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ADS1204IRHBRG4 Datasheet(PDF) 6 Page - Texas Instruments |
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ADS1204IRHBRG4 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 29 page PIN ASSIGNMENTS CHA+ CHA- CHB+ CHB- CHC- CHC+ CHD- CHD+ OUTA OUTB OUTC OUTD CLKOUT BGND BV DD CLKIN 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 ADS1204 ADS1204 SBAS301C – OCTOBER 2003 – REVISED FEBRUARY 2009........................................................................................................................................... www.ti.com RHB PACKAGE(1) QFN-32 (TOP VIEW) (1) The thermal pad is internally connected to the substrate. This pad can be connected to the analog ground or left floating. Keep the thermal pad separate from the digital ground, if possible. TERMINAL FUNCTIONS TERMINAL NAME NO. I/O(1) DESCRIPTION CH A+ 1 AI Analog input of channel A: noninverting input CH A– 2 AI Analog input of channel A: inverting input CH B+ 3 AI Analog input of channel B: noninverting input CH B– 4 AI Analog input of channel B: inverting input CH C– 5 AI Analog input of channel C: inverting input CH C+ 6 AI Analog input of channel C: noninverting input CH D– 7 AI Analog input of channel D: inverting input CH D+ 8 AI Analog input of channel D: noninverting input REFIN D 9 AI Reference voltage input of channel D: pin for external reference voltage REFIN C 10 AI Reference voltage input of channel C: pin for external reference voltage AGND 11 — Analog ground AVDD 12 P Analog power supply; nominal 5V NC 13 — No connection; this pin is left unconnected AVDD 14 P Analog power supply; nominal 5V AGND 15 — Analog ground CLKSEL 16 I Clock select between internal clock (CLKSEL = 1) or external clock (CLKSEL = 0) CLKIN 17 I External clock input BVDD 18 P Digital interface power supply; from 2.7V to 5.5V BGND 19 — Interface ground CLKOUT 20 O System clock output (1) AI = Analog Input; AO = Analog Output; I = Input; O = Output; P = Power Supply. 6 Submit Documentation Feedback Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s): ADS1204 |
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