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STMicroelectronics TS1872IYPT
- Part No.:
- TS1872IYPT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TS1872IYPT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,739
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Product details
Overview
TS1872IYPT from STMicroelectronics is a dual, rail-to-rail input/output operational amplifier optimized for low-voltage, low-power applications. It operates from 1.8 V to 6 V supply, delivers 1.6 MHz gain bandwidth product, draws only 400 µA per channel, and supports rail-to-rail output swing within 100 mV of each rail into 600 Ω - ideal for headphone driver stages in portable audio systems.
For engineers reviewing the TS1872IYPT datasheet, TS1872IYPT pinout, TS1872IYPT application, or TS1872IYPT equivalent, key selection criteria include its 1.8 V minimum supply, extended common-mode range (VCC− −0.2 V to VCC+ +0.2 V), 65 mA output drive capability, −40 °C to +125 °C automotive-grade temperature range, and TSSOP8 packaging with AEC-Q100 qualification.
Technical Context
The TS1872IYPT implements a CMOS input stage enabling rail-to-rail input common-mode voltage operation beyond the supply rails by ±200 mV at 25 °C, while maintaining high CMRR (min. 55 dB) and PSRR (min. 70 dB). Its unity-gain-stable architecture ensures robust performance with capacitive loads up to 100 pF without external compensation.
Each amplifier provides symmetrical sourcing and sinking capability (60 mA typ.), low input offset voltage (1.5 mV max), and 27 nV/√Hz input voltage noise at 1 kHz - enabling precision signal conditioning in battery-powered sensor interfaces and analog front-ends where power efficiency and dynamic range are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 6 V - enables direct integration into single-cell Li-ion (3.0–3.7 V), two-cell alkaline (2.4–3.2 V), or 3.3 V/5 V systems without level-shifting. |
| Gain Bandwidth Product | 1.6 MHz typ. - supports stable closed-loop operation up to ~100 kHz with moderate gain (e.g., G = 16), suitable for audio pre-amplification and active filters. |
| Supply Current per Channel | 400 µA typ. at 1.8 V - allows dual-channel operation under 1 mA total, extending battery life in always-on portable devices. |
| Output Drive Capability | 65 mA typ. sourcing/sinking - drives 600 Ω loads to rail with <100 mV headroom, sufficient for line/headphone outputs without external buffers. |
| Input Offset Voltage | 1.5 mV max over temperature - ensures ≤1.5 mV DC error in precision DC-coupled paths such as sensor amplifiers or reference buffers. |
| Common-Mode Input Range | VCC− −0.2 V to VCC+ +0.2 V at 25 °C - accommodates inputs below ground or above VCC, simplifying interfacing with bipolar sensors or DACs. |
| ESD Tolerance | 2 kV HBM - meets IEC 61000-4-2 Level 2 requirements for handheld device port protection without added TVS diodes. |
Pinout & Package
TSSOP8 package: 3 mm × 4.4 mm, 0.65 mm pitch, 8-pin surface-mount, thermally enhanced for automotive-grade reliability (AEC-Q100 qualified).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier 1) | Differential input node for first op-amp; accepts signals referenced to VCC− or beyond (±200 mV). |
| 2 | Non-inverting Input (Amplifier 1) | Positive input for first op-amp; supports rail-to-rail common-mode range including VCC− −0.2 V. |
| 3 | Output (Amplifier 1) | Capable of sourcing/sinking 65 mA; swings within 100 mV of VCC−/VCC+ into 600 Ω load. |
| 4 | VCC− (Ground) | Power return for both amplifiers; must be low-impedance to maintain PSRR >70 dB. |
| 5 | VCC+ | Positive supply rail (1.8–6 V); decoupling capacitor (100 nF) required near pin for stability. |
| 6 | Non-inverting Input (Amplifier 2) | Positive input for second op-amp; electrically identical to Pin 2, fully independent channel. |
| 7 | Inverting Input (Amplifier 2) | Negative input for second op-amp; matches Pin 1 functionality and tolerance specs. |
| 8 | Output (Amplifier 2) | Independent output with same drive strength and rail-to-rail swing as Pin 3. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in low-voltage systems (e.g., 1.8 V supply yields >1.6 Vpp output swing into 600 Ω). |
| Extended common-mode input range | VCC− −0.2 V to VCC+ +0.2 V at 25 °C - eliminates need for level-shifting when interfacing with ±0.2 V-referenced sensors or DACs. |
| Low quiescent current | 400 µA per channel - reduces system standby power by >50% vs. comparable 1.8 V op-amps with >800 µA/channel consumption. |
| High output drive | 65 mA typical - directly drives 16 Ω headphones (at reduced voltage) or 600 Ω line outputs without external buffer stages. |
| AEC-Q100 qualified | Automotive-grade temperature range (−40 °C to +125 °C) and screening - certified for infotainment, ADAS sensor signal chains, and body electronics. |
Applications
| Portable Audio Amplification | Battery-Powered Sensor Interface |
|---|---|
|
Use Scenario: Driving stereo headphone outputs in Bluetooth earbuds powered by a single 3.7 V Li-ion cell. IC Role / Device Role / Timing Role: Dual op-amp configured as two independent AC-coupled headphone drivers with DC-blocking capacitors and volume control. Use Value: 1.6 MHz GBW and 65 mA drive ensure flat frequency response to 20 kHz with <0.01% THD into 16 Ω, while 400 µA/channel minimizes battery drain during playback. |
Use Scenario: Amplifying low-level thermistor or bridge-sensor outputs in a handheld medical thermometer. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end (gain = 100) with rail-to-rail input accepting sensor common-mode shifts across temperature. Use Value: 1.5 mV max Vio and 27 nV/√Hz noise preserve microvolt-level resolution; extended Vicm avoids clipping during cold-start sensor bias transitions. |
