EVAL1204/BA(2006) 데이터 시트보기 (PDF) - STMicroelectronics

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EVAL1204/BA
(Rev.:2006)

Dual channel 12-bit 20Msps 120mW A/D converter

STMicroelectronics 

Electrical characteristics

7

Electrical characteristics

TSA1204

Electrical characteristics are measured at AVCC = DVCC = VCCB = 2.5 V, FS= 20 Msps,

Fin=2 MHz, Vin@ -1 dBFS, VREFP=1.0 V, VREFM=0 V, and Tamb = 25° C (unless otherwise

specified).

Table 6. Analog inputs

Symbol

Parameter

VIN-VINB

Full scale reference

voltage

Cin Input capacitance

Req Equivalent input resistor

BW Analog input bandwidth

ERB

Effective resolution

bandwidth

Test conditions

Differential inputs mandatory

Vin@full scale, FS=20 Msps

Min Typ Max Unit

1.1 2.0 2.8 Vpp

7.0

3

1000

pF

KΩ

MHz

70

MHz

Table 7. Digital inputs and outputs

Symbol

Parameter

Test conditions Min Typ Max Unit

Clock and select inputs

VIL Logic "0" voltage

VIH Logic "1" voltage

OEB input

VIL Logic "0" voltage

VIH Logic "1" voltage

Digital outputs

VOL Logic "0" voltage

VOH Logic "1" voltage

IOZ

High impedance leakage

current

CL Output load capacitance

Table 8. Reference voltage

Symbol

Parameter

VREFPI

VREFPQ

VINCMI

VINCMQ

Top internal reference

voltage

Input common mode

voltage

0

0.8

V

2.0

2.5

V

0

0.25 x

VCCBE

V

0.75 x

VCCBE

VCCBE

V

IOL=10 µA

IOH=10 µA

OEB set to VIH

0

0.1 x

VCCBE

V

0.9 x

VCCBE

VCCBE

V

-1.7

1.7

µA

15

pF

Test conditions

Min Typ Max Unit

0.807 0.89 0.963 V

0.40 0.46 0.52 V

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