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MCP443X Datasheet(PDF) 5 Page - Microchip Technology |
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MCP443X Datasheet(HTML) 5 Page - Microchip Technology |
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5 / 94 page  2010 Microchip Technology Inc. DS22267A-page 5 MCP443X/5X Resistance (± 20%) RAB 4.0 5 6.0 k -502 devices (Note 1) 8.0 10 12.0 k -103 devices (Note 1) 40.0 50 60.0 k -503 devices (Note 1) 80.0 100 120.0 k -104 devices (Note 1) Resolution N 257 Taps 8-bit No Missing Codes 129 Taps 7-bit No Missing Codes Step Resistance RS —RAB / (256) — 8-bit Note 6 —RAB / (128) — 7-bit Note 6 Nominal Resistance Match (| RABWC - RABMEAN |) / RABMEAN — 0.2 1.50 % 5 k MCP44X1 devices only — 0.2 1.25 % 10 k —0.2 1.0 % 50 k — 0.2 1.0 % 100 k (| RBWWC - RBWMEAN |) / RBWMEAN —0.25 1.75 % 5 k Code = Full Scale —0.25 1.50 % 10 k —0.25 1.25 % 50 k — 0.25 1.25 % 100 k Wiper Resistance (Note 3, Note 4) RW — 75 160 VDD = 5.5 V, IW = 2.0 mA, code = 00h — 75 300 VDD = 2.7 V, IW = 2.0 mA, code = 00h Nominal Resistance Tempco RAB/T— 50 — ppm/°C TA = -20°C to +70°C —100 — ppm/°C TA = -40°C to +85°C —150 — ppm/°C TA = -40°C to +125°C Ratiometeric Tempco VWB/T — 15 — ppm/°C Code = Midscale (80h or 40h) Resistance Tracking RTRACK Section 2.0 ppm/°C See Typical Performance Curves AC/DC CHARACTERISTICS (CONTINUED) DC Characteristics Standard Operating Conditions (unless otherwise specified) Operating Temperature –40°C TA +125°C (extended) All parameters apply across the specified operating ranges unless noted. VDD = +2.7V to 5.5V, 5 k, 10 k, 50 k, 100 k devices. Typical specifications represent values for VDD = 5.5V, TA = +25°C. Parameters Sym Min Typ Max Units Conditions Note 1: Resistance is defined as the resistance between terminal A to terminal B. 2: INL and DNL are measured at VW with VA = VDD and VB = VSS. 3: MCP44X1 only. 4: MCP44X2 only, includes VWZSE and VWFSE. 5: Polarity of resistor terminals A, W and B, with respect to each other, is not restricted. 6: This specification by design. 7: Non-linearity is affected by wiper resistance (RW), which changes significantly over voltage and temperature. 8: The MCP44X1 is externally connected to match the configurations of the MCP44X2, and then tested. 9: POR/BOR is not rate dependent. 10: Supply current is independent of current through the resistor network. 11: When HVC/A0 = VIHH, the IDD current is less due to current into the HVC/A0 pin. See IPU specification. |
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