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STMicroelectronics TSV7721IYLT
- Part No.:
- TSV7721IYLT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TSV7721IYLT.pdf
- Description:
- HIGH BANDWIDTH (22MHZ) LOW OFFSE
- Quantity:
- Payment:
- Shipping:
Inventory:2,970
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Product details
Overview
TSV7721IYLT 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.
For engineers reviewing the TSV7721IYLT datasheet, TSV7721IYLT pinout, TSV7721IYLT application, or TSV7721IYLT equivalent, this op amp is selected for precision analog front-ends where low input bias current, rail-to-rail output swing, and ground-sensing common-mode range (down to VCC−) are critical - especially in battery-powered and automotive-grade current measurement systems.
Technical Context
The TSV7721IYLT employs a unity-gain-stable voltage-feedback architecture with 22 MHz GBW and 44° phase margin at CL = 47 pF, ensuring stable operation as an ADC input buffer. Its input stage is optimized for near-ground common-mode operation (VCC− − 0.1 V), minimizing offset drift when sensing shunt voltages.
It features ultra-low 2 pA input bias current and 7 nV/√Hz input voltage noise at 10 kHz, making it suitable for high-impedance transducer interfaces like photodiodes and strain gauges. The device maintains full specification across −40°C to +125°C and supports automotive AEC-Q100 Grade 1 qualification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 22 MHz - enables accurate amplification of signals up to ~10 MHz with minimal phase error in closed-loop configurations. |
| Input Offset Voltage | 50 µV typ., 200 µV max - ensures ≤0.2% error in 100 mV shunt voltage measurements without trimming. |
| Input Bias Current | 2 pA typ. - allows direct connection to photodiodes and high-Z sensors 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. |
| Output Swing | Rail-to-rail - delivers full dynamic range into ADCs with 0–VCC input ranges, maximizing SNR utilization. |
| Common-Mode Input Range | VCC− − 0.1 V to VCC+ − 1.1 V - enables true low-side current sensing with inputs referenced to ground. |
| Quiescent Current | 1.7 mA per channel at 5 V - balances speed and power for always-on automotive sensor nodes. |
Pinout & Package
TSV7721IYLT is housed in a SOT23-5 package with exposed pad (not electrically connected), optimized for space-constrained PCB layouts and thermal performance in automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage swing; drives ADC inputs or downstream stages directly. |
| 2 (VCC−) | Negative supply | Ground reference for single-supply operation; common return for all internal circuitry. |
| 3 (IN+) | Non-inverting input | High-impedance node for reference or sensor signal; accepts voltages down to VCC− − 0.1 V. |
| 4 (IN−) | Inverting input | High-impedance feedback node; used for precision current-sense differential configuration. |
| 5 (VCC+) | Positive supply | Accepts 1.8–5.5 V; powers internal biasing and output stage; defines output voltage range. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stability with 47 pF load | Eliminates need for external compensation when buffering SAR or sigma-delta ADCs. |
| Optimized low-rail input stage | Minimizes offset drift at Vicm ≈ 0 V - critical for shunt-based current monitoring accuracy. |
| 7 nV/√Hz input voltage noise (10 kHz) | Preserves SNR in photodiode transimpedance amplifiers with >1 MΩ feedback resistors. |
| AEC-Q100 Grade 1 qualified | Guarantees operation from −40°C to +125°C ambient - validated for under-hood automotive use. |
| EMI rejection up to 2.4 GHz | Reduces RF rectification-induced offset shifts in noisy automotive ECU environments. |
Applications
| Automotive Low-Side Current Sensing | Photodiode Signal Amplification |
|---|---|
Use Scenario: Monitoring battery discharge current in 12 V vehicle ECUs using a 1 mΩ shunt resistor. IC Role / Device Role / Timing Role: Precision op amp configured in differential mode to amplify microvolt-level shunt voltage while rejecting common-mode noise. Use Value: 200 µV max offset ensures <0.2% full-scale error at 100 mV shunt drop; rail-to-rail output fully utilizes 12-bit ADC range. | Use Scenario: Converting photocurrent from a silicon PIN photodiode in an automotive rain/light sensor. IC Role / Device Role / Timing Role: Transimpedance amplifier with 10 MΩ feedback resistor, requiring ultra-low input bias current to avoid signal loss. Use Value: 2 pA input bias current limits measurement error to <0.02% at 10 nA photocurrent; 22 MHz GBW supports fast transient response to light pulses. |
| Strain Gauge Bridge Interface | Industrial Sensor Signal Conditioning |
Use Scenario: Reading quarter-bridge strain gauge outputs in vehicle suspension load cells. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end stage providing gain and common-mode rejection before digitization. Use Value: 99 dB CMRR at 25°C and 74 dB over full temperature range suppresses bridge excitation noise; low 1.7 mA ICC enables multi-channel designs. | Use Scenario: Signal conditioning for MEMS pressure sensors in engine control modules. IC Role / Device Role / Timing Role: High-precision buffer and level-shifter between sensor output and isolated ADC interface. Use Value: 5.5 V max supply allows direct integration with 5 V sensor excitation rails; 125°C operating limit matches under-hood thermal requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV792IDT | 50 MHz GBW, 1.8–5.5 V supply, 3.5 mA ICC - higher speed but 3× higher quiescent current. | Better for wideband sensor interfaces (e.g., ultrasonic transducers); less optimal for always-on low-power current sensing. | Select when bandwidth >30 MHz is required and power budget allows ≥3 mA per channel. |
| TSB7192IPT | 22 MHz GBW, 36 V max supply, 2.5 mA ICC - extended voltage range, higher offset (600 µV max). | Suitable for industrial 24 V systems; not automotive-qualified; lower DC precision limits low-side shunt accuracy. | Select for high-voltage industrial current sensing where 36 V operation is mandatory and ±600 µV offset is acceptable. |
Compared with TSV7721IYLT, TSV792IDT trades power efficiency for bandwidth, while TSB7192IPT sacrifices automotive qualification and DC accuracy for high-voltage robustness - making TSV7721IYLT the optimal choice for low-power, high-precision, automotive-grade current and photodiode sensing.
