MAX5805AAUB+ Maxim Integrated, MAX5805AAUB+ Datasheet - Page 26

• Manufacturer Part Number: MAX5805AAUB+
• Description: Digital to Analog Converters - DAC 12Bit 1Ch V Buffered Precision DAC
• Manufacturer: Maxim Integrated

Specifications of MAX5805AAUB+

• Rohs: yes
• Number Of Converters: 1
• Number Of Dac Outputs: 1
• Resolution: 12 bit
• Interface Type: Serial (I2C)
• Settling Time: 6 us
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: uMAX-10
• Maximum Power Dissipation: 707.3 mW
• Minimum Operating Temperature: - 40 C
• Output Type: Voltage Buffered
• Supply Current: 190 uA
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 2.7 V

The MAX5803/MAX5804/MAX5805 feature a software-
controlled POWER mode command (B[23:20] = 0100).
In power-down, the DAC output is disconnected from
the buffer and is grounded with either one of the two
selectable internal resistors or set to high impedance.
See
resistor values in power-down mode. In power-down
Table 7. POWER (0100) Command Format
Table 8. Selectable DAC Output Impedance in Power-Down Mode
Maxim Integrated
B23 B22 B21 B20 B19 B18 B17 B16 B15 B14 B13 B12 B11 B10 B9
Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output
DEFAULT VALUES
Voltage DACs with Internal Reference and I
0
COMMAND
Table 7
PD1 (B7)
POWER
1
0
0
1
1
0
COMMAND BYTE
and
0
Table 8
X
X
Don’t Care
X
X
PD0 (B6)
0
1
0
1
for the selectable internal
X
X
POWER Command
X
X
X
X
Normal operation
Power-down with internal 1kI pulldown resistor to GND.
Power-down with internal 100kI pulldown resistor to GND.
Power-down with high-impedance output.
X
X
X
X
DATA HIGH BYTE
MAX5803/MAX5804/MAX5805
Don’t Care
X
X
X
X
mode, the DAC register retains its value so that the
output is restored when the device powers up. The serial
interface remains active in power-down mode with all
registers accessible.
In power-down mode, the internal reference can be
powered down or it can be set to remain powered-on for
external use. Also, in power-down mode, parts using the
external reference do not load the REF pin. See
X
X
OPERATING MODE
X
X
B8
X
X
PD1 PD0
01 = 1kI
11 = Hi-Z
B7
Normal
0
100kI
Power
Mode:
00 =
10 =
B6
0
B5
X
X
DATA LOW BYTE
2
B4
X
X
C Interface
Don’t Care
B3
X
X
B2
X
X
B1
X
X
Table
B0
X
X
26
7.