REF5045 datasheet(14/62 Pages) TI2

Part #	REF5045

Description	ADS8881x 18-Bit, 1-MSPS, Serial Interface, microPower, Miniature, True-Differential Input, SAR Analog-to-Digital Converter

PDF	62 Pages

Scroll/Zoom	100%

Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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14 / 62 page

±200

±180

±160

±140

±120

±100

±80

±60

±40

±20

100

200

300

400

500

Input Frequency (kHz)

C011

AVDD = 3 V

REF = 2.5 V

A = 25ƒC

IN = 1 kHz

SNR = 95.4 dB

THD =

±119 dB

±200

±180

±160

±140

±120

±100

±80

±60

±40

±20

100

200

300

400

500

Input Frequency (kHz)

C012

AVDD = 3 V

REF = 5 V

A = 25ƒC

IN = 1 kHz

SNR = 100 dB

THD =

±115 dB

ADC Output Code

C00

AVDD = 3 V

REF = 2.5 V

A = 25

ADC Output Code

C01

AVDD = 3 V

REF = 5 V

A = 25

-3

-2

-1

2.5

3.5

4.5

Reference Voltage (V)

C00

AVDD = 3 V

A = 25

-1

-0.5

0.5

1.5

2.5

3.5

4.5

Reference Voltage (V)

C00

AVDD = 3 V

A = 25

ADS8881

SBAS547D – MAY 2013 – REVISED AUGUST 2015

www.ti.com

Product Folder Links: ADS8881

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Typical Characteristics (continued)

At TA = 25°C, AVDD = 3 V, DVDD = 3 V, VREF = 5 V, and fSAMPLE = 1 MSPS, unless otherwise noted.

Figure 10. INL vs Reference Voltage

Figure 11. DNL vs Reference Voltage

Figure 12. DC Input Histogram (VREF = 2.5 V)

Figure 13. DC Input Histogram (VREF = 5 V)

Figure 14. Typical FFT (VREF = 2.5 V)

Figure 15. Typical FFT (VREF = 5 V)

REF5045 Datasheet(PDF) 14 Page - Texas Instruments

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