EVAL-AD7417 View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

EVAL-AD7417

10-Bit Digital Temperature Sensor (AD7416) and Four Single-Channel ADCs (AD7417/AD7418)

Analog Devices 

AD7416/AD7417/AD7418

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 VDD = 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 (VDD = 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

°C

± 3.0

°C

Resolution

Temperature Conversion Time

Update Rate, tR

OTI Delay

Supply Current

TOTI Default Temperature

THYST Default Temperature

10

Bits

40

µs

400

µs

1 × tR

6 × tR

ms

1.0

mA

350

600

µA

0.2

1.5

µA

80

°C

75

°C

DIGITAL INPUTS

Input High Voltage, VIH

Input Low Voltage, VIL

Input High Current, IIH

Input Low Current, IIL

Input Capacitance, CIN

VDD × 0.7

VDD + 0.5 V

–0.3

VDD × 0.3 V

+0.005 +1.0

µA

–0.005 –1.0

µA

20

pF

DIGITAL OUTPUTS

Output Low Voltage, VOL

Output High Current

Output Fall Time, tf

OS Output Low Voltage, VOL

0.4

V

1

µA

250

ns

0.8

V

AC ELECTRICAL CHARACTERISTICS2

Serial Clock Period, t1

2.5

Data In Setup Time to SCL High, t2

50

Data Out Stable after SCL Low, t3

0

SDA Low Setup Time to SCL Low

(Start Condition), t4

50

SDA High Hold Time after SCL High

(Stop Condition), t5

50

SDA and SCL Fall Time, t6

µs

ns

ns

ns

ns

300

ns

NOTES

1For VDD = 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.

TA = –25°C to +100°C

(VDD = 3 V min)1

TA = –40°C to +125°C

(VDD = 3 V min)1

Depends on Fault Queue Setting

I2C Active

I2C Inactive

Shutdown Mode

VIN = 5 V

VIN = 0 V

All Digital Inputs

IOL = 3 mA

VOH = 5 V

CL = 400 pF, IO = 3 mA

IOUT = 4 mA

AD7416/AD7417/AD7418

See Figure 1

See Figure 1

See Figure 1

See Figure 1

See Figure 1

See Figure 1

REV. G

t1

SCL

t4

t2

t5

SDA

DATA IN

t3

SDA

DATA OUT

t6

Figure 1. Diagram for Serial Bus Timing

–3–

Share Link: