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MCP4911 bảng dữ liệu(PDF) 6 Page - Microchip Technology |
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MCP4911 bảng dữ liệu(HTML) 6 Page - Microchip Technology |
6 / 50 page MCP4802/4812/4822 DS20002249B-page 6 2010-2015 Microchip Technology Inc. Output Amplifier Output Swing VOUT — 0.01 to VDD – 0.04 — V Accuracy is better than 1 LSb for VOUT = 10 mV to (VDD – 40 mV) Phase Margin PM — 66 — Degree (°) CL= 400 pF, RL = Slew Rate SR — 0.55 — V/µs Short Circuit Current ISC —17 — mA Settling Time tSETTLING — 4.5 — µs Within 1/2 LSb of final value from 1/4 to 3/4 full-scale range Dynamic Performance (Note 2) DAC-to-DAC Crosstalk — <10 — nV-s Major Code Transition Glitch — 45 — nV-s 1 LSb change around major carry (0111...1111 to 1000...0000 ) Digital Feedthrough — <10 — nV-s Analog Crosstalk — <10 — nV-s AC CHARACTERISTICS (SPI TIMING SPECIFICATIONS) Electrical Specifications: Unless otherwise indicated, VDD = 2.7V – 5.5V, TA= -40 to +125°C. Typical values are at +25°C. Parameters Sym Min Typ Max Units Conditions Schmitt Trigger High-Level Input Voltage (All digital input pins) VIH 0.7 VDD —— V Schmitt Trigger Low-Level Input Voltage (All digital input pins) VIL —— 0.2 VDD V Hysteresis of Schmitt Trigger Inputs VHYS —0.05 VDD —V Input Leakage Current ILEAKAGE -1 — 1 ALDAC = CS = SDI = SCK = VDD or VSS Digital Pin Capacitance (All inputs/outputs) CIN, COUT —10 — pF VDD = 5.0V, TA = +25°C, fCLK = 1 MHz (Note 1) Clock Frequency FCLK —— 20 MHz TA = +25°C (Note 1) Clock High Time tHI 15 — — ns Note 1 Clock Low Time tLO 15 — — ns Note 1 CS Fall to First Rising CLK Edge tCSSR 40 — — ns Applies only when CS falls with CLK high. (Note 1) Data Input Setup Time tSU 15 — — ns Note 1 Data Input Hold Time tHD 10 — — ns Note 1 SCK Rise to CS Rise Hold Time tCHS 15 — — ns Note 1 Note 1: This parameter is ensured by design and not 100% tested. ELECTRICAL CHARACTERISTIC WITH EXTENDED TEMPERATURE (CONTINUED) Electrical Specifications: Unless otherwise indicated, VDD = 5V, VSS = 0V, VREF = 2.048V, Output Buffer Gain (G) = 2x, RL = 5 k to GND, CL = 100 pF. Typical values are at +125°C by characterization or simulation. Parameters Sym Min Typ Max Units Conditions Note 1: Guaranteed monotonic by design over all codes. 2: This parameter is ensured by design, and not 100% tested. |
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