ADS8028 datasheet(9/36 Pages) TI2

номер детали	ADS8028

подробное описание детали	12-Bit, 1-MSPS, 8-Channel, SAR ADC with Internal Reference and Internal Temperature Sensor

PDF	36 Pages

Scroll/Zoom	100%

производитель	TI2 [Texas Instruments]

домашняя страница	https://www.ti.com

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9 / 36 page

0.5

1.5

2.5

−11

−9

−7

−5

−3

−1

Current Load (mA)

G007

1.5

2.5

3.5

4.5

Reference Voltage (V)

AVDD = 5 V

DVDD = 5 V

External Reference Mode

G011

10k

100k

500k

Input Frequency (dB)

RIN = 200Ω

RIN = 100Ω

RIN = 50Ω

RIN = 33Ω

RIN = 0Ω

G012

−90

−85

−80

−75

−70

10k

100k

500k

Input Frequency (dB)

RIN = 200Ω

RIN = 100Ω

RIN = 50Ω

RIN = 33Ω

RIN = 0Ω

G013

−140

−120

−100

−80

10k

100k

10M

100M

Supply Ripple Frequency (Hz)

G014

100

110

120

100

150

200

250

300

350

400

450

500

Input Frequency (dB)

G015

ADS8028

www.ti.com

SBAS549B – MAY 2011 – REVISED MARCH 2012

TYPICAL CHARACTERISTICS (continued)

All plots at TA = +25°C, AVDD = 3.0 V, DVDD = 3.0 V,

fSAMPLE = 1 MHz, fSCLK = 20 MHz, and VREF = 2.5 V internal, unless otherwise noted.

VREF vs CURRENT LOAD

SINAD vs VREF

Figure 8.

Figure 9.

SINAD vs INPUT FREQUENCY FOR VARIOUS SOURCE

THD vs INPUT FREQUENCY FOR VARIOUS SOURCE

IMPEDANCES

Figure 10.

Figure 11.

PSRR vs POWER-SUPPLY RIPPLE FREQUENCY

CROSSTALK vs INPUT REQUENCY

Figure 12.

Figure 13.

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