AD5693R datasheet(4/26 Pages) AD

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AD5693R/AD5692R/AD5691R/AD5693

Data Sheet

Rev. D | Page 4 of 26

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

REFERENCE OUTPUT

Output Voltage

2.4975

2.5025

At ambient temperature

Voltage Reference TC3

See the Terminology section

A Grade

ppm/°C

B Grade

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

240

nV/√Hz

At ambient temperature, f = 10 kHz, CL = 10 nF

Capacitive Load Stability

µF

RL = 2 kΩ

Load Regulation Sourcing

µV/mA

At ambient temperature, VDD ≥ 3 V

Load Regulation Sinking

µV/mA

At ambient temperature

Output Current Load Capability

±5

VDD ≥ 3 V

Line Regulation

µV/V

At ambient temperature

Thermal Hysteresis

125

ppm

First cycle

ppm

Additional cycles

REFERENCE INPUT

Reference Current

µA

VREF = VDD = VLOGIC = 5.5 V, gain = 1

µA

VREF = VDD = VLOGIC = 5.5 V, gain = 2

Reference Input Range4

VDD

Reference Input Impedance

120

kΩ

Gain = 1

kΩ

Gain = 2

LOGIC INPUTS

IIN, Input Current

±1

µA

Per pin

±3

µA

SDA and SCL pins

VINL, Input Low Voltage4

0.3 × VDD

VINH, Input High Voltage4

0.7 × VDD

CIN, Pin Capacitance

LOGIC OUTPUTS (SDA)4

Output Low Voltage, VOL

0.4

ISINK = 200 μA

Output High Voltage, VOH

VDD − 0.4

ISOURCE = 200 μA

Pin Capacitance

POWER REQUIREMENTS

VLOGIC5

1.62

5.5

ILOGIC5

0.25

µA

VIH = VLOGIC or VIL = GND

VDD

2.7

5.5

Gain = 1

VREF + 1.5

5.5

Gain = 2

IDD 6

VIH = VDD, VIL = GND

Normal Mode7

350

500

µA

Internal reference enabled

110

180

µA

Internal reference disabled

Power-Down Modes8

µA

Linearity calculated using a reduced code range: AD5693R/AD5693 (Code 512 to Code 65,535); AD5692R (Code 128 to Code 16,384); AD5691R (Code 32 to Code 4096).

Output unloaded.

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 with 20 Ω, 1 mA generates 20 mV. See Figure 36 for more details.

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

Substitute VLOGIC for VDD if the device includes a VLOGIC pin.

The VLOGIC pin is not available on all models.

If the VLOGIC pin is not available, IDD = IDD + ILOGIC.

Interface inactive. DAC active. DAC output unloaded.

DAC powered down.

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