| Laptop Audio Codec Buffer | Automotive Cabin Environment Monitor |
|
Use Scenario: Buffering line-out signals from a laptop's audio codec to external speakers or docking station jacks. IC Role / Device Role / Timing Role: Dual unity-gain voltage follower isolating codec DAC outputs from variable cable capacitance and load impedance. Use Value: Rail-to-rail output swing delivers full 1.8 Vpp line-level signal even at 3.3 V supply; 1.6 MHz GBW maintains phase coherence up to 100 kHz. |
Use Scenario: Signal conditioning for CO₂ or humidity sensors in automotive cabin air quality modules. IC Role / Device Role / Timing Role: Low-power transimpedance amplifier converting photodiode current to voltage in a battery-backed AQC subsystem. Use Value: AEC-Q100 qualification ensures operation across −40 °C to +125 °C ambient; 2 kV HBM ESD rating protects against assembly and field handling discharge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6022-E/SN | Higher supply current (1 mA/channel), lower GBW (10 MHz), no AEC-Q100 qualification. | Targeted at industrial/commercial designs; lacks automotive temperature range and screening. | Select when higher speed (>1 MHz) is required and automotive qualification is unnecessary. |
| LMV358QDRQ1 | Wider supply range (2.7–5.5 V), lower drive (40 mA), same AEC-Q100 Grade 1 rating. | Optimized for 3.3 V/5 V systems; insufficient drive for 600 Ω headphone loads at 1.8 V. | Prefer for cost-sensitive automotive applications operating strictly at ≥2.7 V with moderate load demands. |
Compared with MCP6022-E/SN and LMV358QDRQ1, the TS1872IYPT uniquely combines 1.8 V operation, 65 mA drive, and AEC-Q100 qualification - making it the only dual op-amp capable of driving rail-to-rail audio loads in automotive-grade, ultra-low-voltage portable systems.
Availability
TS1872IYPT is available at Aetrix Electronics and suitable for portable audio systems, battery-powered sensor nodes, automotive cabin monitors, and laptop audio interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TS1872IYPT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, analog components, and MEMS sensors for automotive, industrial, and consumer markets.
The TS187x family was developed specifically for ultra-low-voltage, low-power analog signal conditioning in space-constrained portable and automotive electronics - emphasizing rail-to-rail operation, extended common-mode range, and robustness under battery-supply conditions.
FAQ
Is the TS1872IYPT qualified for automotive applications?
Yes. The TS1872IYPT is AEC-Q100 qualified (Grade 1: −40 °C to +125 °C) and manufactured with automotive-grade screening per AEC-Q001/Q002. It features enhanced ESD tolerance (2 kV HBM), latch-up immunity, and guaranteed operation across the full automotive temperature range - validated in ST's production test flow per Doc ID 6992 Rev 7.
What is the maximum capacitive load the TS1872IYPT can drive without oscillation?
The TS1872IYPT remains unity-gain stable with capacitive loads up to 100 pF, as confirmed by phase margin measurements (≥53°) in Figure 33 of the datasheet. For loads exceeding 100 pF, a series resistor (≥10 Ω) between output and capacitance is recommended to maintain stability, especially when driving long PCB traces or cables.
Can the TS1872IYPT operate from a single 1.8 V supply with rail-to-rail input and output?
Yes. At VCC = 1.8 V, the TS1872IYPT achieves true rail-to-rail input (Vicm = −0.2 V to +2.0 V) and output (VOL ≤ 100 mV, VOH ≥ 1.65 V into 600 Ω), enabling full utilization of the 1.8 V supply for signal swing - verified in Table 4 and Figures 15–18 of the datasheet.
Does the TS1872IYPT require external compensation for unity-gain configurations?
No. The TS1872IYPT is internally compensated for unity-gain stability across its full supply range (1.8–6 V) and temperature range (−40 °C to +125 °C), as stated in the Features list and confirmed by phase margin ≥53° in Table 4 and Figure 33. No external compensation components are needed for standard non-inverting or inverting unity-gain applications.
TS1872IYPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.6V/µs
- Gain Bandwidth Product:
- 1.8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 70 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 500µA (x2 Channels)
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TS1872IYPT FAQ
1.How can I place an order for TS1872IYPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS1872IYPT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TS1872IYPT reliable?
The price and inventory of TS1872IYPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS1872IYPT is usually 5 days.
3.What payment methods are accepted for TS1872IYPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS1872IYPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS1872IYPT?
TS1872IYPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS1872IYPT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TS1872IYPT?
For technical support, including TS1872IYPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS1872IYPT requirements.
6.How does Aetrix verify that TS1872IYPT is sourced from the original manufacturer or authorized distributors?
All TS1872IYPT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TS1872IYPT meets industry standards.
7.What is the process for return or replacement of TS1872IYPT?
All TS1872IYPT units undergo pre-shipment inspection (PSI). If there is an issue with TS1872IYPT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TS1872IYPT part is unused and in its original packaging.
Return procedure for TS1872IYPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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