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THS1060PHP Datasheet(PDF) 3 Page - Texas Instruments |
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THS1060PHP Datasheet(HTML) 3 Page - Texas Instruments |
3 / 21 page THS1060 10-BIT 60 MSPS IF SAMPLING COMMUNICATIONS ANALOG-TO-DIGITAL CONVERTER SLAS212 – MARCH 2000 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Terminal Functions TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION AVDD 2, 5, 12 43, 45, 47 I Analog power supply AVSS 1, 11, 13, 41, 42, 44, 46 I Analog ground return for internal analog circuitry CLK+ 15 I Clock input CLK– 16 I Complementary clock input D9–D0 25–34 O Digital data output bits; LSB= D0, MSB = D9 (2s complement output format) DRVDD 24, 37, 38 I Digital output driver supply DRVSS 23, 39, 40 I Digital output driver ground return DVDD 17, 20, 22 I Positive digital supply DVSS 18, 19, 21 I Digital ground return VBG 10 O Band gap reference. Bypass to ground with a 1 µF and a 0.01 µF chip capacitor. VCM 48 O Common mode voltage output. Bypass to ground with a 0.1 µF and a 0.01 µF chip device capacitor. VIN+ 3 I Analog signal input VIN– 4 I Complementary analog signal input VREFIN – 7 I External reference input low VREFIN+ 8 I External reference input high VREFOUT+ 9 O Internal reference output. Compensate with a 1 µF and a 0.01 µF chip capacitor. VREFOUT – 6 O Internal reference output. Compensate with a 1 µF and a 0.01 µF chip capacitor. detailed description The THS1060 uses a differential pipeline architecture and assures no missing codes over the full operating temperature range. The device uses a 1 bit per stage architecture in order to achieve the highest possible bandwidth. The differential analog inputs are terminated with a 900 Ω resistor. The inputs are then fed to a unity gain buffer followed by the S/H (sample and hold) stage. This S/H stage is a switched capacitor op-amp based circuit, see Figure 3. The pipeline is a typical 1 bit per stage pipeline as shown in the functional block diagram. The digital output of the 10 stages and the last 1 bit flash are sent to a digital correction logic block which then outputs the final 10 bits. |
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