AD7124-4TRUZ-EP-R7 datasheet(7/17 Pages) AD

7 / 17 page

Enhanced Product

AD7124-4-EP

Rev. 0 | Page 7 of 17

Parameter1

Min

Typ

Max

Unit

Test Conditions/Comments

EXCITATION CURRENT SOURCES (IOUT0/IOUT1)

Available on any analog input pin

Output Current

50/100/250/

500/750/1000

μA

Initial Tolerance

±4

TA = 25°C

Drift

ppm/°C

Current Matching

±0.5

Matching between IOUT0 and

IOUT1, VOUT = 0 V

Drift Matching2

ppm/°C

Line Regulation (AVDD)

%/V

AVDD = 3 V ± 5%

Load Regulation

0.2

%/V

Output Compliance2

AVSS − 0.05

AVDD − 0.37

50 μA/100 μA/250 μA/500 μA

current sources, 2% accuracy

AVSS − 0.05

AVDD − 0.48

750 μA and 1000 μA current

sources, 2% accuracy

BIAS VOLTAGE (VBIAS) GENERATOR

Available on any analog input pin

VBIAS

AVSS + (AVDD −

AVSS)/2

VBIAS Generator Start-Up Time

6.7

μs/nF

Dependent on the capacitance

connected to AINx

TEMPERATURE SENSOR

Accuracy

±0.5

°C

Sensitivity

13,584

Codes/°C

LOW-SIDE POWER SWITCH

On Resistance (RON)

Allowable Current2

Continuous current

BURNOUT CURRENTS

AIN Current

0.5/2/4

μA

Analog inputs must be buffered

DIGITAL OUTPUTS (P1 AND P2)

Output Voltage

High, VOH

AVDD − 0.6

ISOURCE = 100 μA

Low, VOL

0.4

ISINK = 100 μA

DIAGNOSTICS

Power Supply Monitor Detect Level

Analog Low Dropout Regulator (ALDO)

1.6

AVDD − AVSS ≥ 2.7 V

Digital LDO (DLDO)

1.55

IOVDD ≥ 1.75 V

Reference Detect Level

0.7

REF_DET_ERR bit active if VREF < 0.7 V

AINM/AINP Overvoltage Detect Level

AVDD + 0.04

AINM/AINP Undervoltage Detect Level

AVSS − 0.04

INTERNAL/EXTERNAL CLOCK

Internal Clock

Frequency

614.4 − 5%

614.4

614.4 + 5%

kHz

Duty Cycle

50:50

External Clock

Frequency

2.4576

MHz

Internal divide by 4

Duty Cycle Range

45:55 to 55:45

LOGIC INPUTS2

Input Voltage

Low, VINL

0.3 × IOVDD

1.65 V ≤ IOVDD < 1.9 V

0.35 × IOVDD

1.9 V ≤ IOVDD < 2.3 V

0.7

2.3 V ≤ IOVDD ≤ 3.6 V

High, VINH

0.7 × IOVDD

1.65 V ≤ IOVDD < 1.9 V

0.65 × IOVDD

1.9 V ≤ IOVDD < 2.3 V

1.7

2.3 V ≤ IOVDD < 2.7 V

2.7 V ≤ IOVDD ≤ 3.6 V

Hysteresis

0.2

0.6

1.65 V ≤ IOVDD ≤ 3.6 V

Input Currents

−1

μA

VIN = IOVDD or GND

Input Capacitance

All digital inputs

AD7124-4TRUZ-EP-R7 Datasheet(PDF) 7 Page - Analog Devices

AD7124-4TRUZ-EP-R7 Datasheet(HTML) 7 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Datasheet Download

Link URL