ADC PWR-AVIS Bedienungsanleitung PDF herunterladen (Seite 2)

LTC2245

2245fa

ABSOLUTE AXI U RATI GS

PACKAGE/ORDER I FOR ATIO

UUW

= V

(Notes 1, 2)

Supply Voltage (V

) ................................................. 4V

Digital Output Ground Voltage (OGND) ....... –0.3V to 1V

Analog Input Voltage (Note 3) ..... –0.3V to (V

+ 0.3V)

Digital Input Voltage .................... –0.3V to (V

+ 0.3V)

Digital Output Voltage ................–0.3V to (OV

+ 0.3V)

Power Dissipation............................................ 1500mW

Operating Temperature Range

LTC2245C ............................................... 0°C to 70°C

LTC2245I.............................................–40°C to 85°C

Storage Temperature Range ..................–65°C to 125°C

The ● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at T

= 25°C. (Note 4)

PARAMETER CONDITIONS MIN TYP MAX UNITS

Resolution ● 14 Bits

(No Missing Codes)

Integral Differential Analog Input ● –4 ±14 LSB

Linearity Error (Note 5)

Differential Differential Analog Input ● –1 ±0.5 1 LSB

Linearity Error

Offset Error (Note 6) ● –12 ±212 mV

Gain Error External Reference ● –2.5 ±0.5 2.5 %FS

Offset Drift ±10 µV/°C

Full-Scale Drift Internal Reference ±30 ppm/°C

External Reference ±5 ppm/°C

Transition Noise SENSE = 1V 1 LSB

RMS

CO VERTER CHARACTERISTICS

JMAX

= 125°C, θ

= 34°C/W

EXPOSED PAD IS GND (PIN 33)

MUST BE SOLDERED TO PCB

32 31 30 29 28 27 26 25

9 10 11 12

TOP VIEW

UH PACKAGE

32-LEAD (5mm × 5mm) PLASTIC QFN

13 14 15 16

–

REFH

REFL

GND

D10

OGND

SENSE

MODE

D13

D12

D11

CLK

SHDN

ORDER PART NUMBER

Consult LTC Marketing for parts specified with wider operating temperature ranges.

*The temperature grade is identified by a label on the shipping container.

LTC2245CUH

LTC2245IUH

Order Options Tape and Reel: Add #TR

Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF

Lead Free Part Marking: http://www.linear.com/leadfree/

QFN PART MARKING

2245*

1 2 3 4 5 6 7 ... 19 20

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