ADC 2 Spezifikationen PDF herunterladen (Seite 5)

R =200W

SER

R =50W

CHXX+

R =200W

SER

R =50W

CHXX-

C =5pF

PAR

C =5pF

PAR

C =2pF

ADS7865

www.ti.com

SBAS441C –OCTOBER 2008–REVISED APRIL 2012

ELECTRICAL CHARACTERISTICS (continued)

At T

= –40°C to +125°C; over entire power-supply voltage range, V

REF

= 2.5V (internal), f

CLK

= 32MHz, and f

DATA

= 2MSPS,

unless otherwise noted.

ADS7865

PARAMETER TEST CONDITIONS MIN TYP

(1)

MAX UNIT

POWER SUPPLY

Analog supply voltage AV

to AGND 2.7 5.0 5.5 V

Buffer I/O supply current BV

to BGND 2.7 3.0 5.5 V

= 2.7V 4.1 6.0 mA

= 5V 5.6 7.5 mA

= 2.7V, NAP power-down 0.9 1.6 mA

Analog supply current

= 5V, NAP power-down 1.1 1.8 mA

= 2.7V, deep power-down 0.001 mA

= 5V, deep power-down 0.001 mA

= 2.7V, C

LOAD

= 10pF 0.6 1.7 mA

Buffer I/O supply current

= 3.3V, C

LOAD

= 10pF 0.8 1.9 mA

= 2.7V, BV

= 2.7V 12.7 21 mA

Power dissipation

= 5.0V, BV

= 3.0V 30.6 44 mW

EQUIVALENT INPUT CIRCUIT

1 2 3 4 5 6 7 8 9 10 ... 32 33

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