ISL90843 Ver la hoja de datos (PDF) - Intersil

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Fabricante

ISL90843

Low Noise, Low Power, I2C® Bus, 256 Taps

Intersil 

ISL90843

Absolute Maximum Ratings

Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C

Voltage at any Digital Interface Pin

with Respect to GND . . . . . . . . . . . . . . . . . . . . . -0.3V to VCC+0.3

VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V

Voltage at any DCP Pin with

Respect to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VCC

Lead Temperature (Soldering, 10s) . . . . . . . . . . . . . . . . . . . . . 300°C

IW (10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±6mA

Recommended Operating Conditions

Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C

VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V

Power Rating of each DCP . . . . . . . . . . . . . . . . . . . . . . . . . . . .5mW

Wiper Current of each DCP . . . . . . . . . . . . . . . . . . . . . . . . . . ±3.0mA

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the

device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

Analog Specifications Over recommended operating conditions unless otherwise stated.

SYMBOL

PARAMETER

TEST CONDITIONS

TYP

MIN (NOTE 1) MAX UNITS

RTOTAL RH to RL Resistance

W, U versions respectively

RH to RL Resistance Tolerance

RW

Wiper Resistance

VCC = 3.3V @ 25°C

CW

Potentiometer Capacitance (Note 15)

VOLTAGE DIVIDER MODE (0V @ RLi; VCC @ RHi; measured at RWi, unloaded; i = 0, 1, 2, or 3)

INL (Note 6) Integral Non-Linearity

10, 50

kΩ

-20

+20

%

70

Ω

25

pF

-1

1

LSB

(Note 2)

DNL (Note 5) Differential Non-Linearity

Monotonic over all tap positions

-0.5

0.5

LSB

(Note 2)

ZSerror

(Note 3)

Zero-Scale Error

W option

U option

0

1

7

LSB

(Note 2)

0

0.5

2

FSerror

(Note 4)

Full-Scale Error

W option

U option

-7

-1

-2

-1

0

LSB

(Note 2)

0

VMATCH

(Note 7)

DCP to DCP Matching

Any two DCPs at same tap position, same

-2

voltage at all RH terminals, and same voltage at

all RL terminals

2

LSB

(Note 2)

TCV (Note 8) Ratiometric Temperature Coefficient DCP register set to 80 hex

±4

ppm/°C

Operating Specifications Over the recommended operating conditions unless otherwise specified.

SYMBOL

PARAMETER

TEST CONDITIONS

MIN

ICC1

VCC Supply Current

(Volatile write/read)

10k DCPs, fSCL = 400kHz; SDA = Open; (for I2C, Active,

Read and Write States)

ICC2

VCC Supply Current

(Volatile write/read)

50k DCPs, fSCL = 400kHz; SDA = Open; (for I2C, Active,

Read and Write States)

ISB

VCC current (standby)

VCC = +5.5V, 10k DCPs, I2C Interface in Standby State

VCC = +5.5V, 50k DCPs, I2C Interface in Standby State

VCC = +3.6V, 10k DCPs, I2C Interface in Standby State

VCC = +3.6V, 50k DCPs, I2C Interface in Standby State

ILkgDig Leakage Current, at Pins A0, A1, Voltage at pin from GND to VCC

-10

SDA and SCL Pins

tDCP DCP Wiper Response Time

(Note 15)

SCL falling edge of last bit of DCP Data Byte to wiper

change

Vpor Power-On Recall Voltage

Minimum VCC at which memory recall occurs

1.8

TYP

(NOTE 1)

MAX

3.8

2.9

2.8

0.6

1.9

0.4

10

1

2.6

UNITS

mA

mA

mA

mA

mA

mA

µA

µs

V

3

FN8095.2

March 29, 2006

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