ADS1259-Q1

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community ADS1259-Q1 SLASE20 – MARCH 2014 ADS1259-Q1 Automotive, 14.4-kSPS, 24-Bit Analog-to-Digital Converter With Integrated Low-Drift Reference 1 Features 1 Qualified for Automotive Applications AEC-Q100 Qualified with the Following Results: – Temperature Grade 1: –40°C to 125°C – HBM ESD Classification 2 – CDM ESD Classification C4B Programmable Data Rates: 10 SPS to 14.4 kSPS Single-Cycle Settling Digital Filter High Performance: – 21.3 ENOB at 1.2 kSPS – INL: 3 ppm – Offset Drift: 0.05 μV/°C – Gain Drift: 0.5 ppm/°C Internal Reference: 2.5 V, 10 ppm/°C Drift Internal 2% Accurate Oscillator Input Signal Out-of-Range Detection Optional Checksum and Redundant Data-Read Capability to Augment Data Integrity SPI™-Compatible Interface, Mode 1 Analog Supply: 5 V or ±2.5 V Digital Supply: 2.7 V to 5 V 3 Description The ADS1259-Q1 is a precision, low-drift, 24-bit, analog-to-digital converter (ADC). The device can perform conversions at data rates up to 14.4 kSPS with high resolution and is therefore ideally suited to measure rapidly changing signals that have a wide dynamic range. An integrated low-noise, low-drift 2.5-V reference eliminates the need for an external voltage reference, thus reducing system cost and component count. The converter uses a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator that provides outstanding noise performance and linearity. The de...