AD7873ACP datasheet(4/28 Pages) AD

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AD7873

Rev. D | Page 4 of 28

Parameter

AD7873A1

AD7873B

Unit

Test Conditions/Comments

LOGIC OUTPUTS

Output High Voltage, VOH

VCC – 0.2

V min

ISOURCE = 250 µA; VCC = 2.2 V to 5.25 V

Output Low Voltage, VOL

0.4

V max

ISINK = 250 µA

PENIRQ Output Low Voltage, VOL

0.4

V max

100 kΩ pull-up; ISINK = 250 µA

Floating-State Leakage Current

±10

µA max

Floating-State Output Capacitance5

pF max

Output Coding

Straight (Natural) Binary

CONVERSION RATE

Conversion Time

DCLK cycles max

Track-and-Hold Acquisition Time

DCLK cycles min

Throughput Rate

125

kSPS max

POWER REQUIREMENTS

+VCC (Specified Performance)

2.7/3.6

V min/max

Functional from 2.2 V to 5.25 V

ICC6

Digital I/Ps = 0 V or VCC

Normal Mode (fSAMPLE = 125 kSPS)

380

µA max

Internal reference off. VCC = 3.6 V,

240 µA typ

670

µA typ

Internal reference on. VCC = 3.6 V

Normal Mode (fSAMPLE = 12.5 kSPS)

170

µA typ

Internal reference off. VCC = 2.7 V,

fDCLK = 200 kHz

Normal Mode (Static)

150

µA typ

Internal reference off. VCC = 3.6 V

580

µA typ

Internal reference on. VCC = 3.6 V

Shutdown Mode (Static)

µA max

200 nA typ

Power Dissipation6

Normal Mode (fSAMPLE = 125 kSPS)

1.368

mW max

VCC = 3.6 V. Internal reference disabled

2.412

mW typ

VCC = 3.6 V. Internal reference enabled

Shutdown

3.6

µW max

VCC = 3.6 V

1 Temperature range as follows: A, B Versions: –40°C to +85°C.

2 See the

section.

Terminology

3 Difference between Temp0 and Temp1 measurement. No calibration necessary.

4 Temperature Drift is –2.1 mV/°C.

5 Sample tested @ 25°C to ensure compliance.

6 See the Power vs. Throughput Rate section.

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