Datasheet AD7683 (Analog Devices)

16-Bit, 100 kSPS, Single-Ended PulSAR ADC in MSOP/QFN Data Sheet AD7683 FEATURES APPLICATION DIAGRAM 0.5V TO VDD 2.7V TO 5.5V 16-bit resolution with no missing codes Throughput: 100 kSPS INL: ±1 LSB typical, ±3 LSB maximum REF VDD Pseudo differential analog input range 0V TO VREF +IN DCLOCK 0 V to VREF with VREF up to VDD 3-WIRE SPI –IN AD7683 DOUT INTERFACE Single-supply operation: 2.7 V to 5.5 V GND CS
1
Serial interface SPI/QSPI/MICROWIRE/DSP compatible
00 1- 430
Power dissipation: 4 mW @ 5 V, 1.5 mW @ 2.7 V,
0 Figure 1.
150 μW @ 2.7 V/10 kSPS Standby current: 1 nA 8-lead packages: Table 1. MSOP, QFN (LFCSP)/SOT-23, 14-/16-/18-Bit MSOP PulSAR ADC 3 mm × 3 mm QFN (LFCSP) (SOT-23 size) Improved second source to ADS8320 and ADS8325 400 kSPS 100 250 to ≥1000 ADC Type kSPS kSPS 500 kSPS kSPS Driver APPLICATIONS
18-Bit True AD7691 AD7690 AD7982 ADA4941-1 Differential AD7984 ADA4841-1
Battery-powered equipment
16-Bit True AD7684 AD7687 AD7688 ADA4941-1
Data acquisition
Differential AD7693 ADA4841-1
Instrumentation
16-Bit AD7680 AD7685 AD7686 AD7980 ADA4841-1 Pseudo AD7683 AD7694
Medical instruments
Differential
Process control
14-Bit AD7940 AD7942 AD7946 ADA4841-1

Pseudo Differential
GENERAL DESCRIPTION
The AD7683 is a 16-bit, charge redistribution, successive analog input, +IN, between 0 V to REF with respect to a ground approximation, PulSAR® analog-to-digital converter (ADC) sense, –IN. The reference voltage, REF, is applied externally and that operates from a single power supply, VDD, between 2.7 V can be set up to the supply voltage. Its power scales linearly with and 5.5 V. It contains a low power, high speed, 16-bit sampling throughput. ADC with no missing codes (B grade), an internal conversion The AD7683 is housed in an 8-lead MSOP or an 8-lead QFN clock, and a serial, SPI-compatible interface port. The part also (LFCSP) package, with an operating temperature specified from contains a low noise, wide bandwidth, short aperture delay, −40°C to +85°C. track-and-hold circuit. On the CS falling edge, it samples an
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Document Outline Features Applications Application Diagram General Description Table of Contents Revision History Specifications Timing Specifications Timing and Circuit Diagrams Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configurations and Function Descriptions Terminology Typical Performance Characteristics Applications Information Circuit Information Converter Operation Transfer Functions Typical Connection Diagram Analog Input Driver Amplifier Choice Voltage Reference Input Power Supply Digital Interface Layout Evaluating the AD7683 Performance Outline Dimensions Ordering Guide