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STMicroelectronics TSV612IST
- Part No.:
- TSV612IST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSV612IST.pdf
- Description:
- IC CMOS 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:3,912
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Product details
Overview
TSV612IST from STMicroelectronics is a dual rail-to-rail input/output CMOS operational amplifier optimized for ultra-low-power, low-voltage sensor signal conditioning. It delivers 120 kHz gain bandwidth, 10 µA supply current per channel at 5 V, and operates from 1.5 to 5.5 V - enabling use in battery-powered smoke detectors and portable medical instrumentation.
For engineers reviewing the TSV612IST datasheet, TSV612IST pinout, TSV612IST application, or TSV612IST equivalent, key selection criteria include its rail-to-rail I/O swing, 1 pA typical input bias current, -40 to 85 °C industrial temperature range, and MiniSO-8 package compatibility with space-constrained PCB layouts.
Technical Context
The TSV612IST employs complementary PMOS/NMOS input stages to achieve rail-to-rail input common-mode range (VCC− − 0.1 V to VCC+ + 0.1 V) without phase reversal. Its output stage drives within 35 mV of both rails under 10 kΩ load, supporting full dynamic range in single-supply configurations.
Internally compensated for unity-gain stability, it features 62° phase margin and 10 dB gain margin at 5 V, with slew rate of 0.04 V/μs and 105 nV/√Hz input voltage noise at 1 kHz - balancing precision, speed, and power for DC-coupled sensor front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.5 to 5.5 V - enables direct integration with Li-ion, coin-cell, and 3.3 V logic systems without LDOs. |
| Supply Current per Channel | 10.5 µA typ at 5 V - extends battery life beyond 10 years in 10 µA sleep-mode sensor nodes. |
| Gain Bandwidth Product | 120 kHz typ - supports anti-aliasing and low-frequency active filtering up to ~10 kHz. |
| Input Bias Current | 1 pA typ - preserves signal integrity in high-impedance pH, thermopile, or photodiode interfaces. |
| Input Offset Voltage | 0.8 mV max (A version), 2 mV max (standard) - ensures <0.1% error in 1 V full-scale medical sensor outputs. |
| Common-Mode Rejection | 80 dB min at 5 V - rejects power supply ripple and EMI in noisy industrial environments. |
| Output Swing | Within 35 mV of rails at 10 kΩ - maximizes ADC utilization in 12-bit+ single-supply data acquisition. |
Pinout & Package
TSV612IST is housed in an 8-pin MiniSO-8 package (3.0 × 4.9 mm, 0.65 mm pitch), offering improved thermal performance (RthJA = 190 °C/W) and board area savings over standard SO-8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel 1) | Accepts differential feedback signals; supports precision inverting amplifier configurations. |
| 2 | Non-inverting Input (Channel 1) | High-impedance node for sensor reference or buffered signal routing. |
| 3 | Output (Channel 1) | Delivers rail-to-rail output swing into ≥10 kΩ loads; stable with ≤100 pF capacitive loads. |
| 4 | VCC− (Ground) | Power return path; requires local 10 nF decoupling to minimize PSRR degradation. |
| 5 | VCC+ (Supply) | Positive supply input; accepts 1.5–5.5 V; internal ESD protection rated to 4 kV HBM. |
| 6 | Inverting Input (Channel 2) | Independent second channel input; electrically isolated from Channel 1 for dual-sensor processing. |
| 7 | Non-inverting Input (Channel 2) | Enables simultaneous conditioning of two analog signals (e.g., differential thermocouple + ambient temp). |
| 8 | Output (Channel 2) | Second independent output; shares same supply rails but no crosstalk above 80 dB at DC. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal capture from 0 V to VCC in single-supply systems, eliminating level-shifting circuitry. |
| Ultra-low input bias current (1 pA typ) | Prevents loading errors in megohm-range sensor bridges and electrochemical transducers. |
| Unity-gain stable architecture | Permits direct use in voltage followers and active filters without external compensation components. |
| Low input offset drift (2 µV/°C) | Maintains calibration stability across -40 to 85 °C ambient, critical for unattended field deployments. |
| ECOPACK® compliant MiniSO-8 | Meets RoHS and halogen-free requirements while reducing PCB footprint by 40% vs. SO-8. |
Applications
| Smoke Detector Signal Chain | Portable ECG Front-End |
|---|---|
Use Scenario: Amplifying weak ionization chamber current (pA–nA) in battery-operated residential smoke alarms. IC Role / Device Role / Timing Role: First-stage transimpedance amplifier with ultra-low input bias current and rail-to-rail output to drive ADC reference. Use Value: Enables >5-year coin-cell operation while maintaining sub-100 nA detection threshold accuracy across temperature. | Use Scenario: Conditioning low-amplitude (0.5–2 mV), low-frequency (<100 Hz) biopotential signals from dry electrodes. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end: one channel for lead-I differential, second for right-leg drive feedback. Use Value: 1 pA input bias prevents electrode polarization drift; 120 kHz GBW supports 50/60 Hz notch filter implementation. |
| Industrial Proximity Sensor | Smart Thermostat Ambient Sensing |
