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STMicroelectronics TSV7721ILT
- Part No.:
- TSV7721ILT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TSV7721ILT.pdf
- Description:
- HIGH BANDWIDTH (22MHZ) LOW OFFSE
- Quantity:
- Payment:
- Shipping:
Inventory:5,571
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Product details
Overview
TSV7721ILT from STMicroelectronics is a single-channel, rail-to-rail output operational amplifier optimized for low-side current sensing and photodiode amplification. It delivers 22 MHz gain bandwidth, 50 µV typical input offset voltage (200 µV max), 2 pA typical input bias current, and operates from 1.8 V to 5.5 V supply - enabling high-accuracy, high-bandwidth signal conditioning in automotive sensor interfaces and precision analog front-ends.
For engineers reviewing the TSV7721ILT datasheet, TSV7721ILT pinout, TSV7721ILT application, or TSV7721ILT equivalent, this device is selected for its combination of ultra-low input bias current, ground-sensing input common-mode range (down to VCC−), and guaranteed stability with 47 pF capacitive loads - critical for A/D converter buffering and low-voltage sensor signal chains.
Technical Context
The TSV7721ILT uses a unity-gain-stable voltage-feedback architecture with 22 MHz GBW and 44° phase margin at 5 V, supporting fast settling (270 ns to 0.1%) and 11 V/µs slew rate. Its input stage is optimized for near-ground common-mode operation, with CMR ≥76 dB over −40°C to 125°C and input offset trimmed at 3.3 V/0 V Vicm.
It features rail-to-rail output swing, 1.7 mA supply current per channel at 5 V, and full specification across 1.8 V, 3.3 V, and 5.5 V supplies - making it suitable for battery-powered and automotive systems requiring stable DC accuracy and dynamic performance under wide voltage and temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 22 MHz - enables stable closed-loop operation up to ~10 MHz in unity-gain buffer configurations for high-speed sensor signals. |
| Input Offset Voltage | 50 µV typ., 200 µV max - ensures ≤0.1% error in 50 mV shunt-based current sensing at room temperature. |
| Input Bias Current | 2 pA typ. - allows direct connection to high-impedance sources like photodiodes without significant current-induced offset. |
| Supply Voltage Range | 1.8 V to 5.5 V - supports operation from Li-ion battery (3.0–3.7 V) to 5 V industrial rails without level-shifting. |
| Input Common-Mode Range | VCC− – 0.1 V to VCC+ – 1.1 V - enables true low-side current sensing with inputs referenced to ground. |
| Output Swing | Rail-to-rail - delivers full dynamic range into ADCs with 0–VCC input spans, minimizing headroom loss. |
| Quiescent Current | 1.7 mA at 5 V - balances speed and power for always-on sensor monitoring in automotive ECUs. |
Pinout & Package
SOT23-5 package: compact 2.9 mm × 1.6 mm surface-mount outline with exposed pad option (not electrically connected by default); thermally efficient for space-constrained PCB layouts in automotive modules and portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT | Amplifier output | Delivers rail-to-rail voltage swing; drives ADC input buffers or downstream comparators directly. |
| 2 VCC− | Negative supply | Ground reference for single-supply operation; common return for all internal circuitry and external feedback networks. |
| 3 IN+ | Non-inverting input | High-impedance node (2 pA bias) for precision reference or sensor signal routing; supports ground-referenced inputs. |
| 4 IN− | Inverting input | High-impedance node for feedback network connection; used in transimpedance or differential configurations. |
| 5 VCC+ | Positive supply | Accepts 1.8–5.5 V; powers internal biasing and output stage; decoupling capacitor required at pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable with 47 pF load | Eliminates need for external compensation when driving ADC inputs or long traces, reducing BOM count. |
| Input offset trimmed at 3.3 V / 0 V Vicm | Maximizes DC accuracy in low-side shunt applications where common-mode sits near ground. |
| EMI rejection ratio >60 dB (400 MHz–2.4 GHz) | Reduces RF rectification-induced offset drift in noisy automotive environments without added filtering. |
| Guaranteed operation from −40°C to 125°C | Validated for engine bay, transmission control, and ADAS sensor modules without derating. |
| Low input voltage noise density (7 nV/√Hz @ 10 kHz) | Preserves SNR in photodiode and strain gauge amplifiers where signal amplitudes are sub-mV. |
Applications
| Automotive Low-Side Current Sensing | Photodiode Signal Amplification |
|---|---|
Use Scenario: Monitoring battery discharge current in 12 V automotive subsystems using a 1 mΩ shunt resistor. IC Role / Device Role / Timing Role: Precision op-amp configured as differential amplifier to measure µV-level voltage drop across shunt with minimal error. Use Value: 200 µV max offset ensures <0.2% full-scale error at 100 A, meeting ISO 16750-2 transient immunity requirements. | Use Scenario: Converting photocurrent from a silicon PIN diode in ambient light sensing for automatic headlight control. IC Role / Device Role / Timing Role: Transimpedance amplifier converting 100 pA–10 nA photocurrent into 0.1–10 V output for microcontroller ADC sampling. Use Value: 2 pA input bias current prevents signal loss; 22 MHz GBW supports fast response to sudden illumination changes. |
| Strain Gauge Bridge Interface | Industrial Sensor Signal Conditioning |
