AD7416ARMZ datasheet(4/24 Pages) AD

4 / 24 page

AD7416/AD7417/AD7418

Rev. I | Page 4 of 24

SPECIFICATIONS

AD7417/AD7418 SPECIFICATIONS

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

Table 1.

Parameter

A Version

B Version1

Unit

Test Conditions/Comments

DC ACCURACY

Any channel

Resolution

Bits

Minimum Resolution for Which No

Missing Codes Are Guaranteed

Bits

Relative Accuracy2

±1

LSB max

This specification is typical for VDD of 3.6 V to 5.5 V

Differential Nonlinearity2

±1

LSB max

This specification is typical for VDD of 3.6 V to 5.5 V

Gain Error2

±3

LSB max

External reference

±10

LSB max

Internal reference

Gain Error Match2

±0.6

LSB max

AD7417 only

Offset Error2

±4

LSB max

Offset Error Match2

±0.7

LSB max

AD7417 only

ANALOG INPUTS

Input Voltage Range

VREF

V max

V min

Input Leakage Current3

±1

μA max

Input Capacitance

pF max

TEMPERATURE SENSOR1

Measurement Error

Ambient Temperature 25°C

±2

±1

°C max

TMIN to TMAX

±3

±2

°C max

Temperature Resolution

1/4

°C/LSB

CONVERSION RATE

Track-and-Hold Acquisition Time4

400

ns max

Source impedance < 10 Ω

Conversion Time

Temperature Sensor

μs max

Typically 27 μs

Channel 1 to Channel 4

μs max

Typically 10 μs

REFERENCE INPUT5,6

REFIN Input Voltage Range

2.625

V max

2.5 V + 5%

2.375

V min

2.5 V − 5%

Input Impedance

kΩ min

Input Capacitance

pF max

ON-CHIP REFERENCE

Nominal 2.5 V

Reference Error6

±25

mV max

Temperature Coefficient6

ppm/°C typ

DIGITAL INPUTS

Input High Voltage, VIH

VDD × 0.7

V min

Input Low Voltage, VIL

VDD × 0.3

V max

Input Leakage Current

μA max

DIGITAL OUTPUTS

Output Low Voltage, VOL

0.4

V max

IOL = 3 mA

Output High Current

μA max

VOH = 5 V

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