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STMicroelectronics TSV791IYLT
- Part No.:
- TSV791IYLT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TSV791IYLT.pdf
- Description:
- HIGH BANDWIDTH (50MHZ) LOW OFFSE
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
TSV791IYLT from STMicroelectronics is a single, rail-to-rail input/output operational amplifier optimized for high-bandwidth precision signal conditioning. It delivers 50 MHz gain bandwidth, 30 V/µs slew rate, and 50 µV typical input offset voltage (200 µV max), enabling accurate amplification of low-amplitude signals in automotive current sensing and photodiode transimpedance applications. Operates from 2.2 V to 5.5 V over –40 °C to +125 °C.
For engineers reviewing the TSV791IYLT datasheet, TSV791IYLT pinout, TSV791IYLT application, or TSV791IYLT equivalent, key selection criteria include its unity-gain stability, 6.5 nV/√Hz input voltage noise at 10 kHz, 1 pA typical input bias current, and SOT23-5 package compatibility with space-constrained PCB layouts in automotive and solar power management systems.
Technical Context
The TSV791IYLT employs a dual-input-stage architecture supporting rail-to-rail common-mode input range (VCC– – 0.1 V to VCC+ + 0.1 V), with optimal precision maintained below VCC+ – 2 V to avoid CMRR degradation near the input pair transition point. Its 53° phase margin ensures stable unity-gain operation into 22 pF loads.
It achieves 110 dB open-loop gain (typ.) and 100 dB CMRR (min.) at 25 °C, with supply voltage rejection ratio of 90 dB min. across 2.2–5.5 V. Input voltage noise rises to 15 nV/√Hz at 2.2 V supply, confirming performance scaling with rail voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 50 MHz - enables stable closed-loop operation up to 5 MHz with gain ≥10, suitable for fast A/D buffer and current-sense loop response. |
| Slew Rate | 30 V/µs - supports full-scale 10 V output transitions in ≤333 ns, critical for photodiode pulse amplification without distortion. |
| Input Offset Voltage | ±200 µV max - limits DC error to <0.002% of 10 V full scale, essential for sub-millivolt-level current-sense accuracy. |
| Input Bias Current | 1 pA typ. - minimizes voltage error across high-impedance sources (e.g., >100 MΩ photodiodes), preserving signal integrity. |
| Supply Voltage Range | 2.2 V to 5.5 V - allows direct interface with Li-ion battery (3.0–4.2 V), automotive 3.3 V/5 V rails, and energy-harvesting solar regulators. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive electronics and industrial motor control environments. |
| Input Voltage Noise | 6.5 nV/√Hz @ 10 kHz - defines minimum detectable AC signal amplitude in high-frequency sensor interfaces. |
Pinout & Package
SOT23-5 package: compact 2.9 mm × 1.6 mm surface-mount outline with exposed pad (not electrically connected), rated for 250 °C/W junction-to-ambient thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT | Amplifier output | Capable of sourcing/sinking ≥50 mA; rail-to-rail swing supports full dynamic range utilization into 10 kΩ loads. |
| 2 VCC– | Negative supply terminal | Reference node for all internal biasing; must be connected to system ground or negative rail in dual-supply configurations. |
| 3 IN+ | Non-inverting input | Differential input stage accepts signals down to VCC– – 0.1 V; low 1.6 pF common-mode capacitance reduces RF coupling. |
| 4 IN– | Inverting input | Matches IN+ in offset and noise; used for feedback in transimpedance or differential configurations. |
| 5 VCC+ | Positive supply terminal | Accepts up to 5.5 V; internal ESD protection rated to 4 kV HBM per AEC-Q100-002 for automotive use. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full 0–5 V output swing on 5 V supply and input operation down to ground, eliminating level-shifting circuitry in single-supply systems. |
| Unity-gain stability | Guaranteed with 22 pF capacitive load and 10 kΩ feedback resistor, simplifying A/D converter input buffering without external compensation. |
| Low 1 pA input bias current | Reduces voltage error to <10 µV across 10 MΩ source impedance, critical for photodiode and high-Z sensor front-ends. |
| Automotive grade option | Qualified per AEC-Q100 Grade 1 (–40 °C to +125 °C), including 4 kV HBM ESD rating and extended lifetime reliability testing. |
| EMI robustness | EMIRR >60 dB measured from 400 MHz–2.4 GHz; mitigates RF rectification-induced offset shifts in noisy automotive environments. |
Applications
| High-Side Current Sensing | Photodiode Transimpedance Amplification |
|---|---|
|
Use Scenario: Monitoring battery pack charge/discharge current in EV BMS using shunt resistor placed between battery positive terminal and load. IC Role / Device Role / Timing Role: High-side current sense amplifier with VIN+ referenced to battery voltage and VIN– connected to shunt top; provides isolated, low-drift output proportional to current. Use Value: 50 µV offset and 1 pA bias current minimize measurement error at µA–mA levels; rail-to-rail output drives ADC directly without level shift. |
Use Scenario: Converting weak photocurrent (nA–µA) from UV/visible photodiode into measurable voltage in portable spectrometer. IC Role / Device Role / Timing Role: Transimpedance amplifier with photodiode cathode tied to IN– and feedback resistor from OUT to IN–; IN+ grounded. Use Value: 6.5 nV/√Hz noise density and 50 MHz bandwidth preserve signal fidelity for fast optical pulses; low bias current prevents diode leakage corruption. |
| A/D Converter Input Buffer | Automotive Power Management |
|
