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STMicroelectronics TSV854IQ4T
- Part No.:
- TSV854IQ4T
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TSV854IQ4T.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,876
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Product details
Overview
TSV854IQ4T from STMicroelectronics is a quad-channel, rail-to-rail output operational amplifier with shutdown capability, designed for low-power signal conditioning in automotive and portable systems. It delivers 1.3 MHz gain bandwidth, 180 µA per channel supply current at 5 V, 0.8 mV max input offset voltage at 25 °C, and operates across -40 °C to +125 °C - enabling precision sensor interfacing in engine control units and battery-powered medical monitors.
For engineers reviewing the TSV854IQ4T datasheet, TSV854IQ4T pinout, TSV854IQ4T application, or TSV854IQ4T equivalent, key selection criteria include its shutdown-enabled power efficiency (50 nA max), extended temperature stability, rail-to-rail output swing under 2 kΩ load, and SO14/TSSOP14 package compatibility with space-constrained PCB layouts.
Technical Context
The TSV854IQ4T implements four independent high-accuracy op-amp channels in a single monolithic die, each featuring an input common-mode range extending from VCC− − 0.2 V to VCC+ − 1 V and rail-to-rail output capable of sourcing/sinking ≥35 mA (at 5 V, 25 °C). Its internal architecture supports stable unity-gain operation with 60° phase margin and 10 dB gain margin up to 200 pF capacitive load.
Each channel integrates a dedicated SHDN pin (pins 1, 4, 10, 13) enabling independent channel-level power gating. Shutdown mode places the output in high-impedance state and reduces total quiescent current to ≤50 nA per channel, with turn-on/turn-off times of 300 ns and 20 ns respectively - critical for dynamic power management in duty-cycled sensor front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.3 V to 5.5 V - enables direct interface with Li-ion battery (3.0–4.2 V) and 3.3 V/5 V logic domains without level-shifting. |
| Gain Bandwidth Product | 1.3 MHz - supports stable closed-loop amplification up to ~100 kHz with gain ≥10 in active filtering applications. |
| Input Offset Voltage | 0.8 mV max at 25 °C - ensures ≤0.4% error in 200 mV full-scale sensor signal amplification without trimming. |
| Supply Current per Channel | 180 µA max at 5 V, 25 °C - allows four-channel operation within 720 µA total, suitable for multi-sensor nodes on coin-cell batteries. |
| Shutdown Current | 50 nA max per channel - reduces system standby power by >99.9% versus active mode, extending shelf life in always-on devices. |
| Rail-to-Rail Output Swing | ≤100 mV from rails into 10 kΩ - preserves dynamic range when driving ADC inputs directly, minimizing headroom loss. |
| Operating Temperature | -40 °C to +125 °C - meets AEC-Q100 Grade 1 requirements for under-hood automotive signal conditioning. |
Pinout & Package
TSV854IQ4T is housed in a 14-lead SOIC (SO14) package with exposed pad option, measuring 8.65 mm × 3.9 mm × 1.75 mm (max). Pin numbering follows standard SO14 top-view convention with notch orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SHDN1 | Active-high shutdown control for Channel 1 - tie to VCC+ to enable, VCC− to disable and place output in Hi-Z. |
| 2 | IN1− | Inverting input for Channel 1 - differential pair node with 27–60 nA bias current and 70–75 dB CMRR. |
| 3 | IN1+ | Non-inverting input for Channel 1 - supports common-mode range down to VCC− − 0.2 V for ground-referenced sensors. |
| 4 | SHDN2 | Active-high shutdown control for Channel 2 - independently gated; no cross-talk with other channels. |
| 5 | VCC− | Negative supply rail - shared reference for all four amplifiers and shutdown logic; must be decoupled with 10 nF capacitor. |
| 6 | OUT1 | Channel 1 output - rail-to-rail capable, drives ≥35 mA sink/source at 5 V, enters Hi-Z during SHDN assertion. |
| 7 | OUT2 | Channel 2 output - electrically isolated from OUT1; same drive strength and output impedance as OUT1. |
| 8 | VCC+ | Positive supply rail - accepts 2.3–5.5 V; supplies internal biasing and output stage; requires local 10 nF decoupling. |
| 9 | IN2+ | Non-inverting input for Channel 2 - identical electrical characteristics to IN1+, enabling matched dual-channel designs. |
| 10 | SHDN3 | Active-high shutdown control for Channel 3 - enables selective activation of only required channels in multi-stage filters. |
