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AFE031AIRGZT Datasheet(PDF) 9 Page - Texas Instruments |
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AFE031AIRGZT Datasheet(HTML) 9 Page - Texas Instruments |
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9 / 57 page  AFE031 www.ti.com SBOS531D – AUGUST 2010 – REVISED MAY 2012 ELECTRICAL CHARACTERISTICS: Two-Wire Interface At TJ = +25°C, PA_VS = 16 V, VAVDD = VDVDD = 3.3 V, and 10 kΩ connected to PA_ISET (pin 46), unless otherwise noted. AFE031 PARAMETER CONDITIONS MIN TYP MAX UNIT TWO-WIRE TRANSMITTER Frequency range(1) 50 kHz Leakage input current 0 ≤ VIN ≤ DVDD –1 0.01 1 μA (E_Tx_In, E_Tx_Clk) Input logic levels (E_Tx_In, E_Tx_Clk) High-level input voltage VIH 0.7 • DVDD V Low-level input voltage VIL 0.3 • DVDD V Output logic levels (E_Tx_Out) VO High-level output voltage IOH = 3 mA AVDD – 0.4 AVDD V H Low-level output voltage VOL IOL = –3 mA GND GND + 0.4 V TWO-WIRE RECEIVER Gain –4.5 dB Frequency range 300 kHz Max sink current 25 mA Max source current 25 mA Input terminal offset Referenced to VAVDD/2 –100 10 100 mV Input impedance 78 k Ω ZERO CROSSING DETECTOR Input voltage range AVDD – 0.4 AVDD + 0.4 V Input current range –10 +10 mA Input capacitance 3 pF Rising threshold 0.45 0.9 1.35 V Falling threshold 0.25 0.5 0.75 V Hysteresis 0.20 0.4 0.60 V Jitter 50 Hz, 240 VRMS 10 ns (1) The two-wire transmitter circuit is tested at Tx_CLK = 10 MHz. ELECTRICAL CHARACTERISTICS: Internal Bias Generator At TJ = +25°C, PA_VS = 16 V, VAVDD = VDVDD = 3.3 V, and 10 kΩ connected to PA_ISET (pin 46), unless otherwise noted. AFE031 PARAMETER CONDITIONS MIN TYP MAX UNIT REF1 (Pin 19) Bias voltage PA_VS/2 V Input resistance RI 4 k Ω Noise-reducing capacitor = 1 nF from Turn-on time 20 ms pin 19 to ground Noise-reducing capacitor = 1 nF from Turn-off time 20 ms pin 19 to ground REF2 (Pin 28) Bias voltage VAVDD/2 V Input resistance RI 4 k Ω Noise-reducing capacitor = 1 μF from Turn-on time 20 ms pin 28 to ground Noise-reducing capacitor = 1 μF from Turn-off time 20 ms pin 28 to ground Copyright © 2010–2012, Texas Instruments Incorporated 9 Product Folder Link(s): AFE031 |
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