AD7684 Series

16-Bit, 100 kSPS PulSAR®, Differential ADC in MSOP

Catalog

16-Bit, 100 kSPS PulSAR®, Differential ADC in MSOP

Part	Configuration	Reference Type	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Supplier Device Package	Number of Inputs	Data Interface	Number of Bits	Architecture	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Mounting Type	Package / Case	Package / Case [custom]	Package / Case	Ratio - S/H:ADC	Number of A/D Converters	Sampling Rate (Per Second)	Input Type	Operating Temperature [Max]	Operating Temperature [Min]
Analog Devices AD7684BRMZRL7	S/H-ADC	External	5.5 V	2.7 V	8-MSOP	1	DSP SPI	16	SAR	2.7 V	5.5 V	Surface Mount	8-MSOP 8-TSSOP	0.118 in	3 mm	1:1	1	100k	Differential	85 °C	-40 °C
Analog Devices AD7684BRMZ	S/H-ADC	External	5.5 V	2.7 V	8-MSOP	1	DSP SPI	16	SAR	2.7 V	5.5 V	Surface Mount	8-MSOP 8-TSSOP	0.118 in	3 mm	1:1	1	100k	Differential	85 °C	-40 °C

Catalog

16-Bit, 100 kSPS PulSAR®, Differential ADC in MSOP

Key Features

• 16-bit resolution with no missing codes

• Throughput: 100 kSPS

• INL: ±1 LSB typical, ±3 LSB maximum

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

• Single-supply operation: 2.7 V to 5.5 V

• Standby current: 1 nA

• Serial interface SPI®-/QSPI-™/MICROWIRE-™/DSP-compatible

• Power dissipation4 mW @ 5 V1.5 mW @ 2.7 V150 μW @ 2.7 V/10 kSPS

• 8-lead MSOP package

Description

The AD7684 is a 16-bit, charge redistribution, successive approximation, PulSAR®analog-to-digital converter (ADC) that operates from a single power supply, VDD, between 2.7 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 serial, SPI-compatible interface port. The part also contains a low noise, wide bandwidth, short aperture delay, track-and-hold circuit. On theCSfalling edge, it samples the voltage difference between +IN and –IN pins. The reference voltage, REF, is applied externally and can be set up to the supply voltage. Its power scales linearly with throughput.The AD7684 is housed in an 8-lead MSOP, with an operating temperature specified from −40°C to +85°C.APPLICATIONSBattery-powered equipmentData acquisitionInstrumentationMedical instrumentsProcess control