MCP41XXX Datasheet, PDF (9/32 Pages) Microchip Technology – Single/Dual Digital Potentiometer with SPI Interface

MCP41XXX/42XXX
Note: Unless otherwise indicated, curve represents 10 kΩ, 50 kΩ and 100 kΩ devices, V_DD = 5V, V_SS = 0V, T_A = +25°C,
V_B = 0V.
180
MCP41010,MCP42010
160 Code = 00h,
140 ^{Sample Size = 400}
120
100
80
60
40
20
0
47 48 49 50 51 52 53 54 55 56 57 58 59
Wiper Resistance (Ω)
FIGURE 2-13:
10 kΩ Device Wiper
Resistance Histogram.
C_L = 27 pF
FIGURE 2-16:
Full-Scale Settling Time.
140
MCP41050, MCP41100,
120
MCP42050, MCP42100
Code = 00h,
100
Sample Size = 796
80
60
40
20
0
115 117 119 121 123 125 127 129 131 133
Wiper Resistance (Ω)
FIGURE 2-14:
50 kΩ, 100 kΩ Device Wiper
Resistance Histogram.
FIGURE 2-15:
One Position Settling Time.
V_OUT
C_L = 27 pF
Code = 80h
CS
FIGURE 2-17:
Time.
Digital Feed through vs.
6
Code FFh
0
Code 80h
-6
Code 40h
-12
Code 20h
-18
Code 10h
-24
Code 08h
-30
Code 04h
-36
Code 02h
-42
Code 01h
-48
C_L = 30pF, Refer to Figure 2-29
-54 _{MCP41010, MCP42010 (10kΩ potentiometers)}
-60
100
1k
10k
100k
1M
Frequency (Hz)
10M
FIGURE 2-18:
Gain vs. Frequency for
10 kΩ Potentiometer.
 2003 Microchip Technology Inc.
DS11195C-page 9