Data Sheet

AD5683R/AD5682R/AD5681R/AD5683

Rev. D | Page 5 of 28

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

REFERENCE OUTPUT

Output Voltage

2.4975

2.5025

V

At ambient

See the Terminology section

A-Grade

5

20

ppm/°C

B-Grade

2

5

ppm/°C

Output Impedance

0.05

Ω

Output Voltage Noise

16.5

µV p-p

0.1 Hz to 10 Hz

Output Voltage Noise Density

250

nV/√Hz

Capacitive Load Stability

5

µF

Load Regulation Sourcing

50

µV/mA

Load Regulation Sinking

30

µV/mA

At ambient

Output Current Load Capability

±5

mA

Line Regulation

80

µV/V

At ambient

Thermal Hysteresis

125

ppm

First cycle

25

ppm

Additional cycles

REFERENCE INPUT

Reference Current

26

µA

47

µA

Reference Input Range

1

V

Reference Input Impedance

120

kΩ

Gain = 1

60

kΩ

Gain = 2

LOGIC INPUTS

±1

µA

Per pin

V

V

2

pF

0.4

V

V

Pin Capacitance

4

pF

POWER REQUIREMENTS

1.62

5.5

V

0.25

3

µA

2.7

5.5

V

Gain = 1

5.5

V

Gain = 2

350

500

µA

Internal reference enabled

110

180

µA

Internal reference disabled

2

µA

1

Linearity is calculated using a reduced code range: AD5683R and AD5683 (Code 512 to Code 65,535); AD5682R (Code 128 to Code 16,384); AD5681R (Code 32 to

Code 4096). Output unloaded.

2

When drawing a load current at either rail, the output voltage headroom, with respect to that rail, is limited by the 20 Ω typical channel resistance of the output

devices; for example, when sinking 1 mA, the minimum output voltage = 20 Ω, 1 mA generates 20 mV. See Figure 38 (Headroom/Footroom vs. Load Current).

3

Reference temperature coefficient is calculated as per the box method. See the Terminology section for more information.

4

5

6

7

Interface inactive. DAC active. DAC output unloaded.

8

DAC powered down.