Use Scenario: Driving SAR ADC input in industrial PLC analog input module requiring fast settling and low THD+N. IC Role / Device Role / Timing Role: Unity-gain follower placed between signal conditioner and ADC; isolates ADC sampling kickback from upstream stages. Use Value: 30 V/µs slew rate and 53° phase margin ensure <1 LSB settling in <500 ns; 22 pF load tolerance eliminates need for external isolation capacitor. |
Use Scenario: Regulating 12 V battery-derived 3.3 V rail for infotainment MCU in passenger compartment, monitoring LDO output current for fault detection. IC Role / Device Role / Timing Role: Low-side current sense amplifier measuring LDO ground-return current; output scaled for MCU ADC input. Use Value: –40 °C to +125 °C operation and AEC-Q100 qualification ensure reliability in temperature-cycled cabin environments; 200 µV max offset maintains ±0.5% current accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-bandwidth precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSZ181 | Zero-drift architecture, 3 MHz GBW, 1.8 µV max offset, 170 µA supply current | Better DC accuracy but insufficient bandwidth for >100 kHz current sensing or photodiode pulse response | Select TSZ181 only when ultra-low drift (<1 µV/°C) dominates over speed; not suitable for TSV791IYLT's 50 MHz use cases. |
| TSB7192 | 36 V supply, 20 MHz GBW, 3 mV max offset, 3.5 mA supply current | Higher voltage capability but 10× higher offset and 6× higher noise (11 nV/√Hz) limit low-level signal fidelity | Choose TSB7192 only for industrial 24 V sensor interfaces where rail voltage exceeds 5.5 V; unsuitable for battery-powered precision apps. |
Compared with TSZ181 and TSB7192, the TSV791IYLT uniquely balances 50 MHz bandwidth, 200 µV offset, and 1 pA bias current within a 5.5 V rail-making it the only viable option for automotive-grade, high-speed, low-noise current sensing and photodiode amplification where both speed and DC precision are simultaneously required.
Availability
TSV791IYLT is available at Aetrix Electronics and suitable for automotive BMS current monitoring, portable optical sensor front-ends, and industrial ADC input buffering requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSV791IYLT 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 TSV79x series belongs to ST's precision high-speed op amp product line, engineered specifically for automotive-qualified, low-noise signal conditioning in current sensing, photodiode amplification, and data acquisition systems operating from 2.2 V to 5.5 V.
FAQ
Is the TSV791IYLT pin-compatible with other SOT23-5 op amps?
No-TSV791IYLT uses a non-standard pinout: Pin 1 = OUT, Pin 2 = VCC–, Pin 3 = IN+, Pin 4 = IN–, Pin 5 = VCC+. This differs from industry-standard SOT23-5 op amps (e.g., MCP6001, LMV321) where Pin 2 is typically IN– and Pin 3 is IN+. Direct replacement requires PCB layout revision.
Can the TSV791IYLT drive capacitive loads greater than 22 pF?
Yes, but with trade-offs: the datasheet guarantees stability with 22 pF, and characterization shows usable operation up to 1 nF with reduced phase margin (≥45°). For >100 pF loads, add a 10–50 Ω series resistor between OUT and the capacitor to isolate the op amp output stage and prevent peaking or oscillation.
What is the maximum output current capability of the TSV791IYLT?
At 25 °C and 5 V supply, the TSV791IYLT can source 50–60 mA and sink 60–70 mA before clipping. At –40 °C to +125 °C, guaranteed output current drops to ≥35 mA (both directions). Continuous operation above 20 mA requires attention to power dissipation: in SOT23-5, >100 mW total dissipation risks exceeding 125 °C junction temperature.
Does the TSV791IYLT require external compensation for unity-gain operation?
No-TSV791IYLT is internally compensated for unity-gain stability. It remains stable with 22 pF capacitive load and 10 kΩ feedback resistor. No external compensation capacitor is needed for standard voltage-follower or inverting amplifier configurations, simplifying design and reducing BOM count.
TSV791IYLT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 30V/µs
- Gain Bandwidth Product:
- 50 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 5.5mA
- Current - Output / Channel:
- 70 mA
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TSV791IYLT FAQ
1.How can I place an order for TSV791IYLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV791IYLT 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 TSV791IYLT reliable?
The price and inventory of TSV791IYLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV791IYLT is usually 5 days.
3.What payment methods are accepted for TSV791IYLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV791IYLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV791IYLT?
TSV791IYLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV791IYLT 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 TSV791IYLT?
For technical support, including TSV791IYLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV791IYLT requirements.
6.How does Aetrix verify that TSV791IYLT is sourced from the original manufacturer or authorized distributors?
All TSV791IYLT 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 TSV791IYLT meets industry standards.
7.What is the process for return or replacement of TSV791IYLT?
All TSV791IYLT units undergo pre-shipment inspection (PSI). If there is an issue with TSV791IYLT, 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 TSV791IYLT part is unused and in its original packaging.
Return procedure for TSV791IYLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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