AD7416ARM datasheet(3/20 Pages) AD

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REV. G

AD7416/AD7417/AD7418

–3–

NOTES

1B Version applies to AD7417 only with temperature range of –40

°C to +85°C. A Version temperature range is –40°C to +125°C. For V

DD = 2.7 V, TA = 85

°C max

and temperature sensor measurement error =

±3°C.

2See Terminology.

3Refers to the input current when the part is not converting. Primarily due to reverse leakage current in the ESD protection diodes.

4Sample tested during initial release and after any redesign or process change that may affect this parameter.

5On-chip reference shuts down when external reference is applied.

6The accuracy of the temperature sensor is affected by reference tolerance. The relationship between the two is explained in the Temperature Sensor section.

Specifications subject to change without notice.

AD7416–SPECIFICATIONS (V

DD = 2.7 V to 5.5 V, GND = 0 V, REFIN = 2.5 V, unless otherwise noted.)

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

TEMPERATURE SENSOR AND ADC

Accuracy

±2.0

°CT

A = –25

°C to +100°C

(VDD = 3 V min)

±3.0

°CTA = –40°C to +125°C

(VDD = 3 V min)

Resolution

Bits

Temperature Conversion Time

µs

Update Rate, tR

400

µs

OTI Delay

× tR

Depends on Fault Queue Setting

Supply Current

1.0

2C Active

350

600

µAI2C Inactive

0.2

1.5

µA

Shutdown Mode

TOTI Default Temperature

°C

THYST Default Temperature

°C

DIGITAL INPUTS

Input High Voltage, VIH

VDD

× 0.7

VDD + 0.5

Input Low Voltage, VIL

–0.3

VDD

× 0.3

Input High Current, IIH

+0.005

+1.0

µAV

IN = 5 V

Input Low Current, IIL

–0.005

–1.0

µAVIN = 0 V

Input Capacitance, CIN

All Digital Inputs

DIGITAL OUTPUTS

Output Low Voltage, VOL

0.4

IOL = 3 mA

Output High Current

µAV

OH = 5 V

Output Fall Time, tf

250

CL = 400 pF, IO = 3 mA

OS Output Low Voltage, VOL

0.8

IOUT = 4 mA

AC ELECTRICAL CHARACTERISTICS

AD7416/AD7417/AD7418

Serial Clock Period, t1

2.5

µs

See Figure 1

Data In Setup Time to SCL High, t2

See Figure 1

Data Out Stable after SCL Low, t3

0ns

See Figure 1

SDA Low Setup Time to SCL Low

(Start Condition), t4

See Figure 1

SDA High Hold Time after SCL High

(Stop Condition), t5

See Figure 1

SDA and SCL Fall Time, t6

300

See Figure 1

NOTES

1For V

DD = 2.7 V to 3 V, TA max = 85

°C and accuracy = ±3°C.

2Sample tested during initial release and after any redesign or process change that may affect this parameter.

Specifications subject to change without notice.

SCL

SDA

DATA IN

SDA

DATA OUT

Figure 1. Diagram for Serial Bus Timing

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