AD7225

Rev. C | Page 3 of 24

SPECIFICATIONS

Parameter

, unless otherwise noted. All specifications

Table 1.

K, B

Versions2

L, C

Versions2

Unit

Conditions/Comments

STATIC PERFORMANCE

Resolution

8

8

Bits

Total Unadjusted Error

±2

±1

LSB max

Relative Accuracy

±1

±1/2

LSB max

Differential Nonlinearity

±1

±1

LSB max

Guaranteed monotonic

Full-Scale Error

±1

±1/2

LSB max

Full-Scale Temperature Coefficient

±5

±5

ppm/°C typ

Zero Code Error

±30

±20

mV max

Zero Code Error Temperature Coefficient

±30

±30

μV/°C typ

REFERENCE INPUT

Voltage Range

V min to V max

Input Resistance

11

11

kΩ min

Input Capacitance3

50

50

pF max

Occurs when each DAC is loaded with all 1s

Channel-to-Channel Isolation3

60

60

dB min

AC Feedthrough3

−70

−70

dB max

DIGITAL INPUTS

2.4

2.4

V min

0.8

0.8

V max

Input Leakage Current

±1

±1

μA max

Input Capacitance3

8

8

pF max

Input Coding

Binary

Binary

DYNAMIC PERFORMANCE

Voltage Output Slew Rate3

2.5

2.5

V/μs min

Voltage Output Settling Time3

4

4

μs max

Digital Feedthrough3

50

50

nV sec typ

Code transition all 0s to all 1s

Digital Crosstalk3

50

50

nV sec typ

Code transition all 0s to all 1s

Minimum Load Resistance

2

2

kΩ min

POWER SUPPLIES

11.4/16.5

11.4/16.5

V min to V max

For specified performance

10

10

mA max

9

9

mA max

SWITCHING CHARACTERISTICS3, 4

50

50

ns min

Write pulse width

0

0

ns min

Address to write setup time

0

0

ns min

Address to write hold time

50

50

ns min

Data valid to write setup time

0

0

ns min

Data valid to write hold time

50

50

ns min

Load DAC pulse width

1

Maximum possible reference voltage.

2

Temperature range is as follows for all versions: −40°C to +85°C.

3

Sample tested at 25°C to ensure compliance.

4

Switching characteristics apply for single-supply and dual-supply operation.