| 11 | IN2− | Inverting input for Channel 2 - shares same offset drift (1 µV/°C) and noise profile (30 nV/√Hz @ 1 kHz) as IN1−. |
| 12 | OUT3 | Channel 3 output - maintains 0.7 V/µs slew rate and 1.3 MHz GBP even under 200 pF capacitive loading. |
| 13 | SHDN4 | Active-high shutdown control for Channel 4 - allows full quad-channel disable with single external logic signal if tied together. |
| 14 | OUT4 | Channel 4 output - fully specified for THD+N ≤0.002% at 1 kHz, supporting high-fidelity analog signal paths. |
Key Features
| Feature | Design Value |
|---|---|
| Low-power shutdown mode | Reduces per-channel supply current to ≤50 nA - extends battery life in intermittent-sampling IoT edge nodes by orders of magnitude. |
| Rail-to-rail output stage | Delivers <100 mV saturation voltage into 10 kΩ load - maximizes usable ADC input range without external level-shifting circuitry. |
| Automotive-grade qualification | Qualified per AEC-Q100 Grade 1 - guarantees parametric performance and reliability over -40 °C to +125 °C ambient for engine bay use. |
| Enhanced input offset voltage | 0.8 mV max at 25 °C and 2 mV max over full temperature range - eliminates need for factory calibration in cost-sensitive industrial sensors. |
| High ESD tolerance | 4 kV HBM (non-SHDN pins), 3.5 kV HBM (SHDN pins) - withstands handling and board assembly without additional protection components. |
Applications
| Engine Control Unit Signal Conditioning | Portable ECG Front-End |
|---|---|
|
Use Scenario: Amplifying low-amplitude thermistor and oxygen sensor signals in automotive ECUs subject to wide thermal cycling and electrical noise. IC Role / Device Role / Timing Role: Quad-channel TSV854IQ4T provides simultaneous gain, filtering, and level-shifting for four independent sensor channels with individual shutdown control. Use Value: 125 °C operating limit and 70 dB CMRR ensure stable DC accuracy despite engine compartment EMI and thermal gradients, reducing calibration drift. |
Use Scenario: Biopotential signal amplification in handheld ECG devices powered by single-cell lithium polymer batteries. IC Role / Device Role / Timing Role: One channel buffers electrode inputs, two implement active anti-aliasing filters, fourth drives ADC reference with rail-to-rail swing. Use Value: 180 µA/channel quiescent current enables >100-hour battery life; shutdown cuts idle power to nanoampere levels between measurements. |
| Industrial Temperature Transmitter | Automotive Cabin Air Quality Sensor |
|
Use Scenario: Converting 4–20 mA loop current from RTD-based temperature probes into calibrated 0–5 V output for PLC analog inputs. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end using two TSV854IQ4T channels in difference configuration, third for excitation current regulation. Use Value: 0.8 mV max Vos and 1 µV/°C drift maintain ±0.1 °C measurement accuracy over -25 °C to +70 °C industrial environments. |
Use Scenario: Signal conditioning for NDIR CO₂ and VOC sensors in automotive HVAC modules requiring low standby power and high EMC immunity. IC Role / Device Role / Timing Role: Four-channel device configures one amplifier for photodiode transimpedance, two for filter stages, one for analog output buffering. Use Value: 4 kV HBM ESD rating and 125 °C operation eliminate external TVS diodes and thermal derating, simplifying BOM and layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp with shutdown applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV854AIDT | No shutdown pins; enhanced 0.8 mV max Vos over full -40 °C to +125 °C range (vs. 2 mV for TSV854IQ4T). | Suitable where continuous operation is required and PCB space is constrained (same SO14 footprint but no SHDN routing). | Select when absolute offset stability across temperature outweighs need for dynamic power gating. |
| LMV324QDRQ1 | Higher 250 µA/channel supply current; no shutdown function; 3 mV max Vos at 25 °C; qualified AEC-Q100 Grade 1. | Lacks per-channel shutdown, limiting ultra-low-power duty-cycled use cases; wider supply range (2.7–5.5 V). | Choose when legacy LMV324 pin compatibility is mandatory and 180 µA vs. 250 µA quiescent current is not critical. |
Compared with TSV854AIDT, TSV854IQ4T trades slightly higher offset drift for independent channel shutdown - essential for energy harvesting sensors. Versus LMV324QDRQ1, it delivers 28% lower active current and integrated power gating, enabling new classes of automotive micro-power monitoring systems.
