MAX155BEPI(2012) 데이터 시트보기 (PDF) - Maxim Integrated

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MAX155BEPI
(Rev.:2012)

8-/4-Channel ADCs with Simultaneous T/Hs and Reference

Maxim Integrated 

MAX155/MAX156

8-/4-Channel ADCs with Simultaneous

T/Hs and Reference

TIMING CHARACTERISTICS (Note 3, Figures 1-7) (continued)

(VDD = +5V, VREFIN = +2.5V. External Reference, VAGND = VDGND = 0V, VSS = 0V or -5V, TA = TMIN to TMAX, unless otherwise noted.)

PARAMETER

BUSY High to WR Delay (to update

configuration register) (Notes 2, 3)

SYMBOL

tBWD

CONDITIONS

MIN

TYP MAX UNITS

50

ns

CLK to WR Delay (Acquisition Time)

(Note 2)

BUSY High to RD Delay (Notes 2, 3)

Address-Setup Time

Address-Hold Time

RD to Data Valid (Note 4)

RD to Data Three-State Output (Note 5)

CLK to BUSY Delay (Note 2)

CLK Frequency

tACQ

tBRD

tAS

tAH

tDV

tTR

tCB

MAX15_C/E

MAX15_C/E

800

ns

50

ns

120

ns

0

ns

100

ns

80

ns

100

300

ns

0.5

5.0

MHz

Note 1: VDD = +5V, VREFIN = +2.5V, VSS = 0V. Performance at ±5% power-supply tolerance is guaranteed by Power-Supply

Rejection test.

Note 2: Guaranteed by design, not production tested.

Note 3: All input control signals are specified with tr = tf = 20ns (10% to 90% of +5V) and timed from a +1.6V voltage level. Output

signals are timed from VOH and VOL.

Note 4: tDV is the time required for an output to cross +0.8V or +2.4V measured with load circuit of Figure 1.

Note 5: tTR is the time required for the data lines to change 0.5V, measured with load circuits of Figure 2.

+5V

3kΩ

DN

3kΩ

100pF

DGND

HIGH-Z TO VOH

DN

100pF

DGND

HIGH-Z TO VOL

Figure 1. Load Circuits for Data-Access Timing

DN

10pF

3kΩ

VOH TO HIGH-Z

+5V

3kΩ

DN

10pF

VOL TO HIGH-Z

Figure 2. Load Circuits for Three-State Output Timing

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