ADS1000-Q1 Automotive, 12-Bit, 128SPS, 1-Ch Delta-Sigma ADC w/ PGA, Oscillator & I2C | TI.com

ADS1000-Q1 (ACTIVE)

Automotive, 12-Bit, 128SPS, 1-Ch Delta-Sigma ADC w/ PGA, Oscillator & I2C

 

Description

The ADS1000-Q1 is an I2C-compatible serial interface analog-to-digital (A/D) converter with differential inputs and 12 bits of resolution in a tiny SOT23-6 package. Conversions are performed ratiometrically, using the power supply as the reference voltage. The ADS1000-Q1 operates from a single power supply ranging from 2.7 V to 5.5 V.

The ADS1000-Q1 performs conversions at a rate of 128 samples per second (SPS). The onboard programmable gain amplifier (PGA), which offers gains of up to 8, allows smaller signals to be measured with high resolution. In single-conversion mode, the ADS1000-Q1 automatically powers down after a conversion, greatly reducing current consumption during idle periods.

The ADS1000-Q1 is designed for applications where space and power consumption are major considerations. Typical applications include head units, battery management systems, on-board chargers, and emissions and gas sensors.

Features

  • Qualified for Automotive Applications
  • Complete 12-Bit Data Acquisition System in a Tiny
    SOT-23 Package
  • Low Current Consumption: Only 90 µA
  • Integral Nonlinearity: 1 LSB Max
  • Single-Cycle Conversion
  • Programmable Gain Amplifier
    Gain = 1, 2, 4, or 8
  • 128-SPS Data Rate
  • I2C Interface with Two Available Addresses
  • Power Supply: 2.7 V to 5.5 V
  • APPLICATIONS
    • Automotive Head Units
    • Automotive Battery Management Systems
    • Automotive On-Board Chargers
    • HEV/EV Inverters
    • NOx Sensors
    • Soot and Particulate Matter (PM) Sensors
    • Oxygen (O2, Lambda, A/F) Sensors
    • Ammonia (NH3) Sensors
    • Other Emissions and Gas Sensors

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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
ADS1000-Q1 ADS1000 ADS1100 ADS1110 ADS1225 ADS1226
12     12     16     16     24     24    
0.128     0.128     0.128     0.128     0.1     0.1    
1     1     1     1     1     2    
I2C     I2C     I2C     I2C     SPI     SPI    
-40 to 125     -40 to 125     -40 to 85     -40 to 125     -40 to 105     -40 to 105    
SOT-23 | 6     SOT-23 | 6     SOT-23 | 6     SOT-23 | 6     VQFN | 16     VQFN | 16    
1.06 | 1ku     0.90 | 1ku     2.00 | 1ku     2.34 | 1ku     2.94 | 1ku     3.16 | 1ku    
0.21     0.21     0.27     0.72     1.6     1.6    
6SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 6)     6SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 6)     6SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 6)     6SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 6)     16VQFN: 16 mm2: 4 x 4 (VQFN | 16)     16VQFN: 16 mm2: 4 x 4 (VQFN | 16)    
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    
   
   
   
   
   
Multiplexed    
Supply     Supply     Supply     Int     Ext     Ext    
Oscillator
PGA
Small Size    
Oscillator
PGA
Small Size    
Oscillator
PGA
Small Size    
Oscillator
PGA
Small Size    
Oscillator
Temp Sensor    
Oscillator
Temp Sensor    
5.5     5.5     5.5     5.5     5.5     5.5    
0     0     0     0     0     0    
2.7     2.7     2.7     2.7     2.7     2.7    
5.5     5.5     5.5     5.5     5.5     5.5    
2.7     2.7     2.7     2.7     2.7     2.7    
5.5     5.5     5.5     5.5     5.5     5.5    
1