AD7660

a FEATURES Throughput: 100 kSPS INL: ؎3 LSB Max (؎ 0.0046% of Full-Scale) 16 Bits Resolution with No Missing Codes S/(N+D): 87 dB Min, 90 dB Typ @ 10 kHz THD: –96 dB Max @ 10 kHz Analog Input Voltage Range: 0 V to 2.5 V Both AC and DC Specifications No Pipeline Delay Parallel and Serial 5 V/3 V Interface Single 5 V Supply Operation 21 mW Typical Power Dissipation, 21 ␮W @ 100 SPS Power-Down Mode: 7 ␮ W Max Package: 48-Lead Quad Flatpack (LQFP) Pin-to-Pin Compatible with the AD7664 APPLICATIONS Data Acquisition Battery-Powered Systems PCMCIA Instrumentation Automatic Test Equipment Scanners Medical Instruments Process Control IN INGND 16-Bit, 100 kSPS CMOS ADC AD7660* FUNCTIONAL BLOCK DIAGRAM AVDD AGND REF REFGND DVDD DGND OVDD SERIAL PORT SWITCHED CAP DAC 16 DATA[15:0] BUSY PARALLEL INTERFACE PD RESET CLOCK CONTROL LOGIC AND CALIBRATION CIRCUITRY RD CS SER/PAR OB/2C OGND AD7660 CNVST GENERAL DESCRIPTION PRODUCT HIGHLIGHTS The AD7660 is a 16-bit, 100 kSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. The part contains an internal conversion clock, error correction circuits, and both serial and parallel system interface ports. The AD7660 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 is fabricated using Analog Devices’ high-...