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Product Detailed Parameters
- Description：IC ADC 24BIT SIGMA-DELTA 48TQFP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Bits：24
- Sampling Rate (Per Second)：780
- Number of Inputs：8
- Input Type：Differential
- Data Interface：SPI
- Configuration：MUX-PGA-ADC
- Ratio - S/H:ADC：-
- Number of A/D Converters：1
- Architecture：Sigma-Delta
- Reference Type：External, Internal
- Voltage - Supply, Analog：2.7V ~ 3.3V, 5V
- Voltage - Supply, Digital：2.7V ~ 5.25V
- Features：PGA
- Operating Temperature：-40°C ~ 85°C
- Package / Case：48-TQFP
- Supplier Device Package：48-TQFP (7x7)
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The ADS1217IPFBT is a high-precision, eight-channel, 24-bit analog-to-digital converter (ADC) utilizing sigma-delta architecture. It operates on a single supply voltage ranging from 2.7 V to 5.25 V for both analog and digital domains. The device features an integrated programmable gain amplifier (PGA), excitation current sources (iDACs), and a built-in oscillator. It supports SPI communication and delivers a maximum data rate of 780 samples per second. Key performance metrics include a differential nonlinearity (DNL) of ±1 LSB and integral nonlinearity (INL) of 0.0012% FSR. The component is housed in a 48-pin TQFP package and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates eight differential input channels with a dedicated 24-bit sigma-delta converter.
Applications
- Industrial process control systems requiring multi-channel signal acquisition.
Procurement Notes
Verify the specific suffix against official Texas Instruments documentation to confirm pinout compatibility and electrical specifications. Ensure the ordering code matches the required package variant and temperature rating. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before finalizing procurement orders.
Selection Notes
Select this component when designing systems that require simultaneous sampling of multiple low-frequency signals with high resolution. Consider the integrated PGA and iDAC capabilities if reducing external circuitry complexity is a priority. Verify that the system power budget accommodates the specified operating voltage range and that the SPI interface timing aligns with the host microcontroller constraints.
Part Context
This device belongs to the ADS121x family of precision ADCs from Texas Instruments. It shares architectural similarities with the ADS1216 and ADS1218 but distinguishes itself through its eight-channel configuration. This series is engineered for applications demanding high accuracy and noise rejection in compact form factors.
Replacement Considerations
ADS1217IPFBR
FAQ
What is the maximum data conversion rate of the ADS1217IPFBT?
The maximum output data rate is 780 samples per second.
Does the ADS1217IPFBT support single-ended inputs?
No, the device specifies differential input types only.
What is the specified INL accuracy for this ADC?
The integral nonlinearity (INL) is specified at 0.0012% of the full-scale range.