Availability
TSV854IQ4T is available at Aetrix Electronics and suitable for automotive signal conditioning, portable medical instrumentation, industrial temperature transmitters, and battery-powered environmental sensors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV854IQ4T 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, sensors, and analog components for automotive, industrial, and consumer markets.
The TSV85x series belongs to ST's precision analog portfolio, engineered specifically for low-voltage, low-power signal conditioning in harsh environments - emphasizing rail-to-rail performance, automotive qualification, and nanoampere shutdown capability.
FAQ
What is the maximum capacitive load the TSV854IQ4T can drive while maintaining stability?
The TSV854IQ4T maintains ≥60° phase margin and ≥10 dB gain margin with up to 200 pF capacitive load at unity gain, as verified in Figure 9 and Figure 11 of the datasheet. For loads exceeding 200 pF, external isolation resistors (e.g., 10–100 Ω in series with the output) are recommended to prevent peaking or oscillation, especially in high-impedance sensor buffer configurations.
Can the SHDN pins be tied together and controlled by a single microcontroller GPIO?
Yes - all four SHDN pins (1, 4, 10, 13) are electrically isolated but share identical logic thresholds (VIH = VCC− + 0.5 V, VIL = 0.5 V), allowing them to be paralleled and driven by one GPIO. This configuration enables synchronized shutdown of all four channels, reducing control complexity in systems where channel independence is unnecessary.
Does the TSV854IQ4T require external compensation for unity-gain stable operation?
No - the TSV854IQ4T is internally compensated for unity-gain stability across its full operating range (2.3–5.5 V, -40 °C to +125 °C), as confirmed by phase margin ≥60° and gain margin ≥10 dB in Figure 8–11. No external compensation components are needed for standard voltage-follower or inverting amplifier configurations with resistive feedback.
How does the input common-mode range support ground-referenced sensor interfaces?
The input common-mode range extends from VCC− − 0.2 V to VCC+ − 1 V, permitting direct connection of single-ended sensors referenced to system ground (VCC−) without level-shifting. This enables accurate amplification of 0–2.5 V thermistor or bridge outputs using a single 3.3 V supply, eliminating biasing resistors and associated errors.
TSV854IQ4T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.7V/µs
- Gain Bandwidth Product:
- 1.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 27 nA
- Voltage - Input Offset:
- 4 mV
- Current - Supply:
- 130µA (x4 Channels)
- Current - Output / Channel:
- 70 mA
- Voltage - Supply Span (Min):
- 2.3 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (3x3)
TSV854IQ4T FAQ
1.How can I place an order for TSV854IQ4T through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV854IQ4T 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 TSV854IQ4T reliable?
The price and inventory of TSV854IQ4T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV854IQ4T is usually 5 days.
3.What payment methods are accepted for TSV854IQ4T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV854IQ4T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV854IQ4T?
TSV854IQ4T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV854IQ4T 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 TSV854IQ4T?
For technical support, including TSV854IQ4T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV854IQ4T requirements.
6.How does Aetrix verify that TSV854IQ4T is sourced from the original manufacturer or authorized distributors?
All TSV854IQ4T 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 TSV854IQ4T meets industry standards.
7.What is the process for return or replacement of TSV854IQ4T?
All TSV854IQ4T units undergo pre-shipment inspection (PSI). If there is an issue with TSV854IQ4T, 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 TSV854IQ4T part is unused and in its original packaging.
Return procedure for TSV854IQ4T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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