EVAL-AD5761RSDZ View Datasheet(PDF) - Analog Devices

Part Name

Description

MFG CO.

EVAL-AD5761RSDZ

Multiple Range, 16-/12-Bit, Bipolar/Unipolar Voltage Output DACs with 2 ppm/°C Reference

Analog Devices 

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AD5761R/AD5721R

Data Sheet

Table 13. Bipolar Output Range Possible Codes

Straight Binary

Decimal Code

1111

7

1110

6

1101

5

1100

4

1011

3

1010

2

1001

1

1000

0

0111

−1

0110

−2

0101

−3

0100

−4

0011

−5

0010

−6

0001

−7

0000

−8

Twos Complement

0111

0110

0101

0100

0011

0010

0001

0000

1111

1110

1101

1100

1011

1010

1001

1000

READBACK CONTROL REGISTER

The readback control register operation provides the contents of the control register by setting the register address to 1100. Table 14

outlines the 24-bit shift register for this command, where the last 16 bits are don’t care bits.

During the next command, the control register contents are shifted out of the SDO pin with the MSB shifted out first. Table 15 outlines

the 24-bit data read from the SDO pin, where DB23 is the first bit shifted out.

Table 14. Readback Control Register, 24-Bit Shift Register to the SDI Pin

MSB

DB[23:21]

DB20

DB[19:16]

Register address

XXX1

0

1100

LSB

DB[15:0]

Register data

Don’t care

1 X is don’t care.

Table 15. Readback Control Register, 24-Bit Data Read from the SDO Pin

MSB

LSB

DB[23:21] DB20 DB[19:16]

DB[15:13] DB12 DB11 DB[10:9] DB8 DB7 DB6 DB5 DB[4:3] DB[2:0]

Register address

Register data

XXX1

0

1100

XXXX1

SC

BO CV[1:0]

OVR B2C ETS IRO PV[1:0] RA[2:0]

1 X is don’t care.

Table 16. Readback Control Register Bit Descriptions

Bit Name

Description

SC

Short-circuit condition. The SC bit is reset at every control register write.

0: no short-circuit condition detected

1: short-circuit condition detected

BO

Brownout condition. The BO bit is reset at every control register write.

0: no brownout condition detected

1: brownout condition detected

Rev. C | Page 30 of 36

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