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MCP42010-E/SL Datasheet

  • MCP42010-E/SL

  • IC, DIGITAL POT, 256 STEPS, SPI 10K; End To End Resistance:1...

  • 866.20KB

  • 32页

  • Microchip

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M
Features
鈥?256 taps for each potentiometer
鈥?Potentiometer values for 10 k鈩? 50 k鈩?and
100 k鈩?/div>
鈥?Single and dual versions
鈥?SPI鈩?serial interface (mode 0,0 and 1,1)
鈥?卤1 LSB max INL & DNL
鈥?Low power CMOS technology
鈥?1 碌A maximum supply current in static operation
鈥?Multiple devices can be daisy-chained together
(MCP42XXX only)
鈥?Shutdown feature open circuits of all resistors for
maximum power savings
鈥?Hardware shutdown pin available on MCP42XXX
only
鈥?Single supply operation (2.7V - 5.5V)
鈥?Industrial temperature range: -40掳C to +85掳C
鈥?Extended temperature range: -40掳C to +125掳C
MCP41XXX/42XXX
Description
The MCP41XXX and MCP42XXX devices are 256-
position, digital potentiometers available in 10 k鈩?
50 k鈩?and 100 k鈩?resistance versions. The
MCP41XXX is a single-channel device and is offered in
an 8-pin PDIP or SOIC package. The MCP42XXX con-
tains two independent channels in a 14-pin PDIP, SOIC
or TSSOP package. The wiper position of the
MCP41XXX/42XXX varies linearly and is controlled via
an industry-standard SPI interface. The devices con-
sume <1 碌A during static operation. A software shut-
down feature is provided that disconnects the 鈥淎鈥?/div>
terminal from the resistor stack and simultaneously con-
nects the wiper to the 鈥淏鈥?terminal. In addition, the dual
MCP42XXX has a SHDN pin that performs the same
function in hardware. During shutdown mode, the con-
tents of the wiper register can be changed and the
potentiometer returns from shutdown to the new value.
The wiper is reset to the mid-scale position (80h) upon
power-up. The RS (reset) pin implements a hardware
reset and also returns the wiper to mid-scale. The
MCP42XXX SPI interface includes both the SI and SO
pins, allowing daisy-chaining of multiple devices. Chan-
nel-to-channel resistance matching on the MCP42XXX
varies by less than 1%. These devices operate from a
single 2.7 - 5.5V supply and are specified over the
extended and industrial temperature ranges.
Single/Dual Digital Potentiometer with SPI
鈩?/div>
Interface
Block Diagram
RS
V
DD
V
SS
Control
Logic
Wiper
Register
SHDN
PB0
Resistor
Array 0
PA0
PW0
PB1
PA1
PW1
Package Types
PDIP/SOIC
CS
SCK
SI
V
SS
1
2
3
4
8
7
6
5
V
DD
PB0
PW0
PA0
MCP41XXX
CS
SI
SCK
16-Bit
Shift
Register
S0
Wiper Resistor
Register Array 1*
*Potentiometer
P1 is only available on the dual
MCP42XXX version.
PDIP/SOIC/TSSOP
CS
SCK
SI
V
SS
PB1
PW1
PA1
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
DD
SO
SHDN
RS
PB0
PW0
PA0
MCP42XXX
铮?/div>
2003 Microchip Technology Inc.
DS11195C-page 1

MCP42010-E/SL 产品属性

  • Microchip

  • 数字电位计 IC

  • 10 KOhms

  • Dual

  • 256

  • Buffered

  • Serial

  • 256 Step SPI 10k Ohm with SPI Interface

  • 2.7 V to 5.5 V

  • 340 uA

  • + 125 C

  • SMD/SMT

  • SOIC-14

  • Tube

  • - 40 C

  • 57

  • 5.5 V

  • 2.7 V

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