Datasheet

Data Sheet AD5625R/AD5645R/AD5665R, AD5625/AD5665
Rev. C | Page 3 of 36
SPECIFICATIONS
SPECIFICATIONS—AD5665R/AD5645R/AD5625R
V
DD
= 2.7 V to 5.5 V; R
L
= 2 kΩ to GND; C
L
= 200 pF to GND; V
REFIN
= V
DD
; all specifications T
MIN
to T
MAX
, unless otherwise noted.
Table 2.
A Grade B Grade
Parameter
Min
Typ
Max
Min
Typ
Max
Unit
Test Conditions/Comments
1
STATIC PERFORMANCE
2
AD5665R
Resolution 16 Bits
Relative Accuracy ±8 ±16 LSB
Differential Nonlinearity ±1 LSB Guaranteed monotonic by design
AD5645R
Resolution 14 Bits
Relative Accuracy ±2 ±4 LSB
Differential Nonlinearity ±0.5 LSB Guaranteed monotonic by design
AD5625R
Resolution 12 12 Bits
Relative Accuracy ±1 ±4 ±0.5 ±1 LSB
Differential Nonlinearity
±1
±0.25
LSB
Guaranteed monotonic by design
Zero-Code Error 2 10 2 10 mV All 0s loaded to DAC register
Offset Error ±1 ±10 ±1 ±10 mV
Full-Scale Error −0.1 ±0.5 −0.1 ±0.5 % FSR All 1s loaded to DAC register
Gain Error ±0.1 ±1.25 ±0.1 ±1 % FSR
Zero-Code Error Drift ±2 ±2 µV/°C
Gain Temperature Coefficient ±2.5 ±2.5 ppm Of FSR/°C
DC Power Supply Rejection
Ratio
−100 −100 dB DAC code = midscale; V
DD
= 5 V ± 10%
DC Crosstalk (External
Reference)
15 15 µV Due to full-scale output change,
R
L
= 2 kΩ to GND or V
DD
10 10 µV/mA Due to load current change
8 8 µV Due to powering down (per channel)
DC Crosstalk (Internal
Reference)
25 25 µV Due to full-scale output change,
R
L
= 2 kΩ to GND or V
DD
20 20 µV/mA Due to load current change
10 10 µV Due to powering down (per channel)
OUTPUT CHARACTERISTICS
3
Output Voltage Range 0 V
DD
0 V
DD
V Internal reference disabled
0 2 ×
V
REF
2 ×
V
REF
Internal reference enabled
Capacitive Load Stability 2 2 nF R
L
= ∞
10 10 nF R
L
= 2 kΩ
DC Output Impedance 0.5 0.5 Ω
Short-Circuit Current 30 30 mA V
DD
= 5 V
Power-Up Time
4
4
µs
Coming out of power-down mode;
V
DD
= 5 V
REFERENCE INPUTS
Reference Current 210 260 210 260 µA V
REF
= V
DD
= 5.5 V
Reference Input Range
0.75
V
DD
0.75
V
DD
V
Reference Input Impedance 26 26 kΩ