AD5735 Analog Devices, AD5735 Datasheet - Page 38

• Manufacturer Part Number: AD5735
• Description: Quad Channel, 12-Bit, Serial Input, 4-20 mA & Voltage Output DAC with Dynamic Power Control
• Manufacturer: Analog Devices

Specifications of AD5735

• Resolution (bits): 12bit
• Dac Settling Time: 11µs
• Max Pos Supply (v): +33V
• Single-supply: No
• Dac Type: I or V Out
• Dac Input Format: SPI

MSB
D15
DC-DCD DC-DCC DC-DCB DC-DCA User
AD5735
Status Register
The status register is a read-only register. This register contains
any fault information, as a well as a ramp active bit (Bit D9) and
a user toggle bit (Bit D11). When the STATREAD bit in the
main control register is set, the status register contents can be
Table 32. Decoding the Status Register
Table 33. Status Register Bit Descriptions
Bit Name
DC-DCD
DC-DCC
DC-DCB
DC-DCA
User Toggle
PEC Error
Ramp Active
Over Temp
V
V
V
V
I
I
I
I
OUT_D
OUT_C
OUT_B
OUT_A
OUT_D
OUT_C
OUT_B
OUT_A
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Fault
D14
Description
In current output mode, this bit is set if the dc-to-dc converter on Channel D cannot maintain compliance, for example, if
the dc-to-dc converter is reaching its V
Functionality section for more information about the operation of this bit under this condition.
In voltage output mode, this bit is set if the dc-to-dc converter on Channel D is unable to regulate to 15 V as expected.
When this bit is set, it does not result in the FAULT pin going high.
In current output mode, this bit is set if the dc-to-dc converter on Channel C cannot maintain compliance, for example, if
the dc-to-dc converter is reaching its V
Functionality section for more information about the operation of this bit under this condition.
In voltage output mode, this bit is set if the dc-to-dc converter on Channel C is unable to regulate to 15 V as expected.
When this bit is set, it does not result in the FAULT pin going high.
In current output mode, this bit is set if the dc-to-dc converter on Channel B cannot maintain compliance, for example, if
the dc-to-dc converter is reaching its V
Functionality section for more information about the operation of this bit under this condition.
In voltage output mode, this bit is set if the dc-to-dc converter on Channel B is unable to regulate to 15 V as expected.
When this bit is set, it does not result in the FAULT pin going high.
In current output mode, this bit is set if the dc-to-dc converter on Channel A cannot maintain compliance, for example, if
the dc-to-dc converter is reaching its V
Functionality section for more information about the operation of this bit under this condition.
In voltage output mode, this bit is set if the dc-to-dc converter on Channel A is unable to regulate to 15 V as expected.
When this bit is set, it does not result in the FAULT pin going high.
User toggle bit. This bit is set or cleared via the software register and can be used to verify data communications, if needed.
Denotes a PEC error on the last data-word received over the SPI interface.
This bit is set while any output channel is slewing (digital slew rate control is enabled on at least one channel).
This bit is set if the
This bit is set if a fault is detected on the V
This bit is set if a fault is detected on the V
This bit is set if a fault is detected on the V
This bit is set if a fault is detected on the V
This bit is set if a fault is detected on the I
This bit is set if a fault is detected on the I
This bit is set if a fault is detected on the I
This bit is set if a fault is detected on the I
D13
D12
AD5735
D11
toggle
core temperature exceeds approximately 150°C.
D10
PEC
error
MAX
MAX
MAX
MAX
D9
Ramp
active
OUT_D
OUT_C
OUT_B
OUT_A
OUT_D
OUT_C
OUT_B
OUT_A
voltage; in this case, the I
voltage; in this case, the I
voltage; in this case, the I
voltage; in this case, the I
Rev. A | Page 38 of 48
pin.
pin.
pin.
pin.
pin.
pin.
pin.
pin.
D8
Over
temp
D7
V
fault
read back on the SDO pin during every write sequence. Alterna-
tively, if the STATREAD bit is not set, the status register can be
read using the normal readback operation (see the Readback
Operation section).
OUT_D
D6
V
fault
OUT_D
OUT_C
OUT_B
OUT_A
OUT_C
fault bit is also set. See the DC-to-DC Converter V
fault bit is also set. See the DC-to-DC Converter V
fault bit is also set. See the DC-to-DC Converter V
fault bit is also set. See the DC-to-DC Converter V
D5
V
fault
OUT_B
D4
V
fault
OUT_A
D3
I
fault
OUT_D
D2
I
fault
OUT_C
Data Sheet
D1
I
fault
OUT_B
LSB
D0
I
fault
OUT_A
MAX
MAX
MAX
MAX