Datasheet

AD5308/AD5318/AD5328
Rev. F | Page 4 of 28
SPECIFICATIONS
V
DD
= 2.5 V to 5.5 V; V
REF
= 2 V; R
L
= 2 kΩ to GND; C
L
= 200 pF to GND; all specifications T
MIN
to T
MAX
, unless otherwise specified.
Table 1.
A Version
1
B Version
1
Parameter
2
Min Typ Max Min Typ Max Unit Conditions/Comments
DC PERFORMANCE
3, 4
AD5308
Resolution 8 8 Bits
Relative Accuracy ±0.15 ±1 ±0.15 ±0.75 LSB
Differential Nonlinearity ±0.02 ±0.25 ±0.02 ±0.25 LSB Guaranteed monotonic by
design over all codes
AD5318
Resolution 10 10 Bits
Relative Accuracy ±0.5 ±4 ±0.5 ±3 LSB
Differential Nonlinearity ±0.05 ±0.50 ±0.05 ±0.50 LSB Guaranteed monotonic by
design over all codes
AD5328
Resolution 12 12 Bits
Relative Accuracy ±2 ±16 ±2 ±12 LSB
Differential Nonlinearity ±0.2 ±1.0 ±0.2 ±1.0 LSB Guaranteed monotonic by
design over all codes
Offset Error ±5 ±60 ±5 ±60 mV V
DD
= 4.5 V, gain = 2, see
Figure 27 and Figure 28
Gain Error ±0.30 ±1.25 ±0.30 ±1.25 % of FSR V
DD
= 4.5 V, gain = 2, see
Figure 27 and Figure 28
Lower Deadband
5
10 60 10 60 mV Lower deadband exists only
if offset error is negative, see
Figure 27
Upper Deadband
5
10 60 10 60 mV Upper deadband exists only
if V
REF
= V
DD
and offset plus
gain error is positive, see
Figure 28
Offset Error Drift
6
−12 −12 ppm of
FSR/°C
Gain Error Drift
6
−5 −5 ppm of
FSR/°C
DC Power Supply Rejection Ratio
6
−60 −60 dB V
DD
= ±10%
DC Crosstalk
6
200 200 μV R
L
= 2 kΩ to GND or V
DD
DAC REFERENCE INPUTS
6
V
REF
Input Range 1.0 V
DD
1.0 V
DD
V Buffered reference mode
0.25 V
DD
0.25 V
DD
V Unbuffered reference mode
V
REF
Input Impedance (R
DAC
) >10.0 >10.0 MΩ Buffered reference mode
and power-down mode
37.0 45.0 37.0 45.0 kΩ Unbuffered reference mode,
0 V to V
REF
output range
18.0 22.0 18.0 22.0 kΩ Unbuffered reference mode,
0 V to 2 V
REF
output range
Reference Feedthrough −70.0 −70.0 dB Frequency = 10 kHz
Channel-to-Channel Isolation −75.0 −75.0 dB Frequency = 10 kHz
OUTPUT CHARACTERISTICS
6
Minimum Output Voltage
7
0.001 0.001 V This is a measure of the
minimum and maximum
Maximum Output Voltage
7
V
DD
−
0.001
V
DD
− 0.001 V Drive capability of the
output amplifier
DC Output Impedance 0.5 0.5 Ω