AD5422BREZ Analog Devices Inc, AD5422BREZ Datasheet - Page 29

• Manufacturer Part Number: AD5422BREZ
• Description: 16 Bit V, I Out DAC
• Manufacturer: Analog Devices Inc

Specifications of AD5422BREZ

• Design Resources: 16-Bit Fully Isolated Output Module Using AD5422 and ADuM1401 (CN0065) Simplified 16-Bit Voltage Output and 4 mA-to-20 mA Output Solution Using AD5422 (CN0077)
• Settling Time: 25µs
• Number Of Bits: 16
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 1
• Voltage Supply Source: Analog and Digital, Dual ±
• Power Dissipation (max): 950mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP Exposed Pad, 24-eTSSOP, 24-HTSSOP
• Number Of Channels: 1
• Resolution: 16b
• Conversion Rate: 40KSPS
• Interface Type: Serial (3-Wire, SPI, QSPI, Microwire)
• Single Supply Voltage (typ): 12/15/18/24/28V
• Dual Supply Voltage (typ): ±12/±15/±18/±24/±28V
• Architecture: R-2R
• Power Supply Requirement: Single/Dual
• Output Type: Current/Voltage
• Single Supply Voltage (min): 10.8V
• Single Supply Voltage (max): 40V
• Dual Supply Voltage (min): 0/10.8V
• Dual Supply Voltage (max): -26.4/40V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 24
• Package Type: TSSOP EP
• Rohs Compliant: Yes
• Input Channel Type: Serial
• Supply Voltage Range - Digital: 2.7V To 5.5V
• Supply Current: 3.9mA
• Digital Ic Case Style: TSSOP
• No. Of Pins: 24
• Operating Temperature Range: -40°C To +85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DATA REGISTER
The data register is addressed by setting the address word of the input shift register to 0x01. The data to be written to the data register is
entered in the D15 to D4 positions for the AD5412 and the D15 to D0 positions for the AD5422, as shown in Table 12 and Table 13.
Table 12. Programming the AD5412 Data Register
MSB
D15
Table 13. Programming the AD5422 Data Register
MSB
D15
CONTROL REGISTER
The control register is addressed by setting the address word of the input shift register to 0x55. The data to be written to the control
register is entered in the D15 to D0 positions, as shown in Table 14. The control register functions are shown in Table 15.
Table 14. Programming the Control Register
Table 15. Control Register Functions
Option
CLRSEL
OVRRNG
REXT
OUTEN
SR clock
SR step
SREN
DCEN
R2, R1, R0
Table 16. Output Range Options
R2
0
0
0
0
1
1
1
CLRSEL
MSB
D15
D14
D14
OVRRNG
D14
R1
0
0
1
1
0
1
1
D13
D13
REXT
D13
D12
D12
Description
See Table 21 for a description of the CLRSEL operation.
Setting this bit increases the voltage output range by 10% (see the AD5412/AD5422 Features section).
Setting this bit selects the external current setting resistor (see the AD5412/AD5422 Features section).
Output enable. This bit must be set to enable the outputs. The range bits select which output is functional.
Digital slew rate control (see the AD5412/AD5422 Features section).
Digital slew rate control (see the AD5412/AD5422 Features section).
Digital slew rate control enable.
Daisy chain enable.
Output range select (see Table 16).
R0
0
1
0
1
1
0
1
OUTEN
D12
D11
D11
12-bit data-word
D11
D10
D10
Output Range Selected
0 V to 5 V voltage range
0 V to 10 V voltage range
±5 V voltage range
±10 V voltage range
4 mA to 20 mA current range
0 mA to 20 mA current range
0 mA to 24 mA current range
D10
SR clock
D9
D9
Rev. C | Page 29 of 40
16-bit data-word
D9
D8
D8
D8
D7
D7
D7
D6
D6
SR step
D6
D5
D5
D5
D4
D4
SREN
D4
D3
D3
X
DCEN
D3
AD5412/AD5422
D2
D2
X
D2
R2
D1
D1
X
D1
R1
LSB
D0
LSB
D0
LSB
D0
X
R0