LTC2486IDE datasheet(4/36 Pages) LINER

4 / 36 page

LTC2486

2486f

DIGITAL INPUTS AND DIGITAL OUTPUTS The ● denotes the speciﬁcations which apply over the

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

ANALOG INPUT AND REFERENCE 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

IN+

Absolute/Common Mode IN+ Voltage

(IN+ Corresponds to the Selected Positive Input Channel)

GND – 0.3V

VCC + 0.3V

IN–

Absolute/Common Mode IN– Voltage

(IN– Corresponds to the Selected Negative Input Channel)

GND – 0.3V

VCC + 0.3V

VIN

Input Differential Voltage Range (IN+ – IN–)

●

–FS

+FS

Full Scale of the Differential Input (IN+ – IN–)

●

0.5VREF/Gain

LSB

Least Signiﬁcant Bit of the Output Code

●

FS/216

REF+

Absolute/Common Mode REF+ Voltage

●

0.1

VCC

REF–

Absolute/Common Mode REF– Voltage

●

GND

REF+ – 0.1V

VREF

Reference Voltage Range (REF+ – REF–)

●

0.1

VCC

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(REF

)

REF+ DC Leakage Current

Sleep Mode, REF+ = VCC

●

–100

100

IDC_LEAK(REF

–

)

REF– DC Leakage Current

Sleep Mode, REF– = GND

●

–100

100

tOPEN

MUX Break-Before-Make

QIRR

MUX Off Isolation

VIN = 2VP-P DC to 1.8MHz

120

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIH

High Level Input Voltage (

⎯C⎯S, F

O, SDI)

2.7V ≤ VCC ≤ 5.5V

●

VCC – 0.5

VIL

Low Level Input Voltage (

⎯C⎯S, F

O, SDI)

2.7V ≤ VCC ≤ 5.5V

●

0.5

VIH

High Level Input Voltage (SCK)

2.7V ≤ VCC ≤ 5.5V (Notes 10, 15)

●

VCC – 0.5

VIL

Low Level Input Voltage (SCK)

2.7V ≤ VCC ≤ 5.5V (Notes 10, 15)

●

0.5

IIN

Digital Input Current (

⎯C⎯S, F

O, SDI)

0V ≤ VIN ≤ VCC

●

–10

µA

IIN

Digital Input Current (SCK)

0V ≤ VIN ≤ VCC (Notes 10, 15)

●

–10

µA

CIN

Digital Input Capacitance (

⎯C⎯S, F

O, SDI)

CIN

Digital Input Capacitance (SCK)

(Notes 10, 15)

VOH

High Level Output Voltage (SDO)

IO = –800µA

●

VCC – 0.5

VOL

Low Level Output Voltage (SDO)

IO = 1.6mA

●

0.4

VOH

High Level Output Voltage (SCK)

IO = –800µA (Notes 10, 17)

●

VCC – 0.5

VOL

Low Level Output Voltage (SCK)

IO = 1.6mA (Notes 10, 17)

●

0.4

IOZ

Hi-Z Output Leakage (SDO)

●

–10

µA

POWER REQUIREMENTS 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

VCC

Supply Voltage

●

2.7

5.5

ICC

Supply Current

Conversion Current (Note 12)

Temperature Measurement (Note 12)

Sleep Mode (Note 12)

●

160

200

275

300

µA

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