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ADC12020CIVY/NOPB Datasheet(PDF) 3 Page - Texas Instruments |
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ADC12020CIVY/NOPB Datasheet(HTML) 3 Page - Texas Instruments |
3 / 30 page VA AGND ADC12020 www.ti.com SNAS186B – APRIL 2003 – REVISED MARCH 2013 Pin Descriptions and Equivalent Circuits Pin No. Symbol Equivalent Circuit Description ANALOG I/O Non-Inverting analog signal Input. With a 2.0V reference voltage, the 2 VIN+ differential input signal level is 2.0 VP-P centered on VCM. Inverting analog signal Input. With a 2.0V reference voltage the ground- referenced input signal level is 2.0 VP-P centered on VCM. This pin may be 3 VIN− connected to VCM for single-ended operation, but a differential input signal is required for best performance. Reference input. This pin should be bypassed to AGND with a 0.1 µF 1 VREF monolithic capacitor. VREF is 2.0V nominal and should be between 1.0V to 2.2V. 31 VRP 32 VRM These pins are high impedance reference bypass pins. Connect a 0.1 µF capacitor from each of these pins to AGND. DO NOT LOAD these pins. 30 VRN DIGITAL I/O Digital clock input. The range of frequencies for this input is 100 kHz to 30 10 CLK MHz (typical) with specified performance at 20 MHz. The input is sampled on the rising edge of this input. OE is the output enable pin that, when low, enables the TRI-STATE™ data 11 OE output pins. When this pin is high, the outputs are in a high impedance state. PD is the Power Down input pin. When high, this input puts the converter into the power down mode. When this pin is low, the converter is in the 8 PD active mode. Copyright © 2003–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: ADC12020 |
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