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Part Number: ADS1234
Description: The ADS1232 and ADS1234 are precision analog-to-digital (A/D) converters featuring ...
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ADS1234
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DataSheet
General Description
ADS1234 General Description
The ADS1232 and ADS1234 are precision analog-to-digital (A/D) converters featuring true 23.5 effective-bit performance and exceptional ease of use. Selectable gains of 1, 2, 64, or 128 allow full-scale differential input ranges of ±2.5V to ±19.5mV with a +5V reference. While the ADS1232 offers a two-channel differential input and a built-in temperature sensor, the ADS1234 features a four-channel differential input multiplexer. A very low-noise Gain-Amp features low differential input current to minimize errors when using high-impedance transducers. An on-board oscillator is provided for excellent 50Hz and 60Hz rejection without an external clock source. The devices also feature a low current driver to accommodate an external crystal; they also accept external clock sources for all applications.
All of the features of the ADS1232/ADS1234 are hard-wire selected, without software programming.Data is accessed over a simple serial interface compatible with popular microcontrollers such as the MSP430. The ADS1232 is available in the 24-pin TSSOP package, and the ADS1234 is available in the 28-pin TSSOP.
ADS1234 Maximum Ratings
| ADS1232, ADS1234 | UNIT | |
| AVDD to AGND | -0.3 to +6 | V |
| DVDD to DGND | -0.3 to +6 | V |
| AGND to DGND | -0.3 to+ 0.3 | V |
| Input Current | 100, momentary | mA |
| Input Current | 10, continuous | mA |
| Analog Input Voltage to AGND | -0.3 to AVDD + 0.3 | V |
| Digital Input Voltage to DGND | -0.3 to DVDD + 0.3 | V |
| Maximum Junction Temperature | +150 | °C |
| Operating Temperature Range | -40 to +85 | °C |
| Storage Temperature Range | -65 to +150 | °C |
| Lead Temperature (soldering, 10s) | +300 | °C |
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
ADS1234 Features
` Up to 23.5 Effective Bits
` RMS Noise:
17nV at 10Hz
44nV at 80Hz
` On-Board Low Noise Gain-Amp
` 19.2-Bit Noise-Free Resolution at Gain = 64
` Simultaneous 50Hz and 60Hz Rejection:
Internal Clock: 110 dB
External Clock: 130 dB
` ±1% Low-Drift On-Board Oscillator
` Selectable Gains of 1, 2, 64, and 128
` Selectable 10/80SPS Conversion Rates
` 2-Channel Differential Input with Built-In Tempsensor (ADS1232)
` Simple Serial Digital Interface
` Supply Range: 2.7V to 5.3V
` 40°C to +105°C Temperature Range
` RMS Noise:
17nV at 10Hz
44nV at 80Hz
` On-Board Low Noise Gain-Amp
` 19.2-Bit Noise-Free Resolution at Gain = 64
` Simultaneous 50Hz and 60Hz Rejection:
Internal Clock: 110 dB
External Clock: 130 dB
` ±1% Low-Drift On-Board Oscillator
` Selectable Gains of 1, 2, 64, and 128
` Selectable 10/80SPS Conversion Rates
` 2-Channel Differential Input with Built-In Tempsensor (ADS1232)
` Simple Serial Digital Interface
` Supply Range: 2.7V to 5.3V
` 40°C to +105°C Temperature Range
ADS1234 Typical Application
· Weigh Scales
· Strain Gauges
· Bridge Sensors
· Industrial Process Control
· Strain Gauges
· Bridge Sensors
· Industrial Process Control
ADS1234
PDF/DataSheet Download
- Datasheet: ADS1234
- File Size: 170132 KB
- Manufacturer: BURR-BROWN [Burr-Brown Corporation]
- Click here to Download
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The ADS1232IPWR is a type of precision analog-to-digital(A/D)converters. Selectable gains of 1,2,64 or 128 accept fu ll-scale differential input ranges of ±2.5V to±19.5mV with a +5V reference. When the ADS1232IPWR provides a two-channel differential input an...
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ADS1232
The ADS1232 and ADS1234 are precision analog-to-digital (A/D) converters featuring true 23.5 effective-bit performance and exceptional ease of use. Selectable gains of 1, 2, 64, or 128 allow full-scale differential input ranges of ±2.5V to ±19.5mV with a +5V...
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