MCP4021 데이터 시트보기 (PDF) - Microchip Technology
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MCP4021 Datasheet PDF : 64 Pages
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MCP4021/2/3/4
AC/DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, all parameters apply across the specified operating ranges.
TA = -40°C to +125°C, 2.1 kΩ, 5 kΩ, 10 kΩ and 50 kΩ devices. Typical specifications represent values for VDD = 5.5V, VSS = 0V,
TA = +25°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Wiper Resistance (Note 3, Note 4)
RW
—
70
125
—
70
325
Ω 5.5V
Ω 2.7V
Nominal Resistance Tempco
Ratiometeric Tempco
ΔR/ΔT
—
50
—
100
—
150
ΔVWA/ΔT
—
10
—
ppm/°C TA = -20°C to +70°C
—
ppm/°C TA = -40°C to +85°C
—
ppm/°C TA = -40°C to +125°C
—
ppm/°C MCP4021 and MCP4023 only,
code = 1Fh
Full-Scale Error
Zero-Scale Error
Monotonicity
VWFSE
-0.5
VWZSE
-0.5
N
-0.1
+0.1
Yes
+0.5
+0.5
LSb Code 3Fh (MCP4021/23 only)
LSb Code 00h (MCP4021/23 only)
Bits
Potentiometer Integral Non-linearity
INL
-0.5 ±0.25
+0.5
LSb MCP4021/23 only (Note 2)
Potentiometer Differential
Non-linearity
DNL
-0.5 ±0.25
+0.5
LSb MCP4021/23 only (Note 2)
Resistor Terminal Input Voltage
Range (Terminals A, B and W)
VA,VW,VB Vss
—
VDD
V Note 5, Note 6
Maximum current through A, W or B
IW
—
—
2.5
mA Note 6
Leakage current into A, W or B
IWL
—
100
—
nA MCP4021 A = W = B = VSS
—
100
—
nA MCP4022/23 A = W = VSS
—
100
—
nA MCP4024 W = VSS
Capacitance (PA)
CAW
—
75
—
pF f =1 MHz, code = 1Fh
Capacitance (Pw)
CW
—
120
—
pF f =1 MHz, code = 1Fh
Capacitance (PB)
CBW
—
75
—
pF f =1 MHz, code = 1Fh
Bandwidth -3 dB
BW
—
4
—
MHz -202
Code = 1F,
devices output load = 30 pF
—
2
—
MHz -502
devices
—
1
—
MHz -103
devices
—
200
—
kHz -503
devices
Note 1:
2:
3:
4:
Resistance is defined as the resistance between terminal A to terminal B.
INL and DNL are measured at VW with VA = VDD and VB = VSS. (-202 devices VA = 4V).
MCP4021/23 only, test conditions are: IW = 1.9 mA, code = 00h.
MCP4022/24 only, test conditions are:
Device
Resistance
Current at Voltage
5.5V
2.7V
Comments
2.1 kΩ
5 kΩ
10 kΩ
50 kΩ
2.25 mA
1.4 mA
450 µA
90 µA
1.1 mA
450 µA
210 µA
40 µA
MCP4022 includes VWZSE
MCP4024 includes VWFSE
5: Resistor terminals A, W and B’s polarity 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. See
Section 6.0 “Resistor” for additional information.
8: The MCP4021 is externally connected to match the configurations of the MCP4022 and MCP4024, and then tested.
© 2006 Microchip Technology Inc.
DS21945E-page 3
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