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MCP4922 bảng dữ liệu(PDF) 4 Page - Microchip Technology |
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MCP4922 bảng dữ liệu(HTML) 4 Page - Microchip Technology |
4 / 48 page MCP4902/4912/4922 DS22250A-page 4 2010 Microchip Technology Inc. Offset Error Temperature Coefficient VOS/°C — 0.16 — ppm/°C -45°C to 25°C — -0.44 — ppm/°C +25°C to 85°C Gain Error gE — -0.10 1 % of FSR Code = 0xFFFh, not including off- set error Gain Error Temperature Coefficient G/°C — -3 — ppm/°C Input Amplifier (VREF Input) Input Range – Buffered Mode VREF 0.040 — VDD – 0.040 V Note 2 Code = 2048 VREF = 0.2V p-p, f = 100 Hz and 1kHz Input Range – Unbuffered Mode VREF 0— VDD V Input Impedance RVREF —165 — k Unbuffered Mode Input Capacitance – Unbuffered Mode CVREF —7 — pF Multiplier Mode -3 dB Bandwidth fVREF —450 — kHz VREF = 2.5V ±0.2Vp-p, Unbuffered, G = 1x fVREF —400 — kHz VREF = 2.5V ±0.2 Vp-p, Unbuffered, G = 2x Multiplier Mode – Total Harmonic Distortion THDVREF —-73 — dB VREF = 2.5V ±0.2Vp-p, Frequency = 1 kHz 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 m — 66 — degrees Slew Rate SR — 0.55 — V/µs Short Circuit Current ISC —15 24 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 ELECTRICAL CHARACTERISTICS (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 TA = -40 to +85°C. Typical values are at +25°C. 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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