Availability
TSV7721IYLT is available at Aetrix Electronics and suitable for automotive current measurement, photodiode amplification, and strain gauge signal conditioning requiring stable component supply across production lifecycles.
Supply support for TSV7721IYLT 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, power management devices, and automotive-grade components.
The TSV772x series belongs to ST's precision op amp product line, engineered specifically for high-accuracy, high-bandwidth sensor signal conditioning in automotive and industrial applications where low input bias current and ground-sensing capability are essential.
FAQ
What is the maximum capacitive load the TSV7721IYLT can drive without external compensation?
The TSV7721IYLT is fully specified and stable with up to 47 pF capacitive load in unity-gain configuration, as verified by 44° phase margin and absence of peaking in open-loop bode plots. For loads exceeding 47 pF, a 10–22 Ω isolation resistor in series with the output restores stability without degrading DC accuracy - a method validated in Figure 35 of the DS13614 datasheet.
Does the TSV7721IYLT support true single-supply operation with input down to ground?
Yes. The input common-mode range extends to VCC− − 0.1 V, enabling direct connection to ground-referenced shunt resistors in low-side current sensing. This is confirmed in Table 5 (Vicm min = VCC− − 0.1 V) and reinforced by design optimization for Vicm ≈ 0 V in Section 5.1 of DS13614, where input offset is trimmed at 0 V common-mode.
Is the TSV7721IYLT pin-compatible with other op amps in the same SOT23-5 footprint?
No. While the SOT23-5 package is standard, the pinout (OUT/VCC−/IN+/IN−/VCC+) is specific to the TSV7721 and differs from industry-standard arrangements such as the LMV321 or MCP6001. Direct replacement requires schematic and layout revision - confirmed by Figure 1 and Table 1 in DS13614, which define unique pin mapping.
What is the typical power dissipation of the TSV7721IYLT at 5 V supply and room temperature?
At 5 V supply and 25°C, the TSV7721IYLT draws 1.7 mA typical supply current, resulting in 8.5 mW quiescent power dissipation (5 V × 1.7 mA). With no load, junction temperature rise is negligible; under full output swing into 10 kΩ, total dissipation remains below 15 mW - well within the SOT23-5 package's 250°C/W thermal resistance limit for ambient temperatures ≤85°C.
TSV7721IYLT 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
TSV7721IYLT FAQ
1.How can I place an order for TSV7721IYLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV7721IYLT 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 TSV7721IYLT reliable?
The price and inventory of TSV7721IYLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV7721IYLT is usually 5 days.
3.What payment methods are accepted for TSV7721IYLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV7721IYLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV7721IYLT?
TSV7721IYLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV7721IYLT 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 TSV7721IYLT?
For technical support, including TSV7721IYLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV7721IYLT requirements.
6.How does Aetrix verify that TSV7721IYLT is sourced from the original manufacturer or authorized distributors?
All TSV7721IYLT 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 TSV7721IYLT meets industry standards.
7.What is the process for return or replacement of TSV7721IYLT?
All TSV7721IYLT units undergo pre-shipment inspection (PSI). If there is an issue with TSV7721IYLT, 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 TSV7721IYLT part is unused and in its original packaging.
Return procedure for TSV7721IYLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV7721IYLT Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
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LM358ADR
Texas Instruments
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LM2904DGKR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM2902DR
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LM358P
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