ADS1224 Series
24-bit 240-SPS ADC with 4-channel differential input multiplexer, high-Z buffer, and serial output
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
24-bit 240-SPS ADC with 4-channel differential input multiplexer, high-Z buffer, and serial output
| Part | Architecture | Supplier Device Package | Features | Voltage - Supply, Analog [Max] | Voltage - Supply, Analog [Min] | Data Interface | Number of Inputs | Operating Temperature [Min] | Operating Temperature [Max] | Mounting Type | Voltage - Supply, Digital [Max] | Voltage - Supply, Digital [Min] | Reference Type | Sampling Rate (Per Second) | Input Type | Configuration | Number of A/D Converters | Package / Case | Package / Case | Package / Case | Number of Bits | Supplied Contents | Utilized IC / Part | Power (Typ) @ Conditions | Input Range [Min] | Input Range [Max] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments ADS1224IPWR | Sigma-Delta | 20-TSSOP | Temperature Sensor | 5.5 V | 2.7 V | SPI | 2 | -40 °C | 85 °C | Surface Mount | 5.5 V | 2.7 V | External | 240 Per Second | Differential, Single Ended | MUX-ADC | 1 | 0.173 in | 4.4 mm | 20-TSSOP | 24 | |||||
Texas Instruments ADS1224IPWTG4 | Sigma-Delta | 20-TSSOP | Temperature Sensor | 5.5 V | 2.7 V | SPI | 2 | -40 °C | 85 °C | Surface Mount | 5.5 V | 2.7 V | External | 240 Per Second | Differential, Single Ended | MUX-ADC | 1 | 0.173 in | 4.4 mm | 20-TSSOP | 24 | |||||
Texas Instruments ADS1224IPWT | Sigma-Delta | 20-TSSOP | Temperature Sensor | 5.5 V | 2.7 V | SPI | 2 | -40 °C | 85 °C | Surface Mount | 5.5 V | 2.7 V | External | 240 Per Second | Differential, Single Ended | MUX-ADC | 1 | 0.173 in | 4.4 mm | 20-TSSOP | 24 | |||||
Texas Instruments ADS1224EVM | Serial | 240 Per Second | 1 | 24 | Board(s) | ADS1224 | 1 mW | -5 V | 5 V |
Key Features
• 240SPS Data Rate with 4MHz Clock20-Bit Effective ResolutionInput Multiplexer with Four Differential ChannelsPin-Selectable, High-Impedance Input Buffer±5V Differential Input Range0.0003% INL (typ), 0.0015% INL (max)Self-CalibratingSimple 2-Wire Serial InterfaceOn-Chip Temperature SensorSingle Conversions with Standby ModeLow Current Consumption: 300µAAnalog Supply: 2.7V to 5.5VDigital Supply: 2.7V to 5.5VApplicationsHand-Held InstrumentationPortable Medical EquipmentIndustrial Process ControlWeigh ScalesAll trademarks are the property of their respective owners.240SPS Data Rate with 4MHz Clock20-Bit Effective ResolutionInput Multiplexer with Four Differential ChannelsPin-Selectable, High-Impedance Input Buffer±5V Differential Input Range0.0003% INL (typ), 0.0015% INL (max)Self-CalibratingSimple 2-Wire Serial InterfaceOn-Chip Temperature SensorSingle Conversions with Standby ModeLow Current Consumption: 300µAAnalog Supply: 2.7V to 5.5VDigital Supply: 2.7V to 5.5VApplicationsHand-Held InstrumentationPortable Medical EquipmentIndustrial Process ControlWeigh ScalesAll trademarks are the property of their respective owners.
Description
AI
The ADS1224 is a 4-channel, 24-bit, delta-sigma analog- to-digital (A/D) converter. It offers excellent performance and low power in a TSSOP-20 package. The ADS1224 is well-suited for demanding, high-resolution measurements, especially in portable systems and other space-saving and power-constrained applications.
A delta-sigma (ΔΣ) modulator and digital filter form the basis of the A/D converter. The analog modulator has a ±5V differential input range. An input multiplexer (MUX) is used to select between four separate differential input channels. A buffer can be selected to increase the input impedance of the measurement.
A simple, 2-wire serial interface provides all the necessary control. Data retrieval, self-calibration, and Standby mode are handled with a few simple waveforms. When only single conversions are needed, the ADS1224 can be quickly shut down (Standby mode) while idle between measurements to dramatically reduce the overall power consumption. Multiple ADS1224s can be connected together to create a synchronously sampling multichannel measurement system. The ADS1224 is designed to easily connect to microcontrollers, such as the MSP430.
The ADS1224 supports 2.7V to 5.5V analog supplies and 2.7V to 5.5V digital supplies. Power is typically less than 1mW in 3V operation and less than 1µW during Standby mode.
The ADS1224 is a 4-channel, 24-bit, delta-sigma analog- to-digital (A/D) converter. It offers excellent performance and low power in a TSSOP-20 package. The ADS1224 is well-suited for demanding, high-resolution measurements, especially in portable systems and other space-saving and power-constrained applications.
A delta-sigma (ΔΣ) modulator and digital filter form the basis of the A/D converter. The analog modulator has a ±5V differential input range. An input multiplexer (MUX) is used to select between four separate differential input channels. A buffer can be selected to increase the input impedance of the measurement.
A simple, 2-wire serial interface provides all the necessary control. Data retrieval, self-calibration, and Standby mode are handled with a few simple waveforms. When only single conversions are needed, the ADS1224 can be quickly shut down (Standby mode) while idle between measurements to dramatically reduce the overall power consumption. Multiple ADS1224s can be connected together to create a synchronously sampling multichannel measurement system. The ADS1224 is designed to easily connect to microcontrollers, such as the MSP430.
The ADS1224 supports 2.7V to 5.5V analog supplies and 2.7V to 5.5V digital supplies. Power is typically less than 1mW in 3V operation and less than 1µW during Standby mode.