MCP4561-503E/MF Microchip Technology, MCP4561-503E/MF Datasheet - Page 43
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
MCP4561-503E/MF
Manufacturer Part Number
MCP4561-503E/MF
Description
7/8-Bit Single/Dual I2C Digital POT with Non-Volatile Memory ; 8L DFN 3x3mm
Manufacturer
Microchip Technology
Datasheet
1.MCP4561-503EMF.pdf
(92 pages)
- Current page: 43 of 92
- Download datasheet (2Mb)
5.0
The Resistor Network has either 7-bit or 8-bit resolu-
tion. Each Resistor Network allows zero scale to
full-scale connections.
gram 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 one or two resistor networks,
These are referred to as Pot 0 and Pot 1.
FIGURE 5-1:
© 2008 Microchip Technology Inc.
R
Note 1:
AB
R
R
R
R
S
S
S
S
A
B
RESISTOR NETWORK
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 kΩ).
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)
, Terminal voltages (on A, B,
8-Bit
Figure 5-1
257
N =
256
255
Analog Mux
1
0
(80h)
(7Fh)
(7Eh)
(01h)
(00h)
7-Bit
128
N =
127
126
devices
shows a block dia-
1
0
(5.0 kΩ)
MCP454X/456X/464X/466X
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
=
=
shows the calculation for the step
------------- -
(
-------------
(
R
R
128
256
AB
AB
)
)
R
the
S
CALCULATION
R
8-bit Device
AB
7-bit Device
DS22107A-page 43
resistance
(see
AB
Related parts for MCP4561-503E/MF
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![MCP4561-104E/MS](/photos/6/59/65932/mfg_150_c04-111_ms_8-msop_tmb.jpg)
Part Number:
Description:
IC DGTL POT 100K 256TAPS 8-MSOP
Manufacturer:
Microchip Technology
Datasheet:
![MCP4561-502E/MS](/photos/6/59/65932/mfg_150_c04-111_ms_8-msop_tmb.jpg)
Part Number:
Description:
IC DGTL POT 5K 256TAPS 8-MSOP
Manufacturer:
Microchip Technology
Datasheet:
![MCP4561-503E/MS](/photos/6/59/65932/mfg_150_c04-111_ms_8-msop_tmb.jpg)
Part Number:
Description:
IC DGTL POT 50K 256TAPS 8-MSOP
Manufacturer:
Microchip Technology
Datasheet:
![MCP4561-103E/MS](/photos/6/59/65932/mfg_150_c04-111_ms_8-msop_tmb.jpg)
Part Number:
Description:
IC POT DGTL 10K 257TAPS 8-MSOP
Manufacturer:
Microchip Technology
Datasheet:
![TC1014-2.7VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1014-5.0VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.5VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.7VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.8VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-4.0VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1186-2.5VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet: