STR720 datasheet(391/401 Pages) STMICROELECTRONICS

Numer części	STR720

Szczegółowy opis	ARM720T 16/32-BIT MCU WITH 16K RAM, USB, CAN, 3 TIMERS, ADC, 6 COMMUNICATIONS INTERFACES

PDF	401 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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391 / 401 page

STR720 - ELECTRICAL CHARACTERISTICS

391/401

Where RIN can be defined by the following formula.

All parameters required to describe ADC input pads are reported in the following table.

VDD(all) = 1.80 V ± 10%, VDD3(all) = 3.30 V ± 10%, TA = -40 / +85 °C unless otherwise specified.

Data based on design guidelines, not tested in production.

Data based on design characterization performed on sample devices, not tested in production.

Data based on design guidelines and validation, not tested in production.

Table 106. ADC Input Characteristics

Symbol

Parameter

Test Conditions(1)

Value

Unit

Min.

Typ

Max

CIN

Analog input capacitance(2)

See Figure 79.

CIN = CP1+CP2+CS

FMOD

Modulator frequency(3)

(oversampling clock)

MHz

Equivalent analog input

resistor constant(4)

See Figure 80.

In single channel mode value

must be divided by 4.

1728

2160

2592

Ω⋅MHz

RIN

Equivalent analog

input resistance(4)

See Figure 80.

FMOD = 4 MHz,

round-robin mode.

540

Ω

VCM

Common mode voltage(2)

1.19

1.25

1.31

fAIN

Analog input bandwidth(2)

(FMOD/4096)

FMOD = 4 MHz

976

Conversion time

FMOD = 4 MHz

128

MOD

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⋅

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