LTC1450CG datasheet(2/16 Pages) LINER

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LTC1450/LTC1450L

ABSOLUTE MAXIMUM RATINGS

PACKAGE/ORDER INFORMATION

VCC to GND .............................................. –0.5V to 7.5V

Logic Inputs to GND ................................ – 0.5V to 7.5V

VOUT .............................................. –0.5V to VCC + 0.5V

REFOUT, REFLO, REFHI, X1/X2 ..... – 0.5V to VCC + 0.5V

Maximum Junction Temperature .......................... 125

°C

Operating Temperature Range

Commercial ........................................... 0

°C to 70°C

Industrial ......................................... – 40

°C to 85°C

Storage Temperature Range ................ – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec)................. 300

°C

ORDER PART

NUMBER

Consult factory for Military grade parts.

TJMAX = 125°C, θJA = 95°C/ W (G)

TJMAX = 125°C, θJA = 58°C/ W (N)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

DAC

Resolution

Bits

DNL

Differential Nonlinearity

Guaranteed Monotonic (Note 1)

±0.5

LSB

INL

Integral Nonlinearity

TA = 25°C

±3.5

LSB

(Note 1)

±4.0

LSB

VOS

Offset Error

TA = 25°C

±12

±18

VOS TC

Offset Error Temperature Coefficient

±15

µV/°C

VFS

Full-Scale Voltage

Using Internal Reference, LTC1450, TA = 25°C

4.065

4.095

4.125

Using Internal Reference, LTC1450

4.045

4.095

4.145

External 2.048V Reference, LTC1450

4.075

4.095

4.115

Using Internal Reference, LTC1450L, TA = 25°C

2.470

2.500

2.530

Using Internal Reference, LTC1450L

2.460

2.500

2.540

External 1.22V Reference, LTC1450L

2.480

2.500

2.520

VFS TC

Full-Scale Voltage Temperature Coefficient

Using Internal Reference, LTC1450

±0.10

LSB/

°C

Using External Reference, LTC1450/LTC1450L

±0.02

LSB/

°C

Using Internal Reference, LTC1450L

±0.10

LSB/

°C

Reference Output (REFOUT)

Reference Output Voltage

LTC1450L

1.195

1.220

1.245

LTC1450

2.008

2.048

2.088

Reference Output Temperature Coefficient

±0.08

LSB/

°C

Reference Line Regulation

0.7

±2LSB/V

Reference Load Regulation

≤ IOUT ≤ 100µA,

LTC1450L

0.6

± 3.0

LSB

LTC1450

0.2

±1.5

LSB

Short-Circuit Current

REFOUT Shorted to GND

TOP VIEW

G PACKAGE

24-LEAD PLASTIC SSOP

N PACKAGE

24-LEAD PLASTIC PDIP

CSLSB

CSMSB

(LSB) D0

LDAC

CLR

X1/X2

VOUT

VCC

REFOUT

REFHI

REFLO

GND

D11(MSB)

D10

LTC1450CG

LTC1450CN

LTC1450IG

LTC1450IN

LTC1450LCG

LTC1450LCN

LTC1450LIG

LTC1450LIN

VCC = 4.5V to 5.5V (LTC1450), 2.7V to 5.5V (LTC1450L), VOUT unloaded,

REFOUT = REFHI, REFLO = GND = X1/X2, TA = TMIN to TMAX, unless otherwise noted.

ELECTRICAL CHARACTERISTICS

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