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ADS1222IPWR
+StücklisteIC ADC 24BIT SIGMA-DELTA 14TSSOP
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HerstellerTexas Instruments
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Herstellerteil #ADS1222IPWR
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Paket TSSOP-14
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Auf Lager3095
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Number of Bits | 24 |
| Sampling Rate(Per Second) | 240 |
| Number of Inputs | 2 |
| Input Type | Differential, Single Ended |
| Data Interface | SPI |
| Configuration | MUX-ADC |
| Number of A/D Converters | 1 |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Voltage - Supply, Analog | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V |
| Features | Temperature Sensor |
| Operating Temperature | -40°C ~ 85°C |
| Supplier Device Package | 14-TSSOP |
Übersicht
Description
The ADS1222IPWR operates from a single 2.7V to 5.5V supply and has low power consumption, making it suitable for battery-powered applications. It includes an onboard oscillator, simplifying the system design by eliminating the need for an external clock. The ADC communicates via a simple 3-wire serial interface compatible with SPI, ensuring ease of integration with microcontrollers and digital signal processors.
With a high input impedance and low offset drift, the ADS1222IPWR provides accurate and stable measurements over time. Its compact TSSOP package makes it ideal for space-constrained applications. Overall, the ADS1222IPWR is a versatile and reliable choice for precision measurement tasks.
Equivalent
1. Analog Devices AD7792: Offers similar precision and functionality.
2. Maxim Integrated MAX11200: Another 24-bit ADC with comparable specs.
3. Microchip MCP3551: Provides similar high-resolution A/D conversion.
4. Cirrus Logic CS5530: Functions in a similar role with precision measurements.
Always verify specific requirements and compatibility before selecting an equivalent.
Features
1. 24-Bit Resolution: Offers high precision and accurate data conversion.
2. Low Noise: Designed to deliver low-noise signal conversions, enhancing measurement accuracy.
3. Two-Channel Input: Supports two differential inputs, suitable for bridge sensors.
4. Programmable Data Rates: Provides selectable data rates for flexibility in optimizing speed and resolution.
5. Internal Clock: Integrates an internal oscillator eliminating the need for an external clock source.
6. Low Power Consumption: Designed for low power use, ideal for battery-operated devices.
7. On-Chip Voltage Reference: Includes an internal reference voltage, reducing external component requirements.
8. Serial Peripheral Interface (SPI): Offers easy integration with microcontrollers via a simple serial interface.
9. Small Package Size: Available in a TSSOP-16 package, suitable for space-constrained applications.
10. Wide Operating Temperature Range: Ensures reliable performance across various environmental conditions.
These features make the ADS1222IPWR suitable for applications requiring precise, low-noise measurements, such as in weight scales and other sensor-based instrumentation.
Pinout
1. VDD: Power supply voltage.
2. GND: Ground connection.
3. AINP/AINN: Differential analog input pair.
4. REFP/REFN: Positive and negative reference voltage inputs.
5. DOUT/DRDY: Serial data output and data ready signal.
6. SCLK: Serial clock input for SPI communication.
7. CS: Chip select for enabling SPI communication.
8. PGA (Programmable Gain Amplifier): Sets the PGA gain.
9. XTALIN/XTALOUT: Connections for an external crystal oscillator (if used).
10. MUX: Multiplexer control for selecting inputs.
These pins enable the ADS1222IPWR to perform precise data conversion with a focus on low power consumption and high accuracy, suitable for applications such as sensor measurements and data acquisition systems.
Manufacturer
Application
1. Weigh Scales: Due to its high precision, it is ideal for digital weigh scales and industrial scales.
2. Sensor Interfaces: It serves in interfacing with sensors requiring precise data conversion, like temperature sensors and pressure sensors.
3. Medical Instrumentation: Utilized in medical devices for accurate data acquisition.
4. Data Acquisition Systems: Used in systems that require high-resolution and low-noise data conversion.
5. Laboratory Instruments: Ideal for laboratory equipment that demands precision measurements.
These applications leverage the ADS1222IPWR’s high-resolution, low-noise performance, and low power consumption.