RHF1401_12 datasheet(21/42 Pages) STMICROELECTRONICS

Numer części	RHF1401

Szczegółowy opis	Rad-hard 14-bit 30 Msps A/D converter

PDF	42 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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21 / 42 page

RHF1401

Electrical characteristics

Doc ID 13317 Rev 8

21/42

2.5

Results for single ended input

Setup

●

AVCC = DVCC = VCCBI = VCCBE = 2.5 V

●

VREFP = 1 V

●

VREFM = 0 V

●

INCM = Vin/2

●

REFMODE = 1 (internal references are disabled)

●

Vin = 1 Vpp

●

Tamb = 25 °C

●

A square clock is applied

Unless other test conditions are specified.

In the following graphs, the input signal is seldom full scale.

Figure 35.

Single-ended input configuration

Cf is a filter capacitor to cut the HF noise. Its value is 10 nF for input frequencies equal to or

below 20 kHz. The value of the capacitor is divided by two when the input frequency is

multiplied by 2.

AM04566

Single ended

input signal

VIN

VINB

INCM

REFM

REFP

Ground

External 1V

External

2.5 V

VCCBE

VCCBI

AVCC

DVCC

VOCM

GENERATOR

VOCM

GENERATOR

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