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mcp4142
Microchip mcp4142 Brugsanvisning
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© 2008 Microchip Technology Inc. DS22059B-page 1
MCP414X/416X/424X/426X
Features
• Single or Dual Resistor Network options
• Potentiometer or Rheostat configuration options
• Resistor Network Resolution
- 7-bit: 128 Resistors (129 Steps)
- 8-bit: 256 Resistors (257 Steps)
• RAB Resistances options of:
- 5 kΩ
- 10 kΩ
- 50 kΩ
- 100 kΩ
• Zero-Scale to Full-Scale Wiper operation
• Low Wiper Resistance: 75Ω (typical)
• Low Tempco:
- Absolute (Rheostat): 50 ppm typical
(0°C to 70°C)
- Ratiometric (Potentiometer): 15 ppm typical
• Non-volatile Memory
- Automatic Recall of Saved Wiper Setting
- WiperLock™ Technology
• SPI serial interface (10 MHz, modes 0,0 & 1,1)
- High-Speed Read/Writes to wiper registers
- Read/Write to Data EEPROM registers
- Serially enabled EEPROM write protect
- SDI/SDO multiplexing (MCP41X1 only)
• Resistor Network Terminal Disconnect Feature
via:
- Shutdown pin (SHDN)
- Terminal Control (TCON) Register
• Write Protect Feature:
- Hardware Write Protect (WP) Control pin
- Software Write Protect (WP) Configuration bit
• Brown-out reset protection (1.5V typical)
• Serial Interface Inactive current (2.5 uA typical)
• High-Voltage Tolerant Digital Inputs: Up to 12.5V
• Supports Split Rail Applications
• Internal weak pull-up on all digital inputs
• Wide Operating Voltage:
- 2.7V to 5.5V - Device Characteristics
Specified
- 1.8V to 5.5V - Device Operation
• Wide Bandwidth (-3dB) Operation:
- 2 MHz (typical) for 5.0 kΩ device
• Extended temperature range (-40°C to +125°C)
Description
The MCP41XX and MCP42XX devices offer a wide
range of product offerings using an SPI interface.
WiperLock Technology allows application-specific
calibration settings to be secured in the EEPROM.
Package Types (top view)
1
2
3
4 5
6
7
8
P0W
P0B
P0AVSS
VDD
MCP41X1
Single Potentiometer
PDIP, SOIC, MSOP
CS
SDI/SDO
SCK
1
2
3
4 5
6
7
8
P0B
SDO
P0W
V
DD
MCP41X2
Single Rheostat
PDIP, SOIC, MSOP
1
2
3
411
12
13
14
SHDN
SDO
WP
VDD
MCP42X1 Dual Potentiometers
PDIP, SOIC, TSSOP
5
6
78
9
10 P0W
P0B
P0A
P1A
P1W
P1B
V
SS
CS
SDI
SCK
VSS
CS
SDI
SCK
4x4 QFN*
1
2
3
47
8
9
10
SDO
VDD
MCP42X2 Dual Rheostat
MSOP, DFN
56
P0B
P0W
P1W
P1B
VSS
CS
SDI
SCK
3x3 DFN*
SDI/SDO
SCK
VSS
P0B
P0W
1
2
3
4
8
7
6
5 P0A
CS
EP
9
3x3 DFN*
SDI
SCK
VSS
SDO
P0B
1
2
3
4
8
7
6
5 P0W
VDD
CS
EP
9
VDD
3x3 DFN*
SDI
SCK
VSS
SDO
P0B
1
2
3
4
10
9
8
7 P0W
CS
EP
11
VDD
56
P1B P1W
* Includes Exposed Thermal Pad (EP); see Table 3-1.
2
VSS
VSS
SCK WP
NC
P1B
P0B
P1W
P1A
P0A
P0W
CS
VDD
SDO
SHDN
SDI EP
16
1
15 14 13
3
4
12
11
10
9
5 6 7 8
17
7/8-Bit Single/Dual SPI Digital POT with
Non-Volatile Memory
Problemløsning Microchip mcp4142
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Specifikationer
| Mærke: | Microchip |
| Kategori: | Ikke kategoriseret |
| Model: | mcp4142 |