AD5757 Analog Devices, AD5757 Datasheet - Page 4

• Manufacturer Part Number: AD5757
• Description: Quad Channel, 16-Bit, Serial Input, 4-20mA Output DAC, Dynamic Power Control, HART Connectivity
• Manufacturer: Analog Devices

Specifications of AD5757

• Resolution (bits): 16bit
• Dac Update Rate: 60kSPS
• Dac Settling Time: 15µs
• Max Pos Supply (v): +33V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: SPI

AD5757
DETAILED FUNCTIONAL BLOCK DIAGRAM
REFOUT
CLEAR
ALERT
FAULT
DGND
REFIN
LDAC
SCLK
SYNC
DV
SDIN
SDO
AD1
AD0
DD
(SPI ACTIVITY)
AD5757
REFERENCE
WATCHDOG
POWER-ON
REGISTER
REGISTER
CONTROL
BUFFERS
STATUS
RESET
TIMER
INPUT
SHIFT
VREF
AND
AGND
16
AV
+15V
DD
DAC CHANNEL A
DAC CHANNEL B
DAC CHANNEL C
DAC CHANNEL D
REG A
INPUT
AV
5.0V
CC
GAIN REG A
OFFSET REG A
+
REG A
DAC
Rev. B | Page 4 of 44
16
Figure 2.
DAC A
SW
CONTROL
B
POWER
, SW
C
, SW
D
7.4V TO 29.5V
SW
R2
R1
V
A
BOOST_B
REG
, V
V
V
CONVERTER
SEN1
BOOST_A
BOOST_C
DC-TO-DC
, V
V
SEN2
BOOST_D
R3
I
R
CHARTA
I
R
CHARTB, CHARTC, CHARTD
OUT_A
OUT_B
SET_B
SET_A
, I
, R
Data Sheet
OUT_C
SET_C
, I
, R
OUT_D
SET_D