AD4003BRMZ datasheet(7/34 Pages) AD

No. de pieza	AD4003BRMZ

Descripción Electrónicos	18-Bit, 2 MSPS Precision SAR Differential ADC

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AD4003

Data Sheet

Rev. 0 | Page 6 of 33

Table 3. Register Read/Write Timing

Parameter

Symbol

Min

Typ

Max

Unit

READ/WRITE OPERATION

CNV Pulse Width1

tCNVH

10

ns

SCK Period

tSCK

VIO > 2.7 V

9.8

ns

VIO > 1.7 V

12.3

ns

SCK Low Time

tSCKL

3

ns

SCK High Time

tSCKH

3

ns

READ OPERATION

CNV Low to SDO D17 MSB Valid Delay

tEN

VIO > 2.7 V

10

ns

VIO > 1.7 V

13

ns

SCK Falling Edge to Data Remains Valid

tHSDO

1.5

ns

SCK Falling Edge to Data Valid Delay

tDSDO

VIO >2.7 V

7.5

ns

VIO >1.7 V

10.5

ns

CNV Rising Edge to SDO High Impedance

tDIS

20

ns

WRITE OPERATION

SDI Valid Setup Time from SCK Rising Edge

tSSDISCK

2

ns

SDI Valid Hold Time from SCK Rising Edge

tHSDISCK

2

ns

CNV Rising Edge to SCK Edge Hold Time

tHCNVSCK

0

ns

CNV Falling Edge to SCK Active Edge Setup Time

tSCNVSCK

6

ns

1

For turbo mode, tCNVH must match the tQUIET1 minimum.

X% VIO1

Y% VIO1

VIH2

VIL2

VIH2

tDELAY

1

FOR VIO ≤ 2.7V, X = 80, AND Y = 20; FOR VIO > 2.7V, X = 70, AND Y = 30.

2MINIMUM VIH AND MAXIMUM VIL USED. SEE DIGITAL INPUTS

SPECIFICATIONS IN TABLE 1.

Figure 2. Voltage Levels for Timing

Table 4. Achievable Throughput for Different Modes of Operation

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

THROUGHPUT, CS MODE

3-Wire and 4-Wire Turbo Mode

fSCK = 100 MHz, VIO ≥ 2.7 V

2

MSPS

fSCK = 80 MHz, VIO < 2.7 V

2

MSPS

3-Wire and 4-Wire Turbo Mode and Six Status Bits

fSCK = 100 MHz, VIO ≥ 2.7 V

2

MSPS

fSCK = 80 MHz, VIO < 2.7 V

1.78

MSPS

3-Wire and 4-Wire Mode

fSCK = 100 MHz, VIO ≥ 2.7 V

1.75

MSPS

fSCK = 80 MHz, VIO < 2.7 V

1.62

MSPS

3-Wire and 4-Wire Mode and Six Status Bits

fSCK = 100 MHz, VIO ≥ 2.7 V

1.59

MSPS

fSCK = 80 MHz, VIO < 2.7 V

1.44

MSPS

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