AD871 Datasheet | Analog Devices

FEATURES Monolithic 12-Bit 5 MSPS A/D Converter Low Noise: 0.17 LSB RMS Referred to Input No Missing Codes Guaranteed Differential Nonlinearity Error: 0.5 LSB Signal-to-Noise and Distortion Ratio: 68 d B Spurious-Free Dynamic Range: 73 d B Power Dissipation: 1.03 W plete: On-Chip Track-and-Hold Amplifier and Voltage Reference Pin patible with the AD872 Twos plement Binary Output Data Out of Range Indicator 28-Lead Side Brazed Ceramic DIP or 44-Terminal Surface Mount Package VINA VINB plete 12-Bit 5 MSPS Monolithic A/D Converter AD871 FUNCTIONAL BLOCK DIAGRAM AVDD AGND AVSS DVDD DGND - DRVDD - DRGND AD871 T/H A/D 4 D/A T/H A/D 4 D/A T/H A/D 3 D/A A/D CLOCK REF IN REF OUT +2.5V REFERENCE CORRECTION LOGIC OUTPUT BUFFERS 12 REF OUT - OUTPUT ENABLE - MSB MSB- BIT 12 (LSB) - ONLY AVAILABLE ON 44 -TERMINAL SURFACE MOUNT PACKAGE PRODUCT DESCRIPTION The AD871 is a monolithic 12-bit, 5 MSPS analog-to-digital converter with an on-chip, high performance track-and-hold amplifier and voltage reference. The AD871 uses a multistage differential pipelined architecture with error correction logic to provide 12-bit accuracy at 5 MSPS data rates and guarantees no missing codes over the full operating temperature range. The AD871 is a redesigned variation of the AD872 12-bit, 10 MSPS ADC, optimized for lower noise in applications requiring sampling rates of 5 MSPS or less. The AD871 is pin patible with the AD872, allowing the parts to be used interchangeably as system requirements change. The low-noise input track-and-hold (T/H) of the AD871 is ideally suited for high-end imaging applications. In addition, the T/H’s high input impedance and fast settling characteristics allow the AD871 to easily interface with multiplexed systems that switch multiple signals through a single A/D converter. The dynamic performance of the input T/H also renders the AD871 suitable for sampling single channel inputs at frequencies up to and beyond the Nyquist rate. The AD871 provides both...