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AD872A

Analog Devices
Part Number AD872A
Manufacturer Analog Devices
Description Complete 12-Bit 10 MSPS Monolithic A/D Converter
Published Mar 23, 2005
Detailed Description a FEATURES Monolithic 12-Bit 10 MSPS A/D Converter Low Noise: 0.26 LSB RMS Referred-to-Input No Missing Codes Guaranteed...
Datasheet PDF File AD872A PDF File

AD872A
AD872A

Overview
a FEATURES Monolithic 12-Bit 10 MSPS A/D Converter Low Noise: 0.
26 LSB RMS Referred-to-Input No Missing Codes Guaranteed Differential Nonlinearity Error: 0.
5 LSB Signal-to-Noise and Distortion Ratio: 68 dB Spurious-Free Dynamic Range: 75 dB Power Dissipation: 1.
03 W Complete: On-Chip Track-and-Hold Amplifier and Voltage Reference Twos Complement Binary Output Data Out-of-Range Indicator 28-Lead Ceramic DIP or 44-Terminal Leadless Chip Carrier Package VINA VINB T/H Complete 12-Bit 10 MSPS Monolithic A/D Converter AD872A FUNCTIONAL BLOCK DIAGRAM AVDD AGND AVSS DVDD DGND *DRVDD *DRGND AD872A + A/D CLOCK 4 DAC T/H A/D 4 CORRECTION LOGIC REF IN REF OUT REF GND OTR MSB *MSB BIT2–BIT12 *OEN *ONLY AVAILABLE ON 44-TERMINAL SURFACE MOUNT PACKAGE +2.
5V REFERENCE OUTPUT BUFFERS DAC + T/H A/D 3 DAC 4 + A/D PRODUCT DESCRIPTION The AD872A is a monolithic 12-bit, 10 MSPS analog-to-digital converter with an on-chip, high performance track-and-hold amplifier and voltage reference.
The AD872A uses a multistage differential pipelined architecture with error correction logic to provide 12-bit accuracy at 10 MSPS data rates and guarantees no missing codes over the full operating temperature range.
The AD872A is a redesigned version of the AD872 which has been optimized for lower noise.
The AD872A is pin compatible 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 AD872A is ideally suited for high-end imaging applications.
In addition, the T/H’s high input impedance and fast settling characteristics allow the AD872A to easily interface with multiplexed systems that switch multiple signals through a single A/D converter.
The dynamic performance of the T/H also renders the AD872A suitable for sampling single channel inputs at frequencies up to and beyond the Nyquist rate.
The AD872A provides both reference output and reference input pins, allowing the onboard reference to serve as a system referen...


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