LTC2668 datasheet(3/40 Pages) LINER

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LTC2348-16

234816fa

For more information www.linear.com/LTC2348-16

elecTrical characTerisTics

converTer characTerisTics

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN+

Absolute Input Range

(IN0+ to IN7+)

(Note 7)

VEE

VCC – 4

VIN–

Absolute Input Range

(IN0– to IN7–)

(Note 7)

VEE

VCC – 4

VIN+ – VIN– Input Differential Voltage

Range

SoftSpan 7: ±2.5 • VREFBUF Range (Note 7)

SoftSpan 6: ±2.5 • VREFBUF/1.024 Range (Note 7)

SoftSpan 5: 0V to 2.5 • VREFBUF Range (Note 7)

SoftSpan 4: 0V to 2.5 • VREFBUF/1.024 Range (Note 7)

SoftSpan 3: ±1.25 • VREFBUF Range (Note 7)

SoftSpan 2: ±1.25 • VREFBUF/1.024 Range (Note 7)

SoftSpan 1: 0V to 1.25 • VREFBUF Range (Note 7)

–2.5 • VREFBUF

–2.5 • VREFBUF/1.024

–1.25 • VREFBUF

–1.25•VREFBUF/1.024

2.5 • VREFBUF

2.5 • VREFBUF/1.024

2.5 • VREFBUF

2.5 • VREFBUF/1.024

1.25 • VREFBUF

1.25 • VREFBUF/1.024

1.25 • VREFBUF

VCM

Input Common Mode Voltage

Range

(Note 7)

VEE

VCC – 4

VIN+ – VIN– Input Differential Overdrive

Tolerance

(Note 8)

−(VCC − VEE)

(VCC − VEE)

IIN

Analog Input Leakage Current

–1

µA

CIN

Analog Input Capacitance

Sample Mode

Hold Mode

CMRR

Input Common Mode

Rejection Ratio

VIN+ = VIN− = 18VP-P 200Hz Sine

100

118

VIHCNV

CNV High Level Input Voltage

1.3

VILCNV

CNV Low Level Input Voltage

0.5

IINCNV

CNV Input Current

VIN = 0V to VDD

–10

μA

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Resolution

Bits

No Missing Codes

Bits

Transition Noise

SoftSpans 7 and 6: ±10.24V and ±10V Ranges

SoftSpans 5 and 4: 0V to 10.24V and 0V to 10V Ranges

SoftSpans 3 and 2: ±5.12V and ±5V Ranges

SoftSpan 1: 0V to 5.12V Range

0.33

0.65

0.5

1.0

LSBRMS

INL

Integral Linearity Error

(Note 10)

–1

±0.3

LSB

DNL

Differential Linearity Error (Note 11)

−0.9

±0.2

0.9

LSB

ZSE

Zero-Scale Error

(Note 12)

−550

±160

550

μV

Zero-Scale Error Drift

±2

μV/°C

FSE

Full-Scale Error

(Note 12)

−0.1

±0.025

0.1

%FS

Full-Scale Error Drift

±2.5

ppm/°C

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 6)

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 9)

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