ADS1259-Q1
Automotive, 24-bit, 14.4kSPS, 1-ch delta-sigma ADC w/ low-drift Vref for high-dynamic range systems
ADS1259-Q1
- 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
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 device can use the integrated oscillator, an external crystal, or an external clock as the ADC clock source.
A fast-responding input overrange detector flags the conversion data if an input overrange event occurs. To augment data integrity in noisy automotive environments the ADS1259-Q1 offers an optional checksum byte and a redundant conversion data-read capability.
The ADS1259-Q1 consumes 13 mW during operation and less than 25 µW when powered down. TI offers the ADS1259-Q1 device in a TSSOP-20 package with full specification from –40°C to 125°C.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | Automotive, 14.4-kSPS, 24-Bit ADC with Integrated Low-Drift Reference datasheet | 19 Mar 2014 | |
Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | 18 Mar 2024 | |
Application note | A Basic Guide to Bridge Measurements (Rev. A) | PDF | HTML | 13 Mar 2024 | |
Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 29 Mar 2023 | |
Application note | Communication Methods for Data Integrity Using Delta-Sigma Data Converters (Rev. A) | PDF | HTML | 23 Aug 2021 | |
E-book | Fundamentals of Precision ADC Noise Analysis | 19 Jun 2020 | ||
E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 19 Mar 2015 |
Design & development
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ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
Supported products & hardware
Products
Precision op amps (Vos<1mV)
General-purpose op amps
Audio op amps
Transimpedance amplifiers
High-speed op amps (GBW ≥ 50 MHz)
Power op amps
Video amplifiers
Line drivers
Transconductance amplifiers & laser drivers
Fully differential amplifiers
Precision ADCs
Biosensing AFEs
High-speed ADCs (≥10 MSPS)
Receivers
Touchscreen controllers
Difference amplifiers
Instrumentation amplifiers
Audio line receivers
Analog current-sense amplifiers
Digital power monitors
Analog current-sense amplifiers with integrated shunt resistor
Digital power monitors with integrated shunt resistor
Die & wafer services
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
TIDA-03050 — Automotive, mA-to-kA Range, Current Shunt Sensor Reference Design
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
TSSOP (PW) | 20 | Ultra Librarian |
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