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AD7665

Analog Devices
Part Number AD7665
Manufacturer Analog Devices
Description 16-Bit 570 kSPS CMOS ADC
Published Mar 23, 2005
Detailed Description a FEATURES Throughput: 570 kSPS (Warp Mode) 500 kSPS (Normal Mode) INL: ؎ 2.5 LSB Max (؎0.0038% of Full Scale) 16-Bit Re...
Datasheet PDF File AD7665 PDF File

AD7665
AD7665

Overview
a FEATURES Throughput: 570 kSPS (Warp Mode) 500 kSPS (Normal Mode) INL: ؎ 2.
5 LSB Max (؎0.
0038% of Full Scale) 16-Bit Resolution with No Missing Codes S/(N+D): 90 dB Typ @ 180 kHz THD: –100 dB Typ @ 180 kHz Analog Input Voltage Ranges: Bipolar: ؎ 10 V, ؎5 V, ؎ 2.
5 V Unipolar: 0 V to 10 V, 0 V to 5 V, 0 V to 2.
5 V Both AC and DC Specifications No Pipeline Delay Parallel (8/16 Bits) and Serial 5 V/3 V Interface Single 5 V Supply Operation Power Dissipation 64 mW Typical 15 ␮W @ 100 SPS Power-Down Mode: 7 ␮W Max Package: 48-Lead Quad Flatpack (LQFP) Pin-to-Pin Compatible Upgrade of the AD7664/AD7663 APPLICATIONS Data Acquisition Communication Instrumentation Spectrum Analysis Medical Instruments Process Control GENERAL DESCRIPTION IND(4R) INC(4R) INB(2R) INA(R) INGND 16-Bit, 570 kSPS CMOS ADC AD7665* FUNCTIONAL BLOCK DIAGRAM AVDD AGND REF REFGND 4R 4R 2R R SWITCHED CAP DAC PARALLEL 16 INTERFACE PD RESET CLOCK CONTROL LOGIC AND CALIBRATION CIRCUITRY DVDD DGND AD7665 SERIAL PORT OVDD OGND SER/PAR BUSY DATA[15:0] CS RD OB/2C BYTESWAP WARP IMPULSE CNVST PRODUCT HIGHLIGHTS The AD7665 is a 16-bit, 570 kSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply.
It contains a high-speed 16-bit sampling ADC, a resistor input scaler which allows various input ranges, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports.
The AD7665 is hardware factory-calibrated and is comprehensively tested to ensure such ac parameters as signal-to-noise ratio (SNR) and total harmonic distortion (THD), in addition to the more traditional dc parameters of gain, offset, and linearity.
It features a very high sampling rate mode (Warp) and, for asynchronous conversion rate applications, a fast mode (Normal) and, for low power applications, a reduced power mode (Impulse) where the power is scaled with the throughput.
It is fabricated using Analog Devices’ high-performance, 0.
6 micron CMOS p...


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