MCP4812-E/SN Microchip Technology, MCP4812-E/SN Datasheet - Page 22

• Manufacturer Part Number: MCP4812-E/SN
• Description: DAC 10BIT DUAL SPI/VREF 8SOIC
• Manufacturer: Microchip Technology

Specifications of MCP4812-E/SN

• Number Of Converters: 2
• Settling Time: 4.5µs
• Package / Case: 8-SOIC (3.9mm Width)
• Number Of Bits: 10
• Data Interface: Serial, SPI™
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Number Of Dac Outputs: 2
• Resolution: 10 bit
• Interface Type: SPI
• Supply Voltage (max): 6.5 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 55 C
• Supply Current: 415 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power Dissipation (max): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MCP4802/4812/4822
REGISTER 5-1:
REGISTER 5-2:
REGISTER 5-3:
Where:
DS22249A-page 22
bit 15
bit 14
bit 13
bit 12
bit 11-0
bit 15
bit 15
bit 15
Legend
R = Readable bit
-n = Value at POR
W-x
W-x
W-x
A/B
A/B
A/B
W-x
W-x
W-x
—
—
—
A/B: DAC
1
0
GA: Output Gain Selection bit
1
0
SHDN: Output Shutdown Control bit
1
0
D11:D0: DAC Input Data bits. Bit x is ignored.
= Write to DAC
= Write to DAC
= 1x (V
= 2x (V
= Active mode operation. V
= Shutdown the selected DAC channel. Analog output is not available at the channel that was shut down.
—
W-x
W-x
W-x
GA
GA
GA
V
Don’t Care
OUT
A
OUT
OUT
SHDN
SHDN
SHDN
WRITE COMMAND REGISTER FOR MCP4812 (10-BIT DAC)
WRITE COMMAND REGISTER FOR MCP4802 (8-BIT DAC)
pin is connected to 500 ktypical)
or DAC
WRITE COMMAND REGISTER FOR MCP4822 (12-BIT DAC)
W-0
W-0
W-0
= V
= 2 * V
B
A
REF
B
W-x
D11
W-x
W-x
D9
D7
Selection bit
REF
* D/4096)
W = Writable bit
1 = bit is set
* D/4096), where internal V
W-x
D10
W-x
W-x
D8
D6
OUT
W-x
W-x
W-x
D9
D7
D5
is available. 
W-x
W-x
W-x
D8
D6
D4
W-x
W-x
W-x
D7
D5
D3
U = Unimplemented bit, read as ‘0’
0 = bit is cleared
REF
W-x
W-x
W-x
D6
D4
D2
= 2.048V.
W-x
W-x
W-x
D5
D3
D1
W-x
W-x
W-x
D4
D2
D0
 2010 Microchip Technology Inc.
W-x
W-x
W-x
D3
D1
x = bit is unknown
x
W-x
W-x
W-x
D2
D0
x
W-x
W-x
W-x
D1
x
x
W-x
W-x
W-x
D0
bit 0
bit 0
bit 0
x
x