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ADC128D818 bảng dữ liệu(PDF) 6 Page - Texas Instruments |
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ADC128D818 bảng dữ liệu(HTML) 6 Page - Texas Instruments |
6 / 46 page ADC128D818 SNAS483F – FEBRUARY 2010 – REVISED AUGUST 2015 www.ti.com 7.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted (1) MIN MAX UNIT Supply Voltage (V+) 3 5.5 V Voltage on SCL, SDA, A0, A1, INT –0.05 5.5 V Voltage on IN0-IN7, VREF –0.05 (V+ + 0.05) V Temperature Range for Electrical Characteristics –40 125 °C Operating Temperature –40 125 °C (1) All voltages are measured with respect to GND, unless otherwise specified. 7.4 Thermal Information ADC128D818 THERMAL METRIC(1) PW (TSSOP) UNIT 16 PINS RθJA Junction-to-ambient thermal resistance 130 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. 7.5 DC Electrical Characteristics The following specifications apply for 3 VDC ≤ V + ≤ 5.5 V DC , External VREF = 2.56 V, unless otherwise specified. All limits TA = TJ = 25°C unless otherwise specified (1). PARAMETER TEST CONDITIONS MIN(2) TYP(3) MAX(2) UNIT POWER SUPPLY CHARACTERISTICS 3.3 or 5 V V+ Supply Voltage TA = TJ = TMIN to TMAX 3 5.5 2.56 V External Reference Voltage TA = TJ = TMIN to TMAX 1.25 V+ VREF 2.56 V Internal Reference Voltage 23 ppm/°C Interface Inactive, V+ = 5.5 TA = TJ = TMIN to TMAX 0.74 mA V, Mode 2 Interface Inactive, V+ = 3.6 TA = TJ = TMIN to TMAX 0.56 mA V, Mode 2 Supply Current (see Power I+ Shutdown Mode, V+ = 5.5 Management). TA = TJ = TMIN to TMAX 0.65 mA V Shutdown Mode, V+ = 3.6 TA = TJ = TMIN to TMAX 0.48 mA V Deep Shutdown Mode(4). TA = TJ = TMIN to TMAX 10 µA TEMPERATURE-to-DIGITAL CONVERTER CHARACTERISTICS –40°C ≤ TA ≤ +125°C TA = TJ = TMIN to TMAX ±3 °C Temperature Error –25°C ≤ TA ≤ +100°C TA = TJ = TMIN to TMAX ±2 °C Resolution 0.5 °C ANALOG-to-DIGITAL CONVERTER CHARACTERISTICS n Resolution 12-bit with full-scale at VREF = 2.56 V. 0.625 mV (1) Each input and output is protected by an ESD structure to GND, as shown in the . Input voltage magnitude up to 0.3 V above V+ or 0.3 V below GND will not damage the ADC128D818. There are diodes that exist between some inputs and the power supply rails. Errors in the ADC conversion can occur if these diodes are forward biased by more than 50 mV. As an example, if V+ is 4.5 VDC, INx (where 0 ≤ x ≤ 7) must be ≤ 4.55 VDC to ensure accurate conversions. (2) Limits are ensured to AOQL (Average Outgoing Quality Level). (3) Typicals are at TJ = TA = 25°C and represent most likely parametric normal. (4) Limit is specified by characterization. 6 Submit Documentation Feedback Copyright © 2010–2015, Texas Instruments Incorporated Product Folder Links: ADC128D818 |
Số phần tương tự - ADC128D818_15 |
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Mô tả tương tự - ADC128D818_15 |
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