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ADT7318
(Rev.:RevPrN)

SPI/I2C® Compatible, 10-Bit Digital Temperature Sensor and Quad Voltage Output 12/10/8-Bit DAC

Analog Devices 

PRELIMINARY TECHNICAL DATA

ADT7316/ADT7317/ADT7318-SPECIFICATIONS1

(VDD=2.7 V to 5.5 V, GND=0 V, REFIN=2.25 V, unless otherwise noted)

Parameter2

Min Typ Max

Units Conditions/Comments

DAC DC PERFORMANCE3,4

ADT7318

Resolution

Relative Accuracy

Relative Accuracy

Differential Nonlinearity

ADT7317

Resolution

Relative Accuracy

Relative Accuracy

Differential Nonlinearity

ADT7316

Resolution

Relative Accuracy

Relative Accuracy

Differential Nonlinearity

Offset Error

Offset Error Match

Gain Error

Gain Error Match

Lower Deadband

Upper Deadband

Offset Error Drift6

Gain Error Drift6

DC Power Supply Rejection Ratio6

DC Crosstalk6

THERMAL CHARACTERISTICS

8

±0.15

tbd

±0.02

±1

tbd

±0.25

Bits

LSB

LSB

LSB

Excluding Offset and Gain errors

Guaranteed Monotonic by design over all codes

10

±0.5

tbd

±0.05

±4

tbd

±0.5

Bits

LSB

LSB

LSB

Excluding Offset and Gain errors

Guaranteed Monotonic by design over all codes

12

±2

tbd

±0.02

±0.4

±0.3

20

tbd

-12

-5

-60

200

±16

tbd

±0.9

±3

±0.5

±1.25

±0.5

60

tbd

Bits

LSB

LSB

LSB

% of FSR

LSB

% of FSR

LSB

mV

mV

ppm of FSR/°C

ppm of FSR/°C

dB

µV

Excluding Offset and Gain errors

Guaranteed Monotonic by design over all codes

Lower Deadband exists only if Offset Error is

Negative. See Figure 5.

Upper Deadband exists if VREF = VDD and Offset

plus Gain Error is positive. See Figure 6.

∆VDD = ±10%

RL = 2 KΩ to GND or VDD

Internal Reference used.

INTERNAL TEMPERATURE

SENSOR

Accuracy @ VDD=3.3V

Accuracy @ VDD=5V

Resolution

Long Term Drift

±2

±3

±2

±3

10

0.5

°C

°C

°C

°C

Bits

°C/1000hrs

TA = 0°C to +85°C

TA = -40°C to +125°C

TA = 0°C to +85°C

TA = -40°C to +125°C

EXTERNAL TEMPERATURE

SENSOR

Accuracy @ VDD=3.3V

Accuracy @ VDD=5V

Resolution

±2

±3

±2

±3

10

External Transistor = 2N3906.

°C

TA = 0°C to +85°C.

°C

TA = -40°C to +125°C

°C

TA = 0°C to +85°C

°C

TA = -40°C to +125°C

Bits

Update Rate, tR

Temperature Conversion Time

Output Source Current

TBD

TBD

TBD

180

11

µs

Round Robin5 enabled

µs

Round Robin disabled

µs

µA

High Level

µA

Low Level

VOLTAGE OUTPUT

8-Bit DAC Output

Resolution

Scale Factor

10-Bit DAC Output

Resolution

1

0.25

8.79

17.58

°C

mV/°C

mV/°C

°C

–2–

0-VREF Output. TA = -40°C to +125°C

0-2VREF Output. TA = -40°C to +125°C

REV. PrN

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