LTC2485CDD datasheet(4/40 Pages) LINER

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LTC2485

2485fa

The

● denotes the specifications which apply over

the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIH

High Level Input Voltage

●

0.7VCC

VIL

Low Level Input Voltage

●

0.3VCC

VIL(CA1)

Low Level Input Voltage for Address Pin

●

0.05VCC

VIH(CA0/F0,CA1)

High Level Input Voltage for Address Pins

●

0.95VCC

RINH

Resistance from CA0/F0,CA1 to VCC to Set

●

Ω

Chip Address Bit to 1

RINL

Resistance from CA1 to GND to Set

●

Ω

Chip Address Bit to 0

RINF

Resistance from CA0/F0, CA1 to VCC or

●

Ω

GND to Set Chip Address Bit to Float

Digital Input Current

●

–10

µA

VHYS

Hysteresis of Schmitt Trigger Inputs

(Note 5)

0.05VCC

VOL

Low Level Output Voltage SDA

I = 3mA

●

0.4

tOF

Output Fall Time from VIHMIN to VILMAX

Bus Load CB 10pF to 400pF (Note 14) ●

20+0.1CB

250

tSP

Input Spike Suppression

●

IIN

Input Leakage

0.1VCC ≤ VIN ≤ VCC

●

µA

Capacitance for Each I/O Pin

●

Capacitance Load for Each Bus Line

●

400

CCAX

External Capacitive Load on Chip

●

Address Pins (CA0/F0,CA1) for Valid Float

VIH(EXT,OSC)

High Level CA0/F0 External Oscillator

2.7V

≤ VCC < 5.5V

●

VCC – 0.5V

VIL(EXT,OSC)

Low Level CA0/F0 External Oscillator

2.7V

≤ VCC < 5.5V

●

0.5

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VCC

Supply Voltage

●

2.7

5.5

ICC

Supply Current

Conversion Mode (Note 11)

●

160

250

µA

Sleep Mode (Note 11)

●

µA

The

● denotes the specifications which apply over the full operating temperature

range, otherwise specifications are at TA = 25°C. (Note 3)

POWER REQUIRE E TS

I2C DIGITAL I PUTS A D DIGITAL OUTPUTS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

CS (IN+)IN+ Sampling Capacitance

CS (IN

–)IN– Sampling Capacitance

CS (VREF)VREF Sampling Capacitance

IDC_LEAK (IN

+)IN+ DC Leakage Current

Sleep Mode, IN+ = GND

●

–10

IDC_LEAK (IN–)IN– DC Leakage Current

Sleep Mode, IN– = GND

●

–10

IDC_LEAK (VREF)REF+, REF– DC Leakage Current

Sleep Mode, VREF = VCC

●

–100

100

The

● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 3)

A ALOG I PUT A D REFERE CE

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