AD7960

Data Sheet FEATURES Throughput: 5 MSPS 18-bit resolution with no missing codes Excellent ac and dc performance Dynamic range: 100 dB SNR: 99 dB THD: −117 dB INL: ±0.8 LSB (typical), ±2 LSB (maximum) DNL: ±0.5 LSB (typical), ±0.99 LSB (maximum) True differential analog input voltage range: ±4.096 V or ±5 V Low power dissipation 46.5 mW at 5 MSPS with external reference buffer (echoed clock mode) 64.5 mW at 5 MSPS with internal reference buffer (echoed clock mode) 39 mW at 5 MSPS with external reference buffer (self clocked mode, CNV± in CMOS mode) SAR architecture No latency/pipeline delay External reference options: 2.048 V buffered to 4.096 V (internal reference buffer), 4.096 V, and 5 V Serial LVDS interface Self clocked mode Echoed clock mode LVDS or CMOS option for conversion control (CNV± signal) Operating temperature range of −40°C to +85°C 32-lead, 5 mm × 5 mm LFCSP (QFN) APPLICATIONS Digital imaging systems Digital X-rays Computed tomography IR cameras MRI gradient control High speed data acquisition Spectroscopy Test equipment 18-Bit, 5 MSPS PulSAR Differential ADC AD7960 FUNCTIONAL BLOCK DIAGRAM REFIN REF VCM VDD1 VDD2 VIO IN+ IN– AD7960 ÷2 CLOCK CAP DAC LOGIC SAR SERIAL LVDS EN0 EN1 EN2 EN3 CNV+, CNV– D+, D– DCO+, DCO– CLK+, CLK– 09659-001 GND Figure 1. GENERAL DESCRIPTION The AD7960 is an 18-bit, 5 MSPS, charge redistribution successive approximation (SAR), analog-to-digital converter (ADC). The SAR architecture allows unmatched performance both in noise...