Datasheet

AD5346/AD5347/AD5348
Rev. 0 | Page 3 of 24
SPECIFICATIONS
Table 1. 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 noted
B Version
1
Parameter
2
Min Typ Max Unit Conditions/Comments
DC PERFORMANCE
3,4
AD5346
Resolution 8 Bits
Relative Accuracy ±0.15 ±1 LSB
Differential Nonlinearity ±0.02 ±0.25 LSB Guaranteed monotonic by design over all codes
AD5347
Resolution 10 Bits
Relative Accuracy ±0.5 ±4 LSB
Differential Nonlinearity ±0.05 ±0.5 LSB Guaranteed monotonic by design over all codes
AD5348
Resolution 12 Bits
Relative Accuracy ±2 ±16 LSB
Differential Nonlinearity ±0.2 ±1 LSB Guaranteed monotonic by design over all codes
Offset Error ±0.4 ±3 % of FSR
Gain Error ±0.1 ±1 % of FSR
Lower Deadband
5
10 60 mV Lower deadband exists only if offset error is negative
Upper Deadband
5
10 60 mV V
DD
= 5 V; upper deadband exists only if V
REF
= V
DD
Offset Error Drift
6
–12 ppm of FSR/°C
Gain Error Drift
6
–5 ppm of FSR/°C
DC Power Supply Rejection
Ratio
6
–60 dB ∆V
DD
= ±10%
DC Crosstalk
6
200 µV
R
L
= 2 kΩ to GND, 2 kΩ to V
DD
; C
L
= 200 pF to GND;
Gain = +1
DAC REFERENCE INPUT
6
V
REF
Input Range 1 V
DD
V Buffered reference mode
V
REF
Input Range 0.25 V
DD
V Unbuffered reference mode
V
REF
Input Impedance >10 MΩ Buffered reference mode and power-down mode
90 kΩ Gain = +1; input impedance = R
DAC
45 kΩ Gain = +2; input impedance = R
DAC
Reference Feedthrough –90 dB Frequency = 10 kHz
Channel-to-Channel Isolation –75 dB Frequency = 10 kHz
OUTPUT CHARACTERISTICS
6
Minimum Output Voltage
4, 7
0.001 V min Rail-to-rail operation
Maximum Output Voltage
4, 7
V
DD
–
0.001
V max
DC Output Impedance 0.5 Ω
Short Circuit Current 25 mA V
DD
= 5 V
16 mA V
DD
= 3 V
Power-Up Time 2.5 µs Coming out of power-down mode; V
DD
= 5 V
5 µs Coming out of power-down mode; V
DD
= 3 V
LOGIC INPUTS
6
Input Current ±1 µA
V
IL
, Input Low Voltage 0.8 V V
DD
= 5 V ±10%
0.7 V V
DD
= 3 V ±10%
0.6 V V
DD
= 2.5 V
V
IH
, Input High Voltage 1.7 V V
DD
= 2.5 V to 5.5 V
Pin Capacitance 5 pF