器件名称: AD9042ST
功能描述: 12-Bit, 41 MSPS Monolithic A/D Converter
文件大小: 488.25KB 共24页
简 介:a
FEATURES 41 MSPS Minimum Sample Rate 80 dB Spurious-Free Dynamic Range 595 mW Power Dissipation Single +5 V Supply On-Chip T/H and Reference Twos Complement Output Format CMOS-Compatible Output Levels APPLICATIONS Cellular/PCS Base Stations GPS Anti-Jamming Receivers Communications Receivers Spectrum Analyzers Electro-Optics Medical Imaging ATE PRODUCT DESCRIPTION
AIN VOFFSET VREF ENCODE ENCODE
12-Bit, 41 MSPS Monolithic A/D Converter AD9042
FUNCTIONAL BLOCK DIAGRAM
AVCC DVCC A1 TH1 TH2 TH3 A2
ADC ADC DAC
+2.4V REFERENCE INTERNAL TIMING
AD9042
7
6 DIGITAL ERROR CORRECTION LOGIC MSB LSB
GND
D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
The AD9042 is a high speed, high performance, low power, monolithic 12-bit analog-to-digital converter. All necessary functions, including track-and-hold (T/H) and reference are included on chip to provide a complete conversion solution. The AD9042 runs off of a single +5 V supply and provides CMOS-compatible digital outputs at 41 MSPS. Designed specifically to address the needs of wideband, multichannel receivers, the AD9042 maintains 80 dB spurious-free dynamic range (SFDR) over a bandwidth of 20 MHz. Noise performance is also exceptional; typical signal-to-noise ratio is 68 dB. The AD9042 is built on Analog Devices’ high speed complementary bipolar process (XFCB) and uses an innovative multipass architecture. Units are packaged in a 28-pin DIP; this custom
AD9042AD PIN DESIGNATIONS
GND 1 DVCC 2 GND 3 ENCODE 4 ENCODE 5 GND 6 28 D11 (MSB) 27 ……
