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ADS6142-HT Datasheet(PDF) 21 Page - Texas Instruments |
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ADS6142-HT Datasheet(HTML) 21 Page - Texas Instruments |
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21 / 49 page ![]() ADS6142-HT www.ti.com SLWS234 – DECEMBER 2011 Table 10. A4 –A0 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 (hex) 0A <DF> 0 0 <TEST PATTERNS> 0 0 0 0 0 2s Complement or straight binary D7-D5 Test patterns 000 Normal operation - <D13:D0> = ADC output 001 All zeros - <D13:D0> = 0x0000 010 All ones - <D13:D0> = 0x3FFF 011 Toggle pattern - <D13:D0> toggles between 0x2AAA and 0x1555 100 Digital ramp - <D13:D0> increments from 0x0000 to 0x3FFF by one code every cycle 101 Custom pattern - <D13:D0> = contents of CUSTOM PATTERN registers 110 Unused 111 Unused D10 <DATA FORMAT> 0 2s Complement 1 Straight binary Table 11. A4 –A0 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 (hex) 0B <CUSTOM LOW> 0 0 Lower 9 bits of custom pattern Table 12. A4 –A0 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 (hex) 0C <FINE GAIN> 0 0 0 <CUSTOM HIGH> Fine gain 0 to 6dB Upper 5 bits of custom pattern Reg 0B <CUSTOM LOW> - Specifies lower 9 bits of custom pattern D10-D2 Reg 0C <CUSTOM HIGH> - Specifies upper 5 bits of custom pattern D4-D0 D10-D8 <FINE GAIN> Gain programming 000 0 dB Gain 001 1 dB Gain 010 2 dB Gain 011 3 dB Gain 100 4 dB Gain 101 5 dB Gain 110 6 dB Gain 111 Unused Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback 21 Product Folder Link(s) :ADS6142-HT |
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