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MCP4652 Datasheet(HTML) 5 Page - Microchip Technology

Part No. MCP4652
Description  7/8-Bit Single/Dual I2C Digital POT with Volatile Memory
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Maker  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
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MCP4652 Datasheet(HTML) 5 Page - Microchip Technology

 
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© 2008 Microchip Technology Inc.
DS22096A-page 5
MCP453X/455X/463X/465X
Resistance
(± 20%)
RAB
4.0
5
6.0
k
Ω
-502 devices (Note 1)
8.0
10
12.0
k
Ω
-103 devices (Note 1)
40.0
50
60.0
k
Ω
-503 devices (Note 1)
80.0
100
120.0
k
Ω
-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)
Ω
8-bit
Note 6
—RAB /
(128)
Ω
7-bit
Note 6
Nominal
Resistance Match
|RAB0 - RAB1| /
RAB
0.2
1.25
%
MCP46X1 devices only
|RBW0 - RBW1|
/ RBW
0.25
1.5
%
MCP46X2 devices only,
Code = Full-Scale
Wiper Resistance
(Note 3, Note 4)
RW
—75
160
Ω
VDD = 5.5 V, IW = 2.0 mA, code = 00h
—75
300
Ω
VDD = 2.7 V, IW = 2.0 mA, code = 00h
Nominal
Resistance
Tempco
ΔR
AB/ΔT
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
ΔV
WB/ΔT
15
ppm/°C Code = Midscale (80h or 40h)
Resistor Terminal
Input Voltage
Range (Terminals
A, B and W)
VA,VW,VB
Vss
VDD
V
Note 5, Note 6
AC/DC CHARACTERISTICS (CONTINUED)
DC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature
–40°C
≤ T
A ≤ +125°C (extended)
All parameters apply across the specified operating ranges unless noted.
VDD = +2.7V to 5.5V, 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ 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:
MCP4XX1 only.
4:
MCP4XX2 only, includes VWZSE and 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 overvoltage and
temperature.
8:
The MCP4XX1 is externally connected to match the configurations of the MCP45X2 and MCP46X2, 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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