AS1524-BTDT Ver la hoja de datos (PDF) - austriamicrosystems AG

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Fabricante

AS1524-BTDT

150ksps, 12-Bit, 1-Channel Pseudo/True-Differential and 2-Channel Single-Ended ADCs

austriamicrosystems AG 

AS1524/AS1525

Datasheet - Electrical Characteristics

Timing Characteristics

VDD = +2.7 to +5.25V, VREF = +2.5V, 4.7µF Capacitor at REF; fSCLK = 8MHz (50% Duty Cycle); AIN- = GND (AS1524)

TAMB = TMIN to TMAX (unless otherwise specified). Typical Values at TAMB = +25ºC.

Table 5. Timing Characteristics

Parameter

Symbol

Conditions

Min Typ Max Units

SCLK Pulse Width High

tCH

38

ns

SCLK Pulse Width Low

tCL

38

ns

SCLK Falling-to-DOUT

Transition

CLOAD = 30pF (see Figure 3, Figure 4,

tDOT

Figure 19 on page 12, Figure 20 on

page 12)

28

60

ns

SCLK Rising-to-DOUT1

Disable

CLOAD = 30pF (see Figure 3, Figure 4,

tDOD

Figure 19 on page 12, Figure 20 on 100 200 500

ns

page 12)

CNVST Falling-to-MSB Vlid

tCONV

CLOAD = 30pF (see Figure 3, Figure 4,

Figure 19 on page 12, Figure 20 on

page 12)

3.3

3.7

µs

CNVST Pulse Width

tCSW

30

ns

1. Guaranteed by Design and Characterisation.

Figure 3. DOUT Enable/Disable Time Load Circuits

DOUT

6kΩ

CLOAD

GND

GND

High-impedance to VOH, VOL to VOH, and VOH to High-impedance

DOUT

VDD

6kΩ

CLOAD

GND

Figure 4. Detailed Serial Interface Timing Diagram

CNVST

SCLK

DOUT

tCH

tCL

tCSW

tDOT

tDOD

High Z

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Revision 1.02

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