CS551 Просмотр технического описания (PDF) - Cirrus Logic

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CS551

16/20-bit bridge transducer A/D conveter

Cirrus Logic 

DYNAMIC CHARACTERISTICS

Parameter

AIN and VREF Input Sampling Frequency

Modulator Sampling Frequency

Output Update Rate

Filter Corner Frequency

Settling Time to ±0.0007% (FS Step)

CS5516, CS5520

Symbol

fis

fs

fout

f-3dB

ts

Ratio

fclk/128

fclk/256

fclk/81,920

fclk/341,334

6/fout

Units

Hz

Hz

Sps

Hz

s

DIGITAL CHARACTERISTICS (TA = TMIN to TMAX; VA+, VD+ = 5V ± 5%; VA-, VD- = -5V ± 5%;

DGND = 0) All measurements below are performed under static conditions.

Parameter

Symbol Min

Typ

Max Units

High-Level Input Voltage:

Low-Level Input Voltage

High-Level Output Voltage

Low-Level Output Voltage

Input Leakage Current

3-State Leakage Current

XIN VIH

4.5

-

All Pins Except XIN VIH

2.0

-

XIN VIL

-

-

All Pins Except XIN VIL

-

-

(Note 11) VOH (VD+)-1.0 -

lout = 1.6mA VOL

-

-

lin

-

1

lOZ

-

-

-

V

-

V

0.5

V

0.8

V

-

V

0.4

V

10

µA

±10

µA

Digital Output Pin Capacitance

Cout

-

9

-

pF

Notes: 11. Iout = -100 µA. This guarantees the ability to drive one TTL load. (VOH = 2.4V @ Iout = -40 µA).

66

DS74F21

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