AD7416/AD7417/AD7418
Rev. I | Page 4 of 24
SPECIFICATIONS
AD7417/AD7418 SPECIFICATIONS
V
DD
= 2.7 V to 5.5 V, GND = 0 V, REF
IN
= 2.5 V, unless otherwise noted.
Table 1.
Parameter A Version B Version
1
Unit Test Conditions/Comments
DC ACCURACY Any channel
Resolution 10 10 Bits
Minimum Resolution for Which No
Missing Codes Are Guaranteed
10 10 Bits
Relative Accuracy
2
±1 ±1 LSB max This specification is typical for V
DD
of 3.6 V to 5.5 V
Differential Nonlinearity
2
±1 ±1 LSB max This specification is typical for V
DD
of 3.6 V to 5.5 V
Gain Error
2
±3 ±3 LSB max External reference
±10 ±10 LSB max Internal reference
Gain Error Match
2
±0.6 ±0.6 LSB max AD7417 only
Offset Error
2
±4 ±4 LSB max
Offset Error Match
2
±0.7 ±0.7 LSB max AD7417 only
ANALOG INPUTS
Input Voltage Range VREF VREF V max
0 0 V min
Input Leakage Current
3
±1 ±1 A max
Input Capacitance 10 10 pF max
TEMPERATURE SENSOR
1
Measurement Error
Ambient Temperature 25°C ±2 ±1 °C max
T
MIN
to T
MAX
±3 ±2 °C max
Temperature Resolution 1/4 1/4 °C/LSB
CONVERSION RATE
Track-and-Hold Acquisition Time
4
400 400 ns max Source impedance < 10 Ω
Conversion Time
Temperature Sensor 30 30 s max Typically 27 s
Channel 1 to Channel 4 15 15 s max Typically 10 s
REFERENCE INPUT
5, 6
REF
IN
Input Voltage Range 2.625 2.625 V max 2.5 V + 5%
2.375 2.375 V min 2.5 V − 5%
Input Impedance 40 40 kΩ min
Input Capacitance 10 10 pF max
ON-CHIP REFERENCE Nominal 2.5 V
Reference Error
6
±25 ±25 mV max
Temperature Coefficient
6
80 80 ppm/°C typ
DIGITAL INPUTS
Input High Voltage, V
IH
V
DD
× 0.7 V
DD
× 0.7 V min
Input Low Voltage, V
IL
V
DD
× 0.3 V
DD
× 0.3 V max
Input Leakage Current 1 1 A max
DIGITAL OUTPUTS
Output Low Voltage, V
OL
0.4 0.4 V max I
OL
= 3 mA
Output High Current 1 1 A max V
OH
= 5 V
