AD5755-1 Analog Devices, AD5755-1 Datasheet - Page 4

• Manufacturer Part Number: AD5755-1
• Description: Quad Channel, 16-Bit, Serial Input, 4-20mA & Voltage Output DAC, Dynamic Power Control, HART Connectivity
• Manufacturer: Analog Devices

Specifications of AD5755-1

• Resolution (bits): 16bit
• Dac Update Rate: 91kSPS
• Dac Settling Time: 11µs
• Max Pos Supply (v): +33V
• Single-supply: No
• Dac Type: I or V Out
• Dac Input Format: SPI

AD5755-1
DETAILED FUNCTIONAL BLOCK DIAGRAM
REFOUT
CLEAR
ALERT
FAULT
DGND
REFIN
LDAC
SYNC
SCLK
DV
SDIN
SDO
AD1
AD0
DD
–15V/0V AGND
(SPI ACTIVITY)
AD5755-1
AV
REFERENCE
WATCHDOG
POWER-ON
REGISTER
REGISTER
CONTROL
BUFFERS
STATUS
SS
RESET
INPUT
TIMER
SHIFT
VREF
AND
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 52
16
Figure 2.
DAC A
SW
CONTROL
POWER
B
, SW
C
, SW
SCALING
RANGE
VOUT
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
+V
V
I
R
CHARTB, CHARTC, CHARTD
+V
V
OUT_B
OUT_A
OUT_B
SET_B
SET_A
OUT_A
SENSE_B
SENSE_A
, I
, R
,
Data Sheet
OUT_C
V
SET_C
OUT_C
, +V
, I
SENSE_
, R
OUT_D
,
V
SET_D
OUT_D
C , +V
SENSE_
D