TS1872AIDT STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
STMicroelectronics TS1872AIDT is a low-power rail-to-rail input/output operational amplifier operating from a 1.8 V supply with 80 dB CMRR and 1500 µV max offset. Key specs: voltage-feedback architecture, 0.15 µA max bias current, SOIC package, frequency compensation. Available from stock worldwide.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TS1872AIDT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3360(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1.8 V rail-to-rail input and output swing maximizes dynamic range in low-voltage supply designs
- 80 dB typical CMRR with 60 dB minimum ensures excellent common-mode noise rejection in sensor amplifier circuits
- Ultra-low bias current of 0.13 µA at 25°C minimizes loading on high-impedance sensor sources
- Voltage-feedback architecture with internal frequency compensation simplifies stable closed-loop filter design
- Low-power consumption enables extended battery life in portable and wearable sensor applications
Applications
The TS1872AIDT is designed for battery-powered and low-voltage portable applications such as wearable health monitors, handheld measurement instruments, and IoT sensor nodes where a 1.8 V rail-to-rail op-amp with ultra-low 0.13 µA bias current and 80 dB CMRR is needed for accurate signal conditioning. It also serves as a precision amplifier in 1.8 V analog front-ends for medical electrodes, microphone pre-amplifiers, and low-power active filter stages where a 1500 µV maximum offset is acceptable.
Specifications
| Factory Lead Time | 20Weeks |
| YTEOL | 7.8 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.15 µA |
| Bias Current-Max (IIB) @25C | 0.13 µA |
| Common-mode Reject Ratio-Min | 60dB |
| Common-mode Reject Ratio-Nom | 80dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 1500 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | NO |
| Low-Offset | NO |
| Micropower | YES |
| Number of Functions | 8 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Min | 0.38V/us |
| Slew Rate-Nom | 0.6V/us |
| Supply Current-Max | 1.75mA |
| Supply Voltage Limit-Max | 7V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Unity Gain BW-Nom | 1700 |
| Voltage Gain-Min | 3160 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Morocco |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage and input/output swing does TS1872AIDT support for wearable sensor designs?
The TS1872AIDT operates from a 1.8 V supply and provides rail-to-rail input and output swings, meaning the input common-mode range and output voltage both span nearly the full supply range from approximately 0 V to 1.8 V. This maximizes signal dynamic range in wearable sensors and portable devices where headroom is limited by a single lithium-cell supply.
How does the 80 dB CMRR of TS1872AIDT benefit ECG or biomedical signal amplification?
The TS1872AIDT achieves a typical common-mode rejection ratio of 80 dB, with a guaranteed minimum of 60 dB. In ECG and biomedical amplifiers, high CMRR is critical for rejecting 50 Hz or 60 Hz mains interference that appears as a common-mode signal on patient electrodes, ensuring the amplified differential biopotential signal is not masked by power-line noise even at 1.8 V supply.
With a 0.13 µA bias current, how does TS1872AIDT perform when connected to a high-impedance photodiode or pH electrode?
The TS1872AIDT's maximum input bias current of 0.15 µA (0.13 µA typical at 25°C) creates only a small voltage error when driving a high-impedance source such as a photodiode or pH electrode with megaohm source resistance. For a 1 MΩ source, the bias current error is only 0.15 V, which combined with the 1500 µV maximum input offset, keeps total DC error well within acceptable limits for many low-power sensor interfaces.
What is the procurement lead time for TS1872AIDT, and does it affect production planning for high-volume consumer devices?
The TS1872AIDT carries a factory lead time of approximately 20 weeks according to STMicroelectronics data. For high-volume consumer or medical device production, this 20-week lead time means buyers should place orders well in advance or maintain buffer inventory to avoid supply gaps, particularly given the device's specialized 1.8 V rail-to-rail characteristics that make direct substitution less straightforward.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.9600 | $0.96 |
| 100+ | $0.8200 | $82.00 |
| 250+ | $0.7400 | $185.00 |
| 400+ | $0.6750 | $270.00 |
| 2001+ | $0.3520 | $704.35 |
| 4262+ | $0.3360 | $1432.03 |
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