Datasheet

AD5380 Data Sheet
Rev. C | Page 4 of 40
SPECIFICATIONS
AD5380-5 SPECIFICATIONS
AVDD = 4.5 V to 5.5 V; DVDD = 2.7 V to 5.5 V, AGND = DGND = 0 V; External REFIN = 2.5 V; all specifications T
MIN
to T
MAX
,
unless otherwise noted.
Table 2.
Parameter AD5380-5
1
Unit Test Conditions/Comments
ACCURACY
Resolution 14 Bits
Relative Accuracy (INL)
2
±4
LSB max
±1 LSB typical
Differential Nonlinearity (DNL) –1/+2 LSB max Guaranteed monotonic by design over temperature.
Zero-Scale Error 4 mV max
Offset Error ±4 mV max Measured at code 32 in the linear region.
Offset Error TC ±5 µV/°C typ
Gain Error ±0.05 % FSR max At 25°C
±0.06 % FSR max T
MIN
to T
MAX
Gain Temperature Coefficient
3
2 ppm FSR/°C typ
DC Crosstalk
3
1 LSB max
REFERENCE INPUT/OUTPUT
Reference Input
3
Reference Input Voltage 2.5 V ±1% for specified performance, AVDD = 2 × REFIN + 50 mV
DC Input Impedance 1 MΩ min Typically 100 MΩ
Input Current ±1 µA max Typically ±30 nA
Reference Range
1 to V
DD
/2
V min/max
Reference Output
4
Enabled via CR10 in the AD5380 control register.
CR12 selects the reference voltage.
Output Voltage 2.495/2.505 V min/max At ambient,. CR12 = 1, optimized for 2.5 V operation.
1.22/1.28 V min/max CR12 = 0
Reference TC
3
±10 ppm max Temperature range: +25°C to +85°C
±15 ppm max Temperature range: −40°C to +85°C
Output Impedance 800 Ω typ
OUTPUT CHARACTERISTICS
3
Output Voltage Range
2
0/AVDD V min/max
Short-Circuit Current 40 mA max
Load Current ±1 mA max
Capacitive Load Stability
R
L
= ∞ 200 pF max
R
L
= 5 kΩ
1000
pF max
DC Output Impedance 0.6 Ω max
MONITOR PIN
Output Impedance 1 kΩ typ
Three-State Leakage Current 100 nA typ
LOGIC INPUTS (EXCEPT SDA/SCL)
3
DVDD = 2.7 V to 5.5 V
V
IH
, Input High Voltage 2 V min
V
IL
, Input Low Voltage
DVDD > 3.6 V 0.8 V max
DVDD ≤ 3.6 V 0.6 V max
Input Current ±10 µA max Total for all pins; T
A
= T
MIN
to T
MAX
Pin Capacitance
10
pF max