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ADS1204

Texas Instruments
Part Number ADS1204
Manufacturer Texas Instruments
Description Delta-Sigma Modulator
Published Jul 8, 2020
Detailed Description Product Folder Order Now Technical Documents Tools & Software Support & Community ADS1204 SBAS301D – OCTOBER 2003 –...
Datasheet PDF File ADS1204 PDF File

ADS1204
ADS1204

Overview
Product Folder Order Now Technical Documents Tools & Software Support & Community ADS1204 SBAS301D – OCTOBER 2003 – REVISED FEBRUARY 2020 ADS1204 Four 1-Bit, 10-MHz, 2nd-Order, Delta-Sigma Modulators 1 Features •1 16-bit resolution • 14-bit linearity • Resolution, speed trade-off: 10-bit effective resolution with 10-µs signal delay (12-bit with 19 µs) • ±2.
5-V input range at 2.
5 V • Internal reference voltage: 2% • Gain error: 0.
5% • Four independent delta-sigma modulators • Four input reference buffers • Onboard 20-MHz oscillator • Selectable internal or external clock • Operating temperature range: –40°C to +105°C • Package: VQFN-32 (5 mm × 5 mm) 2 Applications • Motor controls • Current measurement • Industrial process controls • Smart transmitters • Weight scales • Pressure transducers • Portable instruments • Instrumentation 3 Description The ADS1204 is a four-channel, high-performance device, with four delta-sigma (ΔΣ) modulators with 100-dB dynamic range, operating from a single 5-V supply.
The differential inputs are ideal for direct connection to transducers in an industrial environment.
With the appropriate digital filter and modulator rate, the device can be used to achieve 16-bit analog-to-digital (A/D) conversion with no missing code.
Effective resolution of 12 bits can be obtained with a digital filter data rate of 160 kHz at a modulator rate of 10 MHz.
The ADS1204 is designed for use in medium- to high-resolution measurement applications including current measurements, smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.
It is available in a VQFN-32 (5×5) package.
Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) ADS1204 VQFN (32) 5.
00 mm × 5.
00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet.
Functional Block Diagram AVDD BVDD CH A+ + CH A- ± REFIN A 2nd-Order ¨™ Modulator Output Interface Circuit OUT A OUT B OUT C CLKO...


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