DAC8218 Datasheet, PDF (48/60 Pages) Texas Instruments – Octal, 14-Bit, Low-Power, High-Voltage Output, Serial Input DIGITAL-TO-ANALOG CONVERTER

DAC8218
SBAS460A – MAY 2009 – REVISED DECEMBER 2009
www.ti.com
Table 10. Register Map
ADDRESS BITS
DATA BITS
A4 A3 A2 A1 A0 D15
D14
D13 D12 D11 D10 D9 D8
D7
D6
D5 D4 D3:D0
REGISTER
0 0 0 0 0 A/B
LD
RST PD-A PD-B SCE X GAIN-A GAIN-B DSDO NOP W2
00001
0 0 0 1 0 GPIO-2 GPIO-1 GPIO-0
Analog Monitor Select
X ⁽¹⁾
X ⁽¹⁾
Configuration
Register
X⁽¹⁾ Monitor Register
GPIO Register
00011
OS13:OS0, X, X⁽²⁾
Offset DAC-A
Data
00100
OS13:OS0, X, X⁽²⁾
Offset DAC-B
Data
00101
0 0 1 1 0 SLEEP
Reserved ⁽³⁾
Reserved ⁽³⁾
Reserved
SPI MODE
00111
DB13:DB0, X, X
Broadcast
01000
DB13:DB0, X, X
DAC-0
01001
DB13:DB0, X, X
DAC-1
01010
DB13:DB0, X, X
DAC-2
01011
DB13:DB0, X, X
DAC-3
01100
DB13:DB0, X, X
DAC-4
01101
DB13:DB0, X, X
DAC-5
01110
DB13:DB0, X, X
DAC-6
01111
DB13:DB0, X, X
DAC-7
10000
Z13:Z0, X, X, default = 0 (0000h), twos complement
Zero Register-0
11000
G13:G0, X, X, default = 8192 (2000h), straight binary
Gain Register-0
10001
Z13:Z0, X, X, default = 0 (0000h), twos complement
Zero Register-1
11001
G13:G0, X, X, default = 8192 (2000h), straight binary
Gain Register-1
10010
Z13:Z0, X, X, default = 0 (0000h), twos complement
Zero Register-2
11010
G13:G0, X, X, default = 8192 (2000h), straight binary
Gain Register-2
10011
Z13:Z0, X, X, default = 0 (0000h), twos complement
Zero Register-3
11011
G13:G0, X, X, default = 8192 (2000h), straight binary
Gain Register-3
10100
Z13:Z0, X, X, default = 0 (0000h), twos complement
Zero Register-4
11100
G13:G0, X, X, default = 8192 (2000h), straight binary
Gain Register-4
10101
Z13:Z0, X, X, default = 0 (0000h), twos complement
Zero Register-5
11101
G13:G0, X, X, default = 8192 (2000h), straight binary
Gain Register-5
10110
Z13:Z0, X, X, default = 0 (0000h), twos complement
Zero Register-6
11110
G13:G0, X, X, default = 8192 (2000h), straight binary
Gain Register-6
10111
Z13:Z0, X, X, default = 0 (0000h), twos complement
Zero Register-7
11111
G13:G0, X, X, default = 8192 (2000h), straight binary
Gain Register-7
(1) X = don't care—writing to this bit has no effect; reading the bit returns '0'.
(2) Table 7 lists the default values for a dual power supply. Offset DAC A and Offset DAC B are trimmed in manufacturing to minimize the
error for symmetrical output. The default value may vary no more than ±3 LSB from the nominal number listed in Table 7. For a single
power supply, the Offset DACs are turned off.
(3) Writing to a reserved bit has no effect; reading the bit returns '0'.
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