ADS1259-Q1 Automotive, 24-bit, 14.4kSPS, 1-ch delta-sigma ADC w/ low-drift Vref for high-dynamic range systems | TI.com

ADS1259-Q1 (ACTIVE)

Automotive, 24-bit, 14.4kSPS, 1-ch delta-sigma ADC w/ low-drift Vref for high-dynamic range systems

 

Special note

For evaluation purposes, please see the commercial grade evaluation module ADS1259EVM-PDK

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 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.

Features

  • 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

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Parametrics Compare all products in Precision ADCs (<=10MSPS)

 
Resolution (Bits)
Sample Rate (Max) (kSPS)
Number of input channels
Interface
Operating temperature range (C)
Package Group
Approx. price (US$)
Power consumption (Typ) (mW)
Package size: mm2:W x L (PKG)
Architecture
Input type
Multi-channel configuration
Reference mode
Features
Input range (Max) (V)
Input range (Min) (V)
Analog voltage AVDD (Min) (V)
Analog voltage AVDD (Max) (V)
Digital supply (Min) (V)
Digital supply (Max) (V)
INL (Max) (+/-LSB)
Rating
ADS1259-Q1 ADS1013-Q1 ADS1014-Q1 ADS1015-Q1 ADS1018-Q1 ADS1113-Q1 ADS1114-Q1 ADS1115-Q1 ADS1118-Q1 ADS1120-Q1 ADS1148-Q1
24     12     12     12     12     16     16     16     16     16     16    
14.4     3.3     3.3     3.3     3.3     0.86     0.86     0.86     0.86     2     2    
1     1     1     4     4     1     1     4     4     4     8    
SPI     I2C     I2C     I2C     SPI     I2C     I2C     I2C     SPI     SPI     SPI    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
TSSOP | 20     VSSOP | 10     VSSOP | 10     VSSOP | 10     VSSOP | 10     VSSOP | 10     VSSOP | 10     VSSOP | 10     VSSOP | 10     TSSOP | 16     TSSOP | 28    
6.61 | 1ku     1.12 | 1ku     1.24 | 1ku     1.36 | 1ku     1.36 | 1ku     2.30 | 1ku     2.54 | 1ku     2.71 | 1ku     2.71 | 1ku     3.72 | 1ku     4.66 | 1ku    
13     0.3     0.3     0.9     0.3     0.3     0.3     0.36     0.3     1.4     2.3    
20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)     28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)    
Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
   
   
   
Multiplexed     Multiplexed