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STMicroelectronics TSV912AIST
- Part No.:
- TSV912AIST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSV912AIST.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:11,974
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Product details
Overview
TSV912AIST from STMicroelectronics is a dual rail-to-rail input/output operational amplifier in MiniSO8 package, designed for precision signal conditioning in low-voltage systems. It delivers 8 MHz gain-bandwidth, 4.5 V/µs slew rate, 1.5 mV max input offset voltage (A grade), 1 pA typical input bias current, and operates from 2.5 V to 5.5 V supply - enabling high-accuracy sensor interfacing in portable medical instrumentation.
For engineers reviewing the TSV912AIST datasheet, TSV912AIST pinout, TSV912AIST application, or TSV912AIST equivalent, key selection criteria include its A-grade offset voltage spec, rail-to-rail swing at 2.5 V supply, 35 mA output drive capability, and guaranteed unity-gain stability with capacitive loads up to 100 pF.
Technical Context
The TSV912AIST integrates two independent high-speed, low-power op-amp channels sharing a common 2.5–5.5 V supply. Its input stage uses complementary input pairs to achieve rail-to-rail common-mode range (VCC− − 0.1 V to VCC+ + 0.1 V) and ultra-low 1 pA input bias current. The output stage supports rail-to-rail swing with ±35 mA sourcing/sinking capability into 600 Ω loads.
Internally compensated for unity-gain stability, it achieves 45° phase margin driving 100 pF capacitive loads without external compensation. Its 8 MHz GBP and 4.5 V/µs slew rate are maintained across temperature (−40 °C to +125 °C) and supply voltages, with CMRR ≥ 60 dB and PSRR ≥ 70 dB over full operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 8 MHz - enables stable closed-loop operation up to ~100 kHz at G = 100 without peaking. |
| Input offset voltage (max) | 1.5 mV at 25 °C (A grade) - ensures ≤ 0.3% error in 0.5 V full-scale 12-bit ADC front-end. |
| Supply current per channel | 820 µA typ. at 2.5 V - allows dual-op-amp operation on coin-cell batteries for >1-year runtime in portable sensors. |
| Slew rate | 4.5 V/µs - supports clean 10 kHz sine wave output at 10 Vpp without distortion. |
| Input bias current | 1 pA typ. - minimizes voltage error across high-Z sources (e.g., pH electrodes, piezoelectric sensors). |
| Output drive | ±35 mA - directly drives 10 kΩ resistive loads or 100 pF capacitive loads without external buffering. |
| Common-mode range | VCC− − 0.1 V to VCC+ + 0.1 V - accepts inputs down to ground and up to supply rail in single-supply configurations. |
Pinout & Package
TSV912AIST is housed in a 3.0 mm × 3.0 mm MiniSO8 package (8-pin, 0.65 mm pitch), RoHS-compliant and ECOPACK® certified. The exposed pad is not internally connected and may be left floating or tied to VCC− for thermal enhancement.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Inverting amplifier output - rail-to-rail swing, capable of ±35 mA drive into 600 Ω. |
| 2 | IN1− | Inverting input - high-impedance node (1 pA bias), matched to IN1+ for low offset. |
| 3 | IN1+ | Non-inverting input - rail-to-rail common-mode range supports direct connection to grounded sensors. |
| 4 | VCC+ | Positive supply rail - accepts 2.5 V to 5.5 V; requires local 10 nF decoupling per datasheet layout guidance. |
| 5 | VCC− | Negative supply rail - typically ground in single-supply use; connects to exposed pad if used thermally. |
| 6 | OUT2 | Second amplifier output - electrically isolated from OUT1; identical AC/DC specs. |
| 7 | IN2− | Second inverting input - independent channel with same bias and offset characteristics as IN1−. |
| 8 | IN2+ | Second non-inverting input - enables dual-channel signal conditioning (e.g., differential pair + reference buffer). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in 2.5 V single-supply systems - no headroom loss at input or output. |
| Unity-gain stable | Eliminates need for external compensation components - simplifies PCB layout and reduces BOM count. |
| Low input offset drift | 5 µV/°C - maintains < 0.5 mV total offset shift over −40 °C to +85 °C ambient, critical for uncalibrated medical sensors. |
| ESD protection | ≥ 5 kV HBM - withstands handling in production environments without additional protection circuitry. |
| Latch-up immunity | 200 mA - prevents destructive failure during input overvoltage transients beyond absolute maximum ratings. |
Applications
| Portable ECG Front-End | Battery-Powered Gas Sensor Signal Chain |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in handheld ECG monitors. IC Role / Device Role / Timing Role: Dual-channel configured as instrumentation amplifier first stage (IN1+/IN1−) and reference buffer (IN2+/IN2−) with rail-to-rail output swing. Use Value: 1 pA input bias avoids electrode polarization errors; 1.5 mV max Vos ensures baseline stability without frequent auto-zeroing. |
Use Scenario: Conditioning output from electrochemical gas sensors (e.g., CO, NO₂) powered by Li-ion battery (3.0–4.2 V). IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) for current-mode sensor output, followed by active low-pass filtering. Use Value: 8 MHz GBP supports 100 Hz filter cutoff with < 0.1 dB passband ripple; 820 µA/channel extends battery life beyond 18 months. |
| Automotive Cabin Air Quality Module | Industrial Handheld Multimeter Input Stage |
