ADS1242IPWR 24-Bit ADC 4 Ch
♠ Product Description
| Product Attribute | Attribute Value |
| Manufacturer: | Texas Instruments |
| Product Category: | Analog to Digital Converters - ADC |
| Series: | ADS1242 |
| Mounting Style: | SMD/SMT |
| Package / Case: | TSSOP-16 |
| Resolution: | 24 bit |
| Number of Channels: | 4 Channel |
| Interface Type: | 3-Wire, SPI |
| Sampling Rate: | 15 S/s |
| Input Type: | Differential |
| Architecture: | Sigma-Delta |
| Analog Supply Voltage: | 2.7 V to 5.25 V |
| Digital Supply Voltage: | 2.7 V to 5.25 V |
| Minimum Operating Temperature: | - 40 C |
| Maximum Operating Temperature: | + 85 C |
| Packaging: | Reel |
| Packaging: | Cut Tape |
| Packaging: | MouseReel |
| Brand: | Texas Instruments |
| DNL - Differential Nonlinearity: | +/- 1 LSB |
| Features: | 50/60 Hz Rejection, GPIO, PGA |
| Height: | 1 mm |
| INL - Integral Nonlinearity: | +/- 0.0015 % FSR |
| Length: | 5 mm |
| Number of Converters: | 1 Converter |
| Operating Supply Voltage: | 2.7 V to 5.25 V |
| Pd - Power Dissipation: | 1.9 mW |
| Power Consumption: | 0.6 mW |
| Product Type: | ADCs - Analog to Digital Converters |
| Reference Type: | External |
| Factory Pack Quantity: | 2500 |
| Subcategory: | Data Converter ICs |
| Supply Voltage - Max: | 5.25 V |
| Supply Voltage - Min: | 2.7 V |
| Width: | 4.4 mm |
| Unit Weight: | 0.002183 oz |
♠ 24-Bit ANALOG-TO-DIGITAL CONVERTER
The ADS1242 and ADS1243 are precision, wide dynamic range, delta-sigma, analog-to-digital (A/D) converters with 24-bit resolution operating from 2.7V to 5.25V supplies. These delta-sigma, A/D converters provide up to 24 bits of no missing code performance and effective resolution of 21 bits.
The input channels are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burnout current sources are provided that allow for the detection of an open or shorted sensor. An 8-bit digital-to-analog converter (DAC) provides an offset correction with a range of 50% of the FSR (Full-Scale Range).
The Programmable Gain Amplifier (PGA) provides selectable gains of 1 to 128 with an effective resolution of 19 bits at a gain of 128. The A/D conversion is accomplished with a second-order delta-sigma modulator and programmable FIR filter that provides a simultaneous 50Hz and 60Hz notch. The reference input is differential and can be used for ratiometric conversion.
The serial interface is SPI compatible. Up to eight bits of data I/O are also provided that can be used for input or output. The ADS1242 and ADS1243 are designed for high-resolution measurement applications in smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.
● 24 BITS NO MISSING CODES
● SIMULTANEOUS 50Hz AND 60Hz REJECTION (–90dB MINIMUM)
● 0.0015% INL
● 21 BITS EFFECTIVE RESOLUTION (PGA = 1), 19 BITS (PGA = 128)
● PGA GAINS FROM 1 TO 128
● SINGLE-CYCLE SETTLING
● PROGRAMMABLE DATA OUTPUT RATES
● EXTERNAL DIFFERENTIAL REFERENCE OF 0.1V TO 5V
● ON-CHIP CALIBRATION
● SPI™ COMPATIBLE
● 2.7V TO 5.25V SUPPLY RANGE
● 600µW POWER CONSUMPTION
● UP TO EIGHT INPUT CHANNELS
● UP TO EIGHT DATA I/O
● INDUSTRIAL PROCESS CONTROL
● LIQUID/GAS CHROMATOGRAPHY
● BLOOD ANALYSIS
● SMART TRANSMITTERS
● PORTABLE INSTRUMENTATION
● WEIGHT SCALES
