ADT7318 View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

ADT7318

±0.5°C Accurate Digital Temperature Sensor and Quad Voltage Output 12-/10-/8-Bit DACs

Analog Devices 

ADT7316/ADT7317/ADT7318

Parameter1

Min

CONVERSION TIMES

Slow ADC

VDD

Internal Temperature

External Temperature

Fast ADC

VDD

Internal Temperature

External Temperature

ROUND ROBIN UPDATE RATE4

Slow ADC at 25°C

Fast ADC at 25°C

DAC EXTERNAL REFERENCE INPUT5

VREF Input Range

1

VREF Input Range

0.25

VREF Input Impedance

37

74

Reference Feedthrough

Channel-to-Channel Isolation

ON-CHIP REFERENCE

Reference Voltage5

Temperature Coefficient5

OUTPUT CHARACTERISTICS5

Output Voltage6

DC Output Impedance

Short-Circuit Current

Power-Up Time

DIGITAL INPUTS5

Input Current

Input Low Voltage, VIL

Input High Voltage, VIH

Pin Capacitance

SCL, SDA Glitch Rejection

LDAC Pulse Width

2.2662

0.001

1.89

20

Typ Max

Unit

11.4

ms

712

μs

11.4

ms

712

μs

24.22

ms

1.51

ms

712

μs

44.5

μs

2.14

ms

134

μs

14.25

ms

890

μs

59.95

ms

6.52

ms

19.59

ms

2.89

ms

VDD

V

VDD

V

45

kΩ

90

kΩ

>10

MΩ

−90

dB

−75

dB

2.28 2.2938

80

V

ppm/°C

VDD to 0.001 V

0.5

Ω

25

mA

16

mA

2.5

μs

5

μs

±1

μA

0.8

V

V

3

10

pF

50

ns

ns

Conditions/Comments

Single channel mode.

Averaging (16 samples) on.

Averaging off.

Averaging (16 samples) on.

Averaging off.

Averaging (16 samples) on

Averaging off.

Averaging (16 samples) on.

Averaging off.

Averaging (16 samples) on.

Averaging off.

Averaging (16 samples) on.

Averaging off.

Time to complete one measurement cycle

through all channels.

Averaging on.

Averaging off.

Averaging on.

Averaging off.

Buffered reference mode.

Unbuffered reference mode.

Unbuffered reference mode.

0 V to 2 VREF output range.

Unbuffered reference mode.

0 V to VREF output range.

Buffered reference mode and power-down

mode.

Frequency = 10 kHz.

Frequency = 10 kHz.

This is a measure of the minimum and maximum

drive capability of the output amplifier.

VDD = 5 V.

VDD = 3 V.

Coming out of power-down mode. VDD = 5 V.

Coming out of power-down mode. VDD = 3.3 V.

VIN = 0 V to VDD.

All digital inputs.

Input filtering suppresses noise spikes of less than

50 ns.

Edge triggered input.

Rev. B | Page 4 of 44

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