Use Scenario: Amplifying mV-level Wheatstone bridge output from load cell in weigh scale systems. IC Role / Device Role / Timing Role: Instrumentation-grade amplifier with matched input impedance and high CMRR for rejecting bridge excitation noise. Use Value: 76 dB min CMRR at 25°C and rail-to-rail output ensure full utilization of 16-bit ADC range despite EMI and thermal drift. | Use Scenario: Buffering and level-shifting analog outputs from MEMS pressure sensors in HVAC controllers. IC Role / Device Role / Timing Role: Unity-gain buffer isolating sensor from PCB trace capacitance while maintaining DC accuracy and bandwidth. Use Value: 47 pF load drive capability eliminates external isolation resistors, preserving signal integrity up to 100 kHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV792IST | Higher 50 MHz GBW but 300 µV max Vio and 10 pA Iib; no automotive qualification. | Better for wideband active filters; less suitable for µV-level current sensing. | Select when bandwidth >30 MHz is required and offset tolerance >150 µV is acceptable. |
| TSB7192IPT | Wider 36 V supply range but 300 µV max Vio, 100 pA Iib, and 10 MHz GBW. | Designed for industrial 24 V loop-powered sensors; not optimized for low-voltage battery operation. | Choose for high-voltage industrial transmitters where 1.8 V operation is unnecessary. |
Compared with TSV7721ILT, TSV792IST trades DC precision for bandwidth, while TSB7192IPT sacrifices low-voltage operation and input bias performance for extended supply range - making TSV7721ILT uniquely balanced for automotive and portable low-side sensing where both accuracy and 1.8 V compatibility are mandatory.
Availability
TSV7721ILT is available at Aetrix Electronics and suitable for automotive current measurement, photodiode amplification, and strain gauge signal conditioning requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSV7721ILT 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, designing and manufacturing analog, MCU, power, and sensor solutions for automotive, industrial, and consumer markets.
The TSV772x series belongs to ST's precision op-amp product line, engineered specifically for high-accuracy, low-voltage sensor interface applications in harsh environments - emphasizing ground-sensing capability, low bias current, and automotive-grade reliability.
FAQ
What is the maximum capacitive load the TSV7721ILT can drive without external compensation?
The TSV7721ILT is fully specified and stable with 47 pF capacitive load in unity-gain configuration, as confirmed in DS13614 Rev 7. Driving larger loads (e.g., >100 pF) requires series output isolation (10–22 Ω) to suppress ringing, per Figure 35 and Section 5.6. No external compensation capacitor is needed for standard ADC input buffering.
Does the TSV7721ILT support true single-supply operation with inputs at ground potential?
Yes. The input common-mode range extends to VCC− – 0.1 V, allowing direct connection of IN+ or IN− to ground in low-side current sensing. This is validated across −40°C to 125°C and at all supply voltages (1.8 V to 5.5 V), with offset trimmed at 0 V Vicm for optimal accuracy.
How does the TSV7721ILT perform in automotive EMI environments?
It features measured EMIRR >60 dB from 400 MHz to 2.4 GHz on both inputs and output (Figure 46), minimizing RF-induced offset shifts. This is achieved via internal layout and process optimizations - no external ferrite beads or RC filters are required for compliance with ISO 11452-2/4 in typical ECU placements.
Is the SOT23-5 package of the TSV7721ILT thermally enhanced?
The SOT23-5 package has RthJA = 250°C/W (typical), as specified in Table 4. While it lacks an exposed thermal pad in standard configuration, its footprint supports optional solder paste under the pad for improved heat dissipation in high-ambient applications - verified in thermal characterization on page 5 of DS13614.
TSV7721ILT 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:
- 11V/µs
- Gain Bandwidth Product:
- 22 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 50 µV
- Current - Supply:
- 1.7mA
- Current - Output / Channel:
- 70 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TSV7721ILT FAQ
1.How can I place an order for TSV7721ILT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV7721ILT 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 TSV7721ILT reliable?
The price and inventory of TSV7721ILT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV7721ILT is usually 5 days.
3.What payment methods are accepted for TSV7721ILT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV7721ILT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV7721ILT?
TSV7721ILT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV7721ILT 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 TSV7721ILT?
For technical support, including TSV7721ILT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV7721ILT requirements.
6.How does Aetrix verify that TSV7721ILT is sourced from the original manufacturer or authorized distributors?
All TSV7721ILT 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 TSV7721ILT meets industry standards.
7.What is the process for return or replacement of TSV7721ILT?
All TSV7721ILT units undergo pre-shipment inspection (PSI). If there is an issue with TSV7721ILT, 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 TSV7721ILT part is unused and in its original packaging.
Return procedure for TSV7721ILT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV7721ILT Tags
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