MAX5702AAUB+ Maxim Integrated, MAX5702AAUB+ Datasheet - Page 20

• Manufacturer Part Number: MAX5702AAUB+
• Description: Digital to Analog Converters - DAC 12-Bit 2Ch DAC w/SPI
• Manufacturer: Maxim Integrated

Specifications of MAX5702AAUB+

• Rohs: yes
• Resolution: 12 bit
• Interface Type: SPI
• Settling Time: 4.5 us
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: uMAX-10
• Maximum Power Dissipation: 707 mW
• Minimum Operating Temperature: - 40 C
• Supply Current: 250 uA
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 1.8 V
• Voltage Reference: 10 PPM / C

The MAX5700/MAX5701/MAX5702 feature a software-
controlled power-mode (POWER) command (B[23:18]
= 010000). The POWER command updates the power-
mode settings of the selected DACs while the power set-
tings of the rest of the DACs remain unchanged. The new
power setting is determined by bits B[17:16] while the
affected DAC(s) are selected by bits B[9:8]. If all DACs
are powered down, the device enters a STANDBY mode.
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
power-down mode. In power-down mode, the DAC regis-
ter retains its value so that the output is restored when the
device powers up. The serial interface remains active in
power-down mode.
Table 4. POWER Command Format
Table 5. Selectable DAC Output Impedance in Power-Down Mode
Maxim Integrated
Ultra-Small, Dual-Channel, 8-/10-/12-Bit Buffered Output
B23 B22 B21 B20 B19 B18 B17 B16
0
Default Values (all DACs) ➝
Table 5
POWER Command
PD1 (B17)
1
0
0
1
1
0
for the selectable internal resistor values in
DACs with Internal Reference and SPI Interface
0
0
0
PD0 (B16)
PD1 PD0
01 = 1kI
11 = Hi-Z
Normal
0
Mode:
Power
100kI
00 =
10 =
POWER Command
0
1
0
1
0
B15
X
X
B14 B13 B12 B11 B10
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
Don’t Care
MAX5700/MAX5701/MAX5702
X
X
X
X
X
X
In STANDBY mode, the internal reference can be pow-
ered down or it can be set to remain powered-on for
external use. Also, in STANDBY mode, devices using the
external reference do not load the REF pin. See
The SW_RESET (B[23:16] = 01010001) and SW_CLEAR
(B[23:16] = 01010000) commands provide a means of
issuing a software reset or software clear operation. Use
SW_CLEAR to issue a software clear operation to return
all CODE and DAC registers to the zero-scale value. Use
SW_RESET to reset all CODE, DAC, and configuration
registers to their default values.
X
X
Selection:
1 = DAC
Selected
0 = DAC
Selected
SW_RESET and SW_CLEAR Command
B9
Multiple
B
1
DAC
OPERATINg MODE
Not
B8
A
1
B7
X
X
B6
X
X
B5
X
X
Don’t Care
B4
X
X
B3
X
X
B2
X
X
Table
B1
X
X
B0
X
X
20
4.