Use Scenario: Signal conditioning for NDIR CO₂ and VOC sensors in automotive HVAC control units operating at −40 °C to +105 °C. IC Role / Device Role / Timing Role: Dual op-amp implementing ratiometric reference scaling and sensor output amplification with temperature compensation. Use Value: Guaranteed operation to 125 °C junction temperature; 5 µV/°C Vos drift ensures < 1% measurement error across full cabin temperature range. |
Use Scenario: High-impedance voltage buffer and programmable gain stage in 4½-digit handheld DMMs using 3.3 V supply. IC Role / Device Role / Timing Role: First-stage buffer isolating 10 MΩ input impedance from internal ADC driver; second channel used for autoranging control. Use Value: Rail-to-rail input accepts 0–3.3 V input range directly; 1.5 mV Vos contributes < 0.05% of 3.3 V full scale, meeting Class II accuracy requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV912IDT | Standard grade (7.5 mV max Vos vs. 1.5 mV); otherwise identical specs and pinout. | Suitable for cost-sensitive industrial controls where < 0.2% gain error is acceptable. | Select when offset-critical calibration is performed in firmware or external hardware. |
| MCP6022-E/SN | Lower GBP (10 MHz) but higher quiescent current (1 mA/ch); 2.7 V min supply; no A-grade option. | Better for higher-frequency filtering (>100 kHz), less suitable for sub-2.7 V battery operation. | Choose only if design requires >8 MHz bandwidth and can tolerate higher power or wider Vos distribution. |
Compared with TSV912IDT, the TSV912AIST provides tighter offset control essential for uncalibrated analog front-ends; versus MCP6022-E/SN, it offers superior low-voltage operation and lower power at the expense of minor bandwidth trade-off - making it optimal for precision, battery-constrained applications.
Availability
TSV912AIST is available at Aetrix Electronics and suitable for portable medical instrumentation, battery-powered gas sensing, automotive cabin air quality modules, and industrial handheld multimeters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV912AIST 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 TSV91x series belongs to ST's precision low-power op-amp product line, engineered specifically for rail-to-rail performance in space- and energy-constrained applications such as wearable health monitors and IoT edge nodes.
FAQ
What is the maximum capacitive load the TSV912AIST can drive without external compensation?
The TSV912AIST is unity-gain stable and can drive up to 100 pF capacitive loads directly in voltage-follower configuration without oscillation, as verified in the datasheet's Figure 10 and Section 5.1. For loads exceeding 100 pF, a small series resistor (e.g., 10–50 Ω) between output and load is recommended to maintain phase margin above 45°.
Does the MiniSO8 package's exposed pad require connection?
No - the exposed pad of the TSV912AIST's MiniSO8 package is not internally connected, as explicitly stated in the datasheet (Section 6.2, Note). It may be left floating or soldered to VCC− (ground) solely for improved thermal dissipation; no electrical function is assigned to it.
How does the A-grade offset voltage specification impact system-level accuracy?
The A-grade guarantees ≤1.5 mV input offset voltage at 25 °C and ≤3 mV over −40 °C to +125 °C. In a 3.3 V full-scale 12-bit system (LSB = 0.8 mV), this contributes ≤1.9 LSB error before trimming - enabling high-accuracy measurements without factory calibration in many portable medical and sensor applications.
Can the TSV912AIST operate reliably from a single 2.5 V lithium thionyl chloride cell?
Yes - the TSV912AIST is fully specified from 2.5 V to 5.5 V supply, with all key parameters (GBP, slew rate, output drive, CMRR) validated at 2.5 V in Tables 3–5. Its 820 µA typical supply current per channel enables multi-year operation from primary cells, and rail-to-rail I/O ensures full utilization of the limited 2.5 V headroom.
TSV912AIST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 4.5V/µs
- Gain Bandwidth Product:
- 8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 780µA (x2 Channels)
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MiniSO
TSV912AIST FAQ
1.How can I place an order for TSV912AIST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV912AIST 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 TSV912AIST reliable?
The price and inventory of TSV912AIST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV912AIST is usually 5 days.
3.What payment methods are accepted for TSV912AIST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV912AIST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV912AIST?
TSV912AIST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV912AIST 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 TSV912AIST?
For technical support, including TSV912AIST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV912AIST requirements.
6.How does Aetrix verify that TSV912AIST is sourced from the original manufacturer or authorized distributors?
All TSV912AIST 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 TSV912AIST meets industry standards.
7.What is the process for return or replacement of TSV912AIST?
All TSV912AIST units undergo pre-shipment inspection (PSI). If there is an issue with TSV912AIST, 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 TSV912AIST part is unused and in its original packaging.
Return procedure for TSV912AIST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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