Datasheet AD9201 (Analog Devices)

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Dual Channel, 20 MHz 10-Bit Resolution CMOS ADC AD9201 FEATURES FUNCTIONAL BLOCK DIAGRAM Complete Dual Matching ADCs AVDD AVSS CLOCK DVDD DVSS Low Power Dissipation: 215 mW (+3 V Supply) Single Supply: 2.7 V to 5.5 V IINA I "I" ADC AD9201 SLEEP Differential Nonlinearity Error: 0.4 LSB REGISTER IINB SELECT On-Chip Analog Input Buffers IREFB REFERENCE On-Chip Reference BUFFER IREFT Signal-to-Noise Ratio: 57.8 dB THREE- QREFB ASYNCHRONOUS STATE DATA Over Nine Effective Bits QREFT MULTIPLEXER OUTPUT 10 BITS BUFFER Spurious-Free Dynamic Range: –73 dB VREF 1V No Missing Codes Guaranteed REFSENSE CHIP 28-Lead SSOP QINB SELECT Q "Q" ADC REGISTER QINA PRODUCT DESCRIPTION PRODUCT HIGHLIGHTS
The AD9201 is a complete dual channel, 20 MSPS, 10-bit 1. Dual 10-Bit, 20 MSPS ADCs CMOS ADC. The AD9201 is optimized specifically for applica- A pair of high performance 20 MSPS ADCs that are opti- tions where close matching between two ADCs is required (e.g., mized for spurious free dynamic performance are provided for I/Q channels in communications applications). The 20 MHz encoding of I and Q or diversity channel information. sampling rate and wide input bandwidth will cover both narrow- 2. Low Power band and spread-spectrum channels. The AD9201 integrates two Complete CMOS Dual ADC function consumes a low 10-bit, 20 MSPS ADCs, two input buffer amplifiers, an internal 215 mW on a single supply (on 3 V supply). The AD9201 voltage reference and multiplexed digital output buffers. operates on supply voltages from 2.7 V to 5.5 V. Each ADC incorporates a simultaneous sampling sample-and- 3. On-Chip Voltage Reference hold amplifier at its input. The analog inputs are buffered; no The AD9201 includes an on-chip compensated bandgap external input buffer op amp will be required in most applica- voltage reference pin programmable for 1 V or 2 V. tions. The ADCs are implemented using a multistage pipeline architecture that offers accurate performance and guarantees no 4. On-chip analog input buffers eliminate the need for external missing codes. The outputs of the ADCs are ported to a multi- op amps in most applications. plexed digital output buffer. 5. Single 10-Bit Digital Output Bus The AD9201 is manufactured on an advanced low cost CMOS The AD9201 ADC outputs are interleaved onto a single process, operates from a single supply from 2.7 V to 5.5 V, and output bus saving board space and digital pin count. consumes 215 mW of power (on 3 V supply). The AD9201 input 6. Small Package structure accepts either single-ended or differential signals, The AD9201 offers the complete integrated function in a providing excellent dynamic performance up to and beyond compact 28-lead SSOP package. its 10 MHz Nyquist input frequencies. 7. Product Family The AD9201 dual ADC is pin compatible with a dual 8-bit ADC (AD9281) and has a companion dual DAC product, the AD9761 dual DAC. REV. D Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its
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