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STMicroelectronics TS932AID
- Part No.:
- TS932AID
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS932AID.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,394
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Product details
Overview
TS932AID from STMicroelectronics is a dual rail-to-rail output micropower operational amplifier in SO-8 package, designed for low-voltage sensor signal conditioning and battery-powered instrumentation. It operates from 2.7 V to 10 V, consumes only 20 μA per amplifier (typ), delivers 2.95 V output high level at 3 V supply, and features 1 pA input bias current and 2 mV max input offset voltage (TS932B grade).
For engineers reviewing the TS932AID datasheet, TS932AID pinout, TS932AID application, or TS932AID equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation guidance, and confirmed alternative parts with documented functional differences.
Technical Context
The TS932AID integrates two independent CMOS-input op-amps with rail-to-rail output swing, enabling full dynamic range utilization in single-supply systems down to 2.7 V. Its 100 kHz gain-bandwidth product and 50 V/ms slew rate support precision DC and low-frequency AC signal amplification without phase distortion.
It achieves ultra-low input bias current (1 pA typ) and high common-mode rejection (85 dB min for TS932B), making it suitable for high-impedance pH electrode buffering and microamp-level current sensing where leakage must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - enables direct operation from single Li-ion cell (3.0–3.7 V) or two alkaline cells (3.0 V nominal) without regulation. |
| Supply Current per Amp | 20 μA (typ) - extends battery life beyond 10 years in 10 μA-sleep-cycle sensor nodes powered by CR2032 coin cell. |
| Input Offset Voltage | 2 mV (max, TS932B) - supports ≤0.1% accuracy in 2.5 V full-scale analog front-ends without trimming. |
| Input Bias Current | 1 pA (typ) - prevents >10 MΩ source impedance from introducing >10 mV error in high-Z sensor interfaces. |
| Output Swing | 2.95 V (high), 10 mV (low) at 3 V supply, RL = 100 kΩ - delivers true rail-to-rail output usable for ADC reference scaling and comparator thresholds. |
| Gain-Bandwidth Product | 100 kHz - sufficient for anti-aliasing filtering and sensor signal conditioning up to 10 kHz with stable unity-gain configuration. |
| Common-Mode Rejection | 85 dB (min, TS932B) - rejects power supply ripple and EMI-induced common-mode noise in noisy industrial environments. |
Pinout & Package
TS932AID is housed in an SO-8 (Small Outline-8) surface-mount package with 1.27 mm pitch, 4.9 mm × 6.0 mm body, and ECOPACK® RoHS-compliant finish. Thermal resistance junction-to-ambient is 125 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier 1) | Accepts differential input signal referenced to non-inverting input; high-impedance node requiring guard trace routing. |
| 2 | Non-inverting Input (Amplifier 1) | Reference point for amp 1; matched to pin 1 for optimal CMRR; avoid capacitive loading >2 pF. |
| 3 | Output (Amplifier 1) | Delivers rail-to-rail buffered signal; capable of sourcing/sinking 1.5 mA into 100 kΩ load. |
| 4 | VCC− (Ground) | Power return for both amplifiers; must connect to low-impedance ground plane with dedicated via near pin. |
| 5 | VCC+ (Supply) | Positive supply rail; requires local 100 nF ceramic decoupling capacitor placed within 2 mm of pin. |
| 6 | Output (Amplifier 2) | Independent output stage; electrically isolated from pin 3; shares same supply rails. |
| 7 | Non-inverting Input (Amplifier 2) | Input for second amplifier; identical electrical characteristics to pin 2; no internal cross-coupling. |
| 8 | Inverting Input (Amplifier 2) | Differential input for amp 2; matches pin 1 in offset and bias performance; layout symmetry recommended. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full utilization of 3 V ADC reference without level-shifting circuitry or supply boosting. |
| Micropower operation (20 μA/amp) | Reduces quiescent power to 60 μW at 3 V, critical for multi-year battery life in wireless sensor nodes. |
| CMOS inputs with 1 pA bias current | Preserves signal integrity when interfacing with high-impedance sources like glass pH electrodes or piezoresistive sensors. |
| Low input offset voltage (2 mV max) | Eliminates need for external trimming in portable medical devices and handheld test equipment. |
| Automotive-grade temperature range | Rated for −40 °C to +105 °C operation, qualified per AEC-Q100 for under-hood and cabin electronics. |
Applications
| Portable pH Meter | Digital Weight Scale |
|---|---|
|
Use Scenario: Amplifying mV-level output from glass pH electrode in handheld field meter with CR2032 battery. IC Role / Device Role / Timing Role: Precision DC-coupled buffer and gain stage with ultra-low input current to prevent electrode polarization. Use Value: 1 pA input bias avoids >50 mV measurement drift over 10 minutes; rail-to-rail output drives 12-bit SAR ADC directly. |
Use Scenario: Conditioning bridge output from strain-gauge load cell in battery-powered kitchen scale. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end with low-noise, low-drift gain setting. Use Value: 2 mV max offset contributes <0.08% FS error at 2.5 V span; 20 μA supply current enables >5-year battery life. |