Use Scenario: Amplifying millivolt-level output from inductive proximity sensors in factory automation panels. IC Role / Device Role / Timing Role: Single-supply non-inverting amplifier with adjustable gain (via external resistors) and EMI-hardened input stage. Use Value: 80 dB CMRR rejects 24 VDC supply noise; rail-to-rail output fully utilizes 12-bit SAR ADC input range. | Use Scenario: Buffering and filtering thermistor voltage divider outputs in energy-efficient HVAC controllers. IC Role / Device Role / Timing Role: Dual-channel voltage follower: one buffers thermistor network, second conditions humidity sensor output. Use Value: 10.5 µA/channel supply current minimizes self-heating error in thermistor measurement; 0.8 mV Vos ensures ±0.2 °C accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV612IDT | Same silicon die, packaged in standard SO-8 (5.0 × 4.0 mm); RthJA = 125 °C/W vs. 190 °C/W. | Better thermal dissipation in high-density boards; larger footprint limits ultra-compact designs. | Select when board layout allows SO-8 and thermal management prioritizes junction temperature over size. |
| MCP6022-E/SN | Higher supply current (100 µA/channel), wider GBW (1 MHz), but only rail-to-rail output (not input). | Supports higher-speed active filters but introduces input common-mode limitations near rails. | Choose when bandwidth >100 kHz is required and input voltage stays >0.3 V above ground. |
Compared with TSV612IDT, the TSV612IST trades 65 °C/W higher thermal resistance for 40% smaller footprint - ideal for wearables and smoke detectors. Against MCP6022-E/SN, it sacrifices bandwidth and supply current headroom to achieve 10× lower power and true rail-to-rail input capability essential for single-supply sensor biasing.
Availability
TSV612IST is available at Aetrix Electronics and suitable for battery-powered applications, portable medical devices, industrial sensor nodes, and smoke detection systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV612IST 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, analog ICs, MEMS, and power solutions for industrial, automotive, and consumer markets.
The TSV61x family targets ultra-low-power analog signal conditioning in resource-constrained environments - specifically engineered for battery longevity, single-supply operation, and precision sensing in safety-critical and portable applications.
FAQ
What is the maximum capacitive load the TSV612IST can drive without external compensation?
The TSV612IST is stable driving up to 100 pF capacitive loads in unity-gain buffer configuration, as verified in the datasheet's Figure 19 and application note AN4915. For loads exceeding 100 pF, a series resistor (10–100 Ω, value dependent on capacitance) must be added between the output pin and the load to maintain phase margin above 60°.
Does the TSV612IST support true rail-to-rail input at 1.5 V supply?
Yes - the input common-mode range extends from (VCC−) − 0.1 V to (VCC+) + 0.1 V across the full 1.5–5.5 V supply range, including at 1.5 V. This is achieved via complementary PMOS/NMOS input pairs, and the device guarantees no phase reversal even when inputs approach the rails, as confirmed in Section 3.2 of the datasheet.
How does the input offset voltage specification differ between TSV612IST and TSV612AIST?
The "A" suffix denotes the precision grade: TSV612AIST specifies max Vos = 0.8 mV (vs. 2 mV for standard TSV612IST) and tighter ∆Vos/∆T = 2 µV/°C. Both share identical pinout, package, and AC specs - the A-version is selected when absolute DC accuracy is critical, such as in calibrated medical sensor outputs.
Can the TSV612IST operate reliably at -40 °C with 1.5 V supply?
Yes - the datasheet guarantees full electrical performance (including GBP, Vos, CMRR, and output swing) across -40 to 85 °C at all supported supply voltages, including 1.5 V. Characterization curves in Figures 2–3 and Table 2 explicitly validate Isink/Isource, VOH/VOL, and ICC down to -40 °C at VCC = 1.5 V.
TSV612IST 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:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.04V/µs
- Gain Bandwidth Product:
- 120 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 4 mV
- Current - Supply:
- 10.5µA
- Current - Output / Channel:
- 63 mA
- Voltage - Supply Span (Min):
- 1.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MiniSO
TSV612IST FAQ
1.How can I place an order for TSV612IST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV612IST 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 TSV612IST reliable?
The price and inventory of TSV612IST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV612IST is usually 5 days.
3.What payment methods are accepted for TSV612IST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV612IST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV612IST?
TSV612IST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV612IST 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 TSV612IST?
For technical support, including TSV612IST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV612IST requirements.
6.How does Aetrix verify that TSV612IST is sourced from the original manufacturer or authorized distributors?
All TSV612IST 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 TSV612IST meets industry standards.
7.What is the process for return or replacement of TSV612IST?
All TSV612IST units undergo pre-shipment inspection (PSI). If there is an issue with TSV612IST, 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 TSV612IST part is unused and in its original packaging.
Return procedure for TSV612IST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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