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Data Sheet

AD5380

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 TMIN to TMAX,

unless otherwise noted.

Table 1.

Parameter

AD5380-51

Unit

Test Conditions/Comments

ACCURACY

Resolution

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

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

TMIN to TMAX

Gain Temperature Coefficient3

ppm FSR/°C typ

DC Crosstalk3

LSB max

REFERENCE INPUT/OUTPUT

Reference Input3

Reference Input Voltage

2.5

±1% for specified performance, AVDD = 2 × REFIN + 50 mV

DC Input Impedance

MΩ min

Typically 100 MΩ

Input Current

±1

µA max

Typically ±30 nA

Reference Range

1 to VDD/2

V min/max

Reference Output4

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 TC3

±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 CHARACTERISTICS3

Output Voltage Range2

0/AVDD

V min/max

Short-Circuit Current

mA max

Load Current

±1

mA max

Capacitive Load Stability

RL = ∞

200

pF max

RL = 5 kΩ

1000

pF max

DC Output Impedance

0.6

Ω max

MONITOR PIN

Output Impedance

kΩ typ

Three-State Leakage Current

100

nA typ

LOGIC INPUTS (EXCEPT SDA/SCL)3

DVDD = 2.7 V to 5.5 V

VIH, Input High Voltage

V min

VIL, Input Low Voltage

DVDD > 3.6 V

0.8

V max

DVDD ≤ 3.6 V

0.6

V max

Input Current

±1

µA max

Total for all pins; TA = TMIN to TMAX

Pin Capacitance

pF max

Rev. D | Page 5 of 40

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