| Smoke Detector Signal Chain | Automotive Cabin Temperature Sensor |
|
Use Scenario: Amplifying weak current pulses from photoelectric smoke chamber in UL-certified residential detector. IC Role / Device Role / Timing Role: Transimpedance amplifier converting photocurrent to voltage with minimal dark-current error. Use Value: 1 pA input bias ensures <100 nA dark current contribution; 85 dB CMRR rejects 60 Hz EMI from AC-powered alarm circuitry. |
Use Scenario: Signal conditioning for NTC thermistor in automotive HVAC control module operating across −40 °C to +85 °C. IC Role / Device Role / Timing Role: Precision ratiometric amplifier referenced to MCU's internal ADC reference. Use Value: −40 °C to +105 °C rating ensures reliability; 3 μV/°C offset drift maintains ±0.5 °C accuracy over full range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher supply current (550 μA/amp), wider GBW (6.4 MHz), but higher offset (3.5 mV max). | Better for higher-speed sensor interfaces; unsuitable for multi-year battery life requirements. | Select when bandwidth >100 kHz is required and power budget allows >25× increase in quiescent current. |
| MAX4472ASA+ | Lower input bias (0.1 pA), lower noise (22 nV/√Hz), but narrower supply range (2.4–5.5 V) and no automotive qualification. | Preferred for ultra-high-Z lab instruments; not rated for automotive temperature or AEC-Q100. | Choose for benchtop pH meters or analytical equipment where ultimate input impedance matters more than environmental ruggedness. |
Compared with TLV2462IDR and MAX4472ASA+, TS932AID uniquely balances micropower consumption (20 μA), automotive temperature rating (−40 °C to +105 °C), rail-to-rail output, and 1 pA input bias-making it optimal for cost-sensitive, long-life, and harsh-environment embedded sensing.
Availability
TS932AID is available at Aetrix Electronics and suitable for portable medical devices, battery-powered industrial sensors, and automotive cabin electronics requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TS932AID 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 analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
The TS93x series was developed specifically for ultra-low-power, high-precision analog signal conditioning in space-constrained, battery-operated systems-emphasizing rail-to-rail operation, sub-1 pA input bias, and extended temperature reliability.
FAQ
What is the maximum operating supply voltage for TS932AID?
The absolute maximum supply voltage is 12 V, but the recommended operating range is 2.7 V to 10 V per the datasheet's Table 3. Operation above 10 V risks exceeding safe junction temperature and degrading long-term reliability, even if within absolute ratings.
Does TS932AID support rail-to-rail input as well as output?
No-TS932AID features rail-to-rail *output* swing only. Its common-mode input voltage range is specified as VCC− −0.2 V to VCC+ −1.5 V, meaning it cannot accept signals within 1.5 V of the positive rail. This limits use in true input/output rail-to-rail topologies without level shifting.
Is the TS932AID pinout compatible with other dual op-amps in SO-8 packages?
TS932AID follows the industry-standard dual op-amp SO-8 pinout (pin 1: −IN1, pin 2: +IN1, pin 3: OUT1, pin 4: V−, pin 5: V+, pin 6: OUT2, pin 7: +IN2, pin 8: −IN2), matching LM358, TL072, and MCP6022-enabling drop-in replacement where electrical specs align.
How does the TS932AID's 1 pA input bias current impact high-impedance sensor interfacing?
At 1 pA typical bias current, a 1 GΩ source impedance introduces only 1 mV of offset error-critical for pH electrodes (≥100 MΩ) and photodiode transimpedance stages. This eliminates the need for guard rings or active bias cancellation in most portable instrumentation designs.
TS932AID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.05V/µs
- Gain Bandwidth Product:
- 100 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 20µA (x2 Channels)
- Current - Output / Channel:
- 5 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TS932AID FAQ
1.How can I place an order for TS932AID through Aetrix?
Please submit a Request for Quotation (RFQ) for TS932AID 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 TS932AID reliable?
The price and inventory of TS932AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS932AID is usually 5 days.
3.What payment methods are accepted for TS932AID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS932AID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS932AID?
TS932AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS932AID 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 TS932AID?
For technical support, including TS932AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS932AID requirements.
6.How does Aetrix verify that TS932AID is sourced from the original manufacturer or authorized distributors?
All TS932AID 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 TS932AID meets industry standards.
7.What is the process for return or replacement of TS932AID?
All TS932AID units undergo pre-shipment inspection (PSI). If there is an issue with TS932AID, 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 TS932AID part is unused and in its original packaging.
Return procedure for TS932AID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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LM358DT
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