AD7665

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 comprehens...