5 V	1	External	S/H-ADC	5.5 V	2.7 V	DSP SPI	1:1	250 k	1	85 °C	-40 °C	8-MSOP	Pseudo-Differential	8-MSOP 8-TSSOP	0.118 in	3 mm

Catalog

250 kSPS 16-BIT PulSAR®A/D Converter in µSOIC

Key Features

• 16 Bits Resolution

• Throughput: 250 kSPS

• INL: ±4 LSB Max

• Power Dissipation:800 µA @ 5V/100 kSPS540 µA @ 2.7V/100 kSPS

• Pseudo-Differential Analog Input Range: 0 V to VREFwith VREFup to VDD

• S/(N+D): 92 dB @ 20 kHz

• No Pipeline Delay

• Single Supply Operation 2.7 V or 5 V

• Serial Interface SPI®/QSPI™/µWire/DSP compatible

• µSOIC Package (µSO8)

• Improved 2nd Source of LTC1864 and LTC1864L

Description

The AD7694 is a 16-bit, 250 kSPS, charge redistribution successive-approximation Analog-to-Digital Converter which operates from a single power supply, VDDbetween 2.7 V to 5.25 V. It contains a very low power high-speed 16-bit sampling ADC with no missing codes (B grade), an internal conversion clock and a SPI compatible serial interface port. The part also contains a low noise, wide bandwidth, very short aperture delay track/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.Its power scales linearly with throughput.The AD7694 is housed in a 8-lead µSOIC with operation specified from –40°C to +85°C.APPLICATIONSBattery Powered Equipments:Medical instrumentsMobile communicationsPersonal digital assistantsData AcquisitionInstrumentationProcess Control