Rainbow-electronics MAX109 Manual do Utilizador descarregar pdf (Página 4)

MAX109

8-Bit, 2.2Gsps ADC with Track/Hold Amplifier

and 1:4 Demultiplexed LVDS Outputs

4 _______________________________________________________________________________________

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

REFERENCE INPUT AND OUTPUT (REFIN, REFOUT)

Reference Output Voltage REFOUT 2.460 2.500 2.525 V

Reference Output Load

Regulation

∆REFOUT 0 < I

SOURCE

< 2.5mA < 7.5 mV

Reference Input Voltage REFIN

2.500

± 0.25

Reference Input Resistance R

REFIN

45 kΩ

CLOCK INPUTS (CLKP, CLKN)

Clock Input Amplitude Peak-to-peak differential (Figure 13b)

200 to

2000

Clock Input Common-Mode

Range

Signal and offset referenced to CLKCOM -2 to +2 V

Clock Input Resistance R

CLK

CLKP and CLKN to CLKCOM 45 50 55 Ω

Input Resistance Temperature

Coefficient

150 ppm/°C

CMOS CONTROL INPUTS (DDR, QDR, PRN, DELGATE0, DELGATE1)

High-Level Input Voltage V

Threshold voltage = 1.2V 1.4 3.3 V

Low-Level Input Voltage V

Threshold voltage = 1.2V 0.8 V

High-Level Input Current I

= 3.3V 50 µA

Low-Level Input Current I

= 0V -50 µA

LVDS INPUTS (RSTINP, RSTINN)

Differential Input High Voltage 0.2 V

Differential Input Low Voltage -0.2 V

Minimum Common-Mode Input

Voltage

Maximum Common-Mode Input

Voltage

C C

O -

0.15

TEMPERATURE MEASUREMENT OUTPUT (TEMPMON)

Temperature Measurement

Accuracy

T (°C) = [(V

TEMPMON

- V

GNDI

) x 1303.5] -

371

±7 °C

Output Resistance Measured between TEMPMON and GNDI 0.725 kΩ

LVDS OUTPUTS (PortA, PortB, PortC, PortD, DORP, DORN, DCOP, DCON, RSTOUTP, RSTOUTN) (Note 9)

Differential Output Voltage V

LOAD

= 100Ω 250 400 mV

Output Offset Voltage V

LOAD

= 100Ω 1.10 1.28 V

DC ELECTRICAL CHARACTERISTICS (continued)

A = V

I = V

D = 5V, V

O = 3.3V, V

= -5V, GNDA = GNDI = GNDO = GNDD = GNDR = 0V, VOSADJ = SAMPADJ =

open, digital output pins differential R

= 100Ω. Specifications ≥ +25°C guaranteed by production test, < +25°C guaranteed by

design and characterization. Typical values are at T

= +25°C, unless otherwise noted.)

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