Features

 

• Complete Front-End for Bridge Sensors
• Up to 23.5 Effective Bits
• Onboard, Low-Noise PGA
• RMS Noise:
  17nV at 10SPS (PGA = 128)
  44nV at 80SPS (PGA = 128)
• 19.2-Bit Noise-Free Resolution at Gain = 64
• Over 100dB Simultaneous 50Hz and 60Hz Rejection
• Flexible Clocking:
  Low-Drift Onboard Oscillator (±3%) Optional External Crystal
• Selectable Gains of 1, 2, 64, and 128
• Easy Ratiometric Measurements—External Voltage Reference up to 5V
• Selectable 10SPS or 80SPS Data Rates
• Two-Channel Differential Input with Built-In Temperature Sensor (ADS1232)
• Four-Channel Differential Input (ADS1234)
• Simple Serial Digital Interface
• Supply Range: 2.7V to 5.3V
• -40°C to +105°C Temperature Range
• APPLICATIONS
  • Weigh Scales
  • Strain Gauges
  • Pressure Sensors
  • Industrial Process Control

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• Parametrics      View all products in Precision ADC (<=10MSPS)
•  

Resolution (Bits)
Sample Rate (max) (SPS)
# Input Channels
Interface
Reference Mode
Architecture
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
Integrated Features

ADS1232	ADS1130	ADS1131	ADS1230	ADS1231	ADS1234
24	18	18	20	24	24
80SPS	80SPS	80SPS	80SPS	80SPS	80SPS
2	1	1	1	1	4
Serial SPI	Serial SPI	Serial	Serial SPI	Serial SPI	Serial SPI
Ext	Ext	Ext	Ext	Ext	Ext
Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma
Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
-40 to 105	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 105
24TSSOP	16TSSOP	16SOIC	16TSSOP	16SOIC	28TSSOP
3.90 | 1ku	2.50 | 1ku	2.10 | 1ku	2.95 | 1ku	2.50 | 1ku	4.05 | 1ku
PGA  Oscillator  50/60 Hz rejection	PGA  Oscillator	PGA  Oscillator	PGA  Oscillator  50/60 Hz rejection	PGA  Oscillator  50/60 Hz rejection	PGA  Oscillator  50/60 Hz rejection
Sample & Buy	Sample & Buy	Sample & Buy	Sample & Buy	Sample & Buy	Sample & B