ADATE320 datasheet(20/83 Pages) AD

20 / 83 page

Data Sheet

ADATE320

Rev. B | Page 19 of 82

VREF, VREFGND, AND DUTGND REFERENCE INPUT PINS SPECIFICATIONS

Table 10.

Parameter

Min

Typ

Max

Unit

Test

Level

Test Conditions/Comments

DC SPECIFICATIONS

VREF Input Voltage Range

2.475

2.500

2.525

Provided externally, VREF = 2.500 V, VREFGND =

0.000 V

VREF Input Bias Current

µA

Tested with 2.500 V applied

DUTGND Input Voltage Range,

Referenced to AGND

−0.1

+0.1

DUTGND Input Bias Current

−10

+10

µA

Tested at −100 mV and +100 mV

TEMPERATURE MONITOR SPECIFICATIONS

Table 11.

Parameter

Min

Typ

Max

Unit

Test

Level

Test Conditions/Comments

DC SPECIFICATIONS

Temperature Sensor Gain

mV/K

3.00 V at room temperature, 300 K (23°C)

Temperature Sensor Accuracy

±10

°C

20°C < TC < 80°C, VCCTHERM only (TJ = TC)

ALARM FUNCTIONS SPECIFICATIONS

Table 12.

Parameter

Min

Typ

Max

Unit

Test

Level

Test Conditions/Comments

DC SPECIFICATIONS

Overvoltage Alarm High, OVDH

Functional Voltage Range

−1.0

+5.0

OVDL DAC set to DAC Code 0x0000 (−2.5 V)

Uncalibrated Error at −1.0 V

−300

+200

Includes 5% uncalibrated gain ±250 mV offset

Uncalibrated Error at 5.0 V

500

Includes 5% uncalibrated gain ±250 mV offset

Offset Voltage TC

±0.5

mV/°C

Gain

1.05

V/V

Gain derived from measurements at DAC Code 0x4000

(0.0 V) and DAC Code 0x8CCC (3.0 V); based on an

ideal DAC transfer function (see Table 24)

Hysteresis

140

Hysteresis is only applied coming out of alarm

Overvoltage Alarm Low, OVDL

Functional Voltage Range

−2.0

+4.0

OVDH DAC set to DAC Code 0xFFFF (7.5 V)

Uncalibrated Error at −2.0 V

−350

+150

Includes 5% uncalibrated gain ±250 mV offset

Uncalibrated Error at 4.0 V

−50

+450

Includes 5% uncalibrated gain ±250 mV offset

Offset Voltage TC

±0.5

mV/°C

Gain

1.05

V/V

Gain derived from measurements at DAC Code 0x4000

(0.0 V) and DAC Code 0x8CCC (3.0 V); based on an

ideal DAC transfer function (see Table 24)

Hysteresis

140

Hysteresis is only applied coming out of alarm

Thermal Alarm

Setpoint Error

±10

°C

Relative to default alarm value, TJ = 100°C

Thermal Hysteresis

°C

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