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MCP4822 bảng dữ liệu(PDF) 4 Page - Microchip Technology |
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MCP4822 bảng dữ liệu(HTML) 4 Page - Microchip Technology |
4 / 36 page MCP4821/MCP4822 DS21953A-page 4 © 2005 Microchip Technology Inc. Internal Voltage Reference (VREF) Nominal Reference Voltage VREF 2.008 2.048 2.088 V VOUTA when G = 1x and Code = 0xFFFh Temperature Coefficient (Note 1) ΔV REF/°C — 125 325 ppm/°C -40°C to 0°C — 0.25 0.65 LSb/°C -40°C to 0°C — 45 160 ppm/°C 0°C to +85°C — 0.09 0.32 LSb/°C 0°C to +85°C Output Noise (VREF Noise) ENREF (0.1-10 Hz) — 290 — µVp-p Code = 0xFFFh, G = 1 Output Noise Density eNREF (1 kHz) —1.2 — µV/ √Hz Code = 0xFFFh, G = 1 eNREF (10 kHz) —1.0 — µV/ √Hz Code = 0xFFFh, G = 1 1/f Corner Frequency fCORNER — 400 — Hz Output Amplifier Output Swing VOUT — 0.010 to VDD – 0.040 — Accuracy is better than 1 LSb for VOUT = 10 mV to (VDD – 40 mV) Phase Margin PM — 66 — ° Slew Rate SR — 0.55 — V/µs Short Circuit Current ISC —14 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 DAC-to-DAC Crosstalk — <10 — nV-s Note 2 Major Code Transition Glitch — 45 — nV-s 1 LSb change around major carry (0111...1111 to 1000...0000 ) Digital Feedthrough — <10 — nV-s Note 2 Analog Crosstalk — <10 — nV-s Note 2 3V AC/DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise indicated, VDD = 3V, AVSS = 0V, VREF = 2.048V external, output buffer gain (G) = 1x, RL = 5 kΩ to GND, CL = 100 pF, TA = -40 to +85°C. Typical values at 25°C Parameters Sym Min Typ Max Units Conditions Note 1: By design, not production tested. 2: Too small to quantify. 5V EXTENDED TEMPERATURE SPECIFICATIONS Electrical Specifications: Unless otherwise indicated, VDD = 5V, AVSS = 0V, VREF = 2.048V, output buffer gain (G) = 2x, RL = 5 kΩ to GND, CL = 100 pF. Typical values at +125°C by characterization or simulation. Parameters Sym Min Typ Max Units Conditions Power Requirements Input Voltage VDD 2.7 — 5.5 Input Current - MCP4821 Input Current - MCP4822 IDD — — 350 440 — µA Digital inputs grounded, Output unloaded, code = 0x000 Hardware Shutdown Current ISHDN —1.5 — µA Software Shutdown Current ISHDN_SW —5 —µA Power-On Reset threshold VPOR —1.85 — V DC Accuracy Resolution n 12 — — Bits INL Error INL — ±4 — LSb Note 1: By design, not production tested. 2: Too small to quantify. |
Số phần tương tự - MCP4822 |
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Mô tả tương tự - MCP4822 |
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