Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Number of Bits | 24 |
| Sampling Rate(Per Second) | 15 |
| Number of Inputs | 4 |
| Input Type | Differential, Single Ended |
| Data Interface | SPI |
| Configuration | MUX-PGA-ADC |
| Number of A/D Converters | 1 |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Voltage - Supply, Analog | 2.7V ~ 3.3V, 5V |
| Voltage - Supply, Digital | 2.7V ~ 5.25V |
| Features | PGA |
| Operating Temperature | -40°C ~ 85°C |
| Supplier Device Package | 16-TSSOP |
Tổng quan
Description
The ADS1242IPWR is a 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) from Texas Instruments, designed for high-precision measurement in industrial and sensor applications.
### Key Features:
- Resolution: 24 bits with low noise (1.5 µV RMS at 20 SPS).
- Inputs: 2 differential or 4 single-ended channels.
- Interface: SPI-compatible for easy microcontroller communication.
- Integrated Features: PGA (gain: 1–128), voltage reference, and temperature sensor.
- Low Power: Operates at 0.8 mW (typical).
### Applications:
- Industrial process control
- Weigh scales
- Temperature and pressure sensing
### Package:
- TSSOP-16 (IPWR) for compact PCB designs.
The ADS1242IPWR excels in low-noise, high-accuracy signal acquisition, making it ideal for precision sensor interfaces.
### Key Features:
- Resolution: 24 bits with low noise (1.5 µV RMS at 20 SPS).
- Inputs: 2 differential or 4 single-ended channels.
- Interface: SPI-compatible for easy microcontroller communication.
- Integrated Features: PGA (gain: 1–128), voltage reference, and temperature sensor.
- Low Power: Operates at 0.8 mW (typical).
### Applications:
- Industrial process control
- Weigh scales
- Temperature and pressure sensing
### Package:
- TSSOP-16 (IPWR) for compact PCB designs.
The ADS1242IPWR excels in low-noise, high-accuracy signal acquisition, making it ideal for precision sensor interfaces.
Equivalent
Equivalent products to the ADS1242IPWR (24-bit ADC) include:
- ADS1241IPWR (similar specs, lower resolution)
- ADS1243IPWR (higher channel count)
- LTC2440 (24-bit, high precision)
- MCP3551 (low-cost 24-bit ADC)
- MAX11254 (24-bit, low-power)
These alternatives offer comparable performance in precision measurement applications. Check datasheets for exact compatibility.
- ADS1241IPWR (similar specs, lower resolution)
- ADS1243IPWR (higher channel count)
- LTC2440 (24-bit, high precision)
- MCP3551 (low-cost 24-bit ADC)
- MAX11254 (24-bit, low-power)
These alternatives offer comparable performance in precision measurement applications. Check datasheets for exact compatibility.
Features
The ADS1242IPWR is a 24-bit, delta-sigma ADC with low noise, high precision, and low power consumption. Key features:
- Resolution: 24 bits
- Channels: 2 differential or 4 single-ended
- Data Rate: Up to 2 kSPS
- Input Range: ±2.5V (PGA gain = 1)
- PGA (Programmable Gain Amplifier): 1 to 128
- Low Noise: 1.1 µV RMS (PGA=128, 20SPS)
- Interface: SPI-compatible
- Power Supply: 2.7V to 5.25V
- Low Power: 0.8 mW (3V supply, 20SPS)
- Built-in Features: Excitation current sources (IDACs), burnout detection, and temperature sensor
- Package: TSSOP-16
Ideal for industrial sensors, weigh scales, and medical instruments requiring high accuracy.
- Resolution: 24 bits
- Channels: 2 differential or 4 single-ended
- Data Rate: Up to 2 kSPS
- Input Range: ±2.5V (PGA gain = 1)
- PGA (Programmable Gain Amplifier): 1 to 128
- Low Noise: 1.1 µV RMS (PGA=128, 20SPS)
- Interface: SPI-compatible
- Power Supply: 2.7V to 5.25V
- Low Power: 0.8 mW (3V supply, 20SPS)
- Built-in Features: Excitation current sources (IDACs), burnout detection, and temperature sensor
- Package: TSSOP-16
Ideal for industrial sensors, weigh scales, and medical instruments requiring high accuracy.
Pinout
The ADS1242IPWR is a 24-bit delta-sigma ADC in a TSSOP-16 package (16 pins). Key functions include:
- Analog Inputs: 2 differential/4 single-ended channels (pins 1–4, 16).
- Reference Inputs: REFP0/REFN0 (pins 5–6) for voltage reference.
- Digital Interface: SPI-compatible (pins 7–10: SCLK, DIN, DOUT, CS).
- Power Supply: AVDD/DVDD (pins 11, 15), AGND/DGND (pins 12, 14).
- Clock: External crystal (pins 13–14) or internal oscillator.
- Reset/DRDY: Pin 8 for reset or data-ready output.
Designed for high-precision measurements, it supports low-noise performance and flexible configurations.
- Analog Inputs: 2 differential/4 single-ended channels (pins 1–4, 16).
- Reference Inputs: REFP0/REFN0 (pins 5–6) for voltage reference.
- Digital Interface: SPI-compatible (pins 7–10: SCLK, DIN, DOUT, CS).
- Power Supply: AVDD/DVDD (pins 11, 15), AGND/DGND (pins 12, 14).
- Clock: External crystal (pins 13–14) or internal oscillator.
- Reset/DRDY: Pin 8 for reset or data-ready output.
Designed for high-precision measurements, it supports low-noise performance and flexible configurations.
Package
The ADS1242IPWR is a TSSOP-16 package. It's a thin-shrink small-outline package with 16 pins, designed for surface-mount applications. The "PWR" suffix indicates tape-and-reel packaging for automated assembly. The package dimensions are 5mm x 4.4mm x 1mm, making it compact for space-constrained designs.
