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PCA8591P

8-bit A/D and D/A converter

Philips Electronics 

Philips Semiconductors

8-bit A/D and D/A converter

Product specification

PCF8591

11 DC CHARACTERISTICS

VDD = 2.5 V to 6 V; VSS = 0 V; Tamb = −40 °C to +85 °C unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

Supply

VDD

IDD

VPOR

supply voltage (operating)

supply current

standby

operating, AOUT off

operating, AOUT active

Power-on reset level

VI = VSS or VDD; no load

fSCL = 100 kHz

fSCL = 100 kHz

note 1

Digital inputs/output: SCL, SDA, A0, A1, A2

VIL

LOW level input voltage

VIH

HIGH level input voltage

IL

leakage current

A0, A1, A2

VI = VSS to VDD

SCL, SDA

VI = VSS to VDD

Ci

input capacitance

IOL

LOW level SDA output current VOL = 0.4 V

Reference voltage inputs

VREF

VAGND

ILI

RREF

reference voltage

analog ground voltage

input leakage current

input resistance

VREF > VAGND; note 2

VREF > VAGND; note 2

pins VREF and AGND

Oscillator: OSC, EXT

ILI

input leakage current

fOSC

oscillator frequency

2.5

−

−

1

−

125

−

0.45

0.8

−

0

−

0.7 × VDD −

−250

−

−1

−

−

−

3.0

−

VSS + 1.6 −

VSS

−

−250

−

−

100

−

−

0.75

−

Notes

1. The power on reset circuit resets the I2C-bus logic when VDD is less than VPOR.

2. A further extension of the range is possible, if the following conditions are fulfilled:

V-----R---E----F----+--2---V----A---G----N----D-- ≥ 0.8V, VDD – V-----R---E----F----+--2---V----A---G----N----D-- ≥ 0.4V

MAX. UNIT

6.0

V

15

µA

250

µA

1.0

mA

2.0

V

0.3 × VDD V

VDD

V

+250

nA

+1

µA

5

pF

−

mA

VDD

V

VDD − 0.8 V

+250

nA

−

kΩ

250

nA

1.25

MHz

1998 Jul 02

17

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