ADATE320 datasheet(19/78 Pages) AD

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Data Sheet

ADATE320

SPECIFICATIONS

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Rev. C | 19 of 78

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

ALARM Output Characteristics

Off State Leakage

500

Disable alarm, apply VDD to ALARM pin, and measure leakage

current

Maximum On Voltage at 200 µA

0.1

0.7

ALARM pin asserted, force 200 µA into pin and measure voltage

AC SPECIFICATIONS

Propagation Delay

0.5

µs

For OVDH: VDUTx = 0.0 V to 4.5 V step, OVDH = 4.0 V, OVDL =

−1.0 V; for OVDL: VDUTx = 0.0 V to −1.5 V step, OVDH = 4.0 V,

OVDL = −1.0 V

SERIAL PROGRAMMABLE INTERFACE (SPI) SPECIFICATIONS

Table 13.

Parameter

Min

Typ

Max

Unit

Test Level

Test Conditions/Comments

DC SPECIFICATIONS

Input Voltage

RST, CS, SCLK, SDI

Logic High

VDD − 0.7

VDD

Logic Low

0.0

0.7

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