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AMC7812B Datasheet(PDF) 4 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS |
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AMC7812B Datasheet(HTML) 4 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS |
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4 / 92 page  AMC7812B SBAS625A – SEPTEMBER 2013 – REVISED SEPTEMBER 2013 www.ti.com ELECTRICAL CHARACTERISTICS (continued) At TA = –40°C to +105°C, AVDD = DVDD = 4.5 V to 5.5 V, AVCC = +15 V, AGND = DGND = 0 V, IOVDD = 2.7 V to 5.5 V, internal 2.5-V reference, and the DAC output span = 0 V to 5 V, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INTERNAL REFERENCE Output voltage TA = +25°C, REF-OUT pin 2.495 2.5 2.505 V Output impedance 0.4 Ω Reference temperature coefficient TA = –40°C to +125°C 10 25 ppm/°C Output current (sourcing and sinking) ±5 mA TA = +25°C, f = 1 kHz 260 nV/ √Hz Output voltage noise f = 0.1 Hz to 10 Hz 13 µVPP ADC PERFORMANCE ADC DC ACCURACY (for AVDD = 5 V) Resolution 12 Bits INL Integral nonlinearity TA = –40°C to +125°C ±0.5 ±1 LSB DNL Differential nonlinearity TA = –40°C to +125°C ±0.5 ±1 LSB Single-Ended Mode Offset error ±1 ±3 LSB Offset error match ±0.4 LSB Gain error External reference ±1 ±5 LSB Gain error match ±0.4 LSB Differential Mode External reference, 0 V to (2 × VREF) mode, ±2 ±5 LSB VCM = 2.5 V Gain error External reference, 0 V to VREF mode, ±1 ±5 LSB VCM = 1.25 V Gain error match ±0.5 LSB 0 V to (2 × VREF) mode, VCM = 2.5 V ±1 ±3 LSB Zero code error External reference, 0 V to VREF mode, ±1 ±3 LSB VCM = 1.25 V Zero code error match ±0.5 LSB Common-mode rejection At dc, 0 V to (2 × VREF) mode 67 dB SAMPLING DYNAMICS External single analog channel, auto mode 500 kSPS Conversion rate External single analog channel, direct mode 167 kSPS Conversion time(3) External single analog channel 2 µs Autocycle update rate(3) All 16 single-ended inputs enabled 32 µs Throughput rate SPI clock, 12 MHz or greater, single channel 500 kSPS ANALOG INPUT(4) TA = –40°C to +125°C, single-ended, 0 V to VREF 0 VREF V TA = –40°C to +125°C, single-ended, 0 2 × VREF V 0 V to (2 × VREF) Full-scale input voltage TA = –40°C to +125°C, VIN+ – VIN–, fully-differential, –VREF +VREF V 0 V to VREF TA = –40°C to +125°C, VIN+ – VIN–, fully-differential, –2 × VREF 2 × VREF V 0 V to (2 × VREF) Absolute input voltage TA = –40°C to +125°C GND – 0.2 AVDD + 0.2 V 0 V to VREF mode 118 pF Input capacitance(3) 0 V to (2 × VREF) mode 73 pF DC input leakage current Unselected ADC input ±10 µA ADC REFERENCE INPUT Reference input voltage range TA = –40°C to +125°C 1.2 AVDD V Input current VREF = 2.5 V 145 µA (3) Sampled during initial release to ensure compliance; not subject to production testing. (4) VIN+ or VIN– must remain within GND – 0.2 V and AVDD + 0.2 V; see the Analog Inputs section. 4 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Product Folder Links: AMC7812B |
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