MCP4332-503E/ST Microchip Technology, MCP4332-503E/ST Datasheet - Page 43

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MCP4332-503E/ST

Manufacturer Part Number
MCP4332-503E/ST
Description
IC DGTL POT QUAD 50K 14TSSOP
Manufacturer
Microchip Technology
Datasheet

Specifications of MCP4332-503E/ST

Taps
129
Resistance (ohms)
50K
Number Of Circuits
4
Temperature Coefficient
150 ppm/°C Typical
Memory Type
Volatile
Interface
SPI Serial
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
14-TSSOP
Resistance In Ohms
50K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP4332-503E/ST
Manufacturer:
Microchip Technology
Quantity:
135
5.0
The Resistor Network has either 7-bit or 8-bit
resolution. Each Resistor Network allows zero scale to
full scale connections.
diagram for the resistive network of a device.
The Resistor Network is made up of several parts.
These include:
• Resistor Ladder
• Wiper
• Shutdown (Terminal Connections)
Devices have either four resistor networks. These are
referred to as Pot 0, Pot 1, Pot 2 and Pot 3.
FIGURE 5-1:
 2010 Microchip Technology Inc.
R
Note 1:
AB
R
R
R
R
S
S
S
S
RESISTOR NETWORK
A
B
The wiper resistance is dependent on
several factors including, wiper code,
device V
and W), and temperature.
Also for the same conditions, each tap
selection resistance has a small variation.
This R
some specifications (such as INL) for the
smaller
compared to larger resistance devices
(100.0 k).
R
R
R
R
R
W
W
W
W
W
W
(1)
(1)
(1)
(1)
(1)
DD
variation has greater effects on
resistance
(100h)
Resistor Block Diagram.
(FFh)
(FEh)
(01h)
(00h)
8-Bit
, Terminal voltages (on A, B
257
N =
256
255
Analog Mux
1
0
Figure 5-1
(7Eh)
(80h)
(7Fh)
(01h)
(00h)
7-Bit
128
N =
127
126
devices
1
0
shows a block
(5.0 k)
W
5.1
The resistor ladder is a series of equal value resistors
(R
resistors. The total number of resistors in the series
(ladder)
Figure
connected to analog switches which are connected to
the device terminal A and terminal B pins. The R
(and R
and temperature.
For an 8-bit device, there are 256 resistors in a string
between terminal A and terminal B. The wiper can be
set to tap onto any of these 256 resistors thus providing
257 possible settings (including terminal A and
terminal B).
For a 7-bit device, there are 128 resistors in a string
between terminal A and terminal B. The wiper can be
set to tap onto any of these 128 resistors thus providing
129 possible settings (including terminal A and
terminal B).
Equation 5-1
resistance.
EQUATION 5-1:
S
) with a connection point (tap) between the two
S
5-1). The end points of the resistor ladder are
) resistance has small variations over voltage
Resistor Ladder Module
determines
R
R
S
S
=
=
MCP433X/435X
shows the calculation for the step
------------- -
-------------
R
R
128
256
AB
AB
R
the
S
CALCULATION
R
AB
8-bit Device
7-bit Device
DS22242A-page 43
resistance
(see
AB

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