Data Sheet
AD5444/AD5446
Rev. E | Page 3 of 28
SPECIFICATIONS
VDD = 2.5 V to 5.5 V, VREF = 10 V, IOUT2 = 0 V. Temperature range for Y version: 40°C to +125°C. All specifications TMIN to TMAX,
unless otherwise noted. DC performance measured with OP177, and ac performance measured with AD8038, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Conditions
STATIC PERFORMANCE
AD5444
Resolution
12
Bits
Relative Accuracy
±0.5
LSB
Differential Nonlinearity
±1
LSB
Guaranteed monotonic
Total Unadjusted Error (TUE)
±1
LSB
Gain Error
±0.5
LSB
AD5446
Resolution
14
Bits
Relative Accuracy
±2
LSB
Differential Nonlinearity
1/+2
LSB
Guaranteed monotonic
Total Unadjusted Error (TUE)
±4
LSB
Gain Error
±2.5
LSB
Gain Error Temperature Coeff
icient1±2
ppm FSR/°C
Output Leakage Current
±1
nA
Data = 0x0000, TA = 25°C, IOUT1
±10
nA
Data = 0x0000, TA = 40°C to +125°C, IOUT1
Reference Input Range
±10
V
VREF Input Resistance
7
9
11
k
Input resistance TC = 50 ppm/°C
RFB Feedback Resistance
7
9
11
k
Input resistance TC = 50 ppm/°C
Input Capacitance
Zero-Scale Code
18
22
pF
Full-Scale Code
18
22
pF
Input High Voltage, VIH
2.0
V
VDD = 3.6 V to 5 V
1.7
V
VDD = 2.5 V to 3.6 V
Input Low Voltage, VIL
0.8
V
VDD = 2.7 V to 5.5 V
0.7
V
VDD = 2.5 V to 2.7 V
Output High Voltage, VOH
VDD 1
V
VDD = 4.5 V to 5 V, ISOURCE = 200 A
VDD 0.5
V
VDD = 2.5 V to 3.6 V, ISOURCE = 200 A
Output Low Voltage, VOL
0.4
V
VDD = 4.5 V to 5 V, ISINK = 200 A
0.4
V
VDD = 2.5 V to 3.6 V, ISINK = 200 A
Input Leakage Current, IIL
±1
nA
TA = 25°C
±10
nA
TA = 40°C to +125°C
Input Capacitance
10
pF