RHF1401 datasheet(9/29 Pages) STMICROELECTRONICS

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RHF1401

Electrical characteristics (unchanged after 300kRad)

9/29

Electrical characteristics (unchanged after 300kRad)

Test conditions are the following (unless otherwise specified):

●

AVCC = DVCC = VCCB = 2.5 V

●

Fs= 20 Msps

●

Fin= 2 MHz

●

Vin@ -1 dBSF

●

VREFM = 0 V

●

Tamb= 25° C

Table 5.

Analog inputs

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

VIN-VINB Full scale reference voltage VREFP= 1 V

Vpp

Cin

Input capacitance

Zin

Input impedance

Fs= 20 Msps

3.3

kOhms

ERB

Effective resolution

bandwidth(1)

See Section 8: Definitions of specified parameters on page 24 for more information.

MHz

Table 6.

Internal references

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

Rout

Output resistance of

internal ref

REFMODE=’0’

internal reference on

Ohm

REFMODE=’1’

internal reference off

7.5

kOhm

VREFP

Top internal reference

voltage

REFMODE=’0’

0.84

VREFM Bottom internal ref. voltage REFMODE=’0’

VINCM

Input common mode

voltage

REFMODE=’0’

0.44

Table 7.

External references

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

VREFP

Forced top reference

voltage

REFMODE=’1’

0.8

1.4

VREFM Forced bottom ref. voltage

REFMODE=’1’

0.2

VINCM

Forced common mode

voltage

REFMODE=’1’

0.4

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