LTC2301CDEXPBF datasheet(21/24 Pages) LINER

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LTC2301/LTC2305

23015f

separated as much as possible. Care should be taken not

to run any digital signals alongside an analog signal. All

analog inputs should be shielded by GND. VREF, REFCOMP

and VDD should be bypassed to the ground plane as close

to the pin as possible. Maintaining a low impedance path

APPLICATIONS INFORMATION

Figure 15a. Top Silkscreen

for the common return of these bypass capacitors is es-

sential to the low noise operation of the ADC. These traces

should be as wide as possible. See Figure 15a–15e for a

suggested layout.

Figure 13. Bipolar Transfer Characteristics (2’s Complement)

Figure 14. Unipolar Transfer Characteristics (Straight Binary)

INPUT VOLTAGE (V)

–1

LSB

23015 F13

011...111

011...110

000...001

000...000

100...000

100...001

111...110

LSB

BIPOLAR

ZERO

111...111

FS/2 – 1LSB

–FS/2

FS = 4.096V

1LSB = FS/2n

1LSB = 1mV

INPUT VOLTAGE (V)

23015 F14

111...111

111...110

100...001

100...000

000...000

000...001

011...110

011...111

FS – 1LSB

UNIPOLAR

ZERO

FS = 4.096V

1LSB = FS/2n

1LSB = 1mV

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