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STMicroelectronics TS7211AILT
- Part No.:
- TS7211AILT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TS7211AILT.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:68,845
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Product details
Overview
TS7211AILT from STMicroelectronics is a micropower single rail-to-rail input comparator with push-pull output, specified for 2.7V–10V supply operation, 0.5µs response time at 5V, 6µA typical supply current, and SOT23-5 package. It delivers precision low-power comparison in space-constrained battery-powered systems such as portable medical monitors and wireless sensor nodes.
For engineers reviewing the TS7211AILT datasheet, TS7211AILT pinout, TS7211AILT application, or TS7211AILT equivalent, key selection criteria include input offset voltage (7–18 mV), rail-to-rail common-mode range, push-pull drive capability, ultra-low quiescent current, and industrial temperature support (−40°C to +85°C).
Technical Context
The TS7211AILT employs BiCMOS process technology to achieve rail-to-rail input stage operation across the full supply range (VCC− −0.3 V to VCC+ +0.3 V) and high open-loop gain (240 dB). Its push-pull output eliminates external pull-up resistors and supports direct interfacing with CMOS/TTL logic.
It features low input bias current (1–600 pA), 6 µV/°C offset drift, and robust ESD protection (2 kV HBM, 200 V MM), enabling reliable operation in noisy, low-current sensing paths such as battery voltage monitoring and analog threshold detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - supports single-cell Li-ion, dual-cell alkaline, and 5 V/3.3 V system rails without level-shifting. |
| Supply Current (Typ.) | 6 µA @ 5 V - enables multi-year operation on coin-cell batteries in always-on wake-up circuits. |
| Response Time | 0.4–0.5 µs @ 100 mV overdrive - suitable for fast edge detection in power sequencing and fault flag generation. |
| Input Offset Voltage | 7–18 mV (A-grade) - ensures accurate thresholding down to ~10 mV resolution in precision voltage monitoring. |
| Common-Mode Range | Rail-to-rail (VCC− −0.3 V to VCC+ +0.3 V) - allows direct sensing of signals near supply rails, e.g., battery end-of-discharge detection. |
| Output Type | Push-pull - drives high/low actively without external pull-up, reducing BOM count and board area in compact designs. |
| ESD Protection | 2 kV HBM / 200 V MM - meets IEC 61000-4-2 Level 2 requirements for handheld and portable equipment interfaces. |
Pinout & Package
TS7211AILT is housed in a 5-pin SOT23-5 (Tiny Package), with 1.9 mm × 2.8 mm footprint and 0.95 mm pitch. The package supports reflow soldering (lead temperature ≤250°C for 10 s) and offers 250°C/W junction-to-ambient thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC− (GND) | Ground reference terminal; must be connected directly to low-impedance system ground plane. |
| 2 | IN+ | Non-inverting input; accepts rail-to-rail common-mode signals up to VCC+ +0.3 V. |
| 3 | IN− | Inverting input; matched to IN+ for low input offset and balanced noise rejection. |
| 4 | VCC+ | Positive supply terminal; decoupling capacitor (100 nF ceramic) required within 5 mm. |
| 5 | OUT | Push-pull output; sinks up to 5 mA or sources up to 5 mA, compatible with 1.8 V–5 V logic families. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Enables direct comparison of signals at VCC− or VCC+, eliminating input voltage translation circuitry. |
| Push-pull output architecture | Removes need for external pull-up resistor, reducing component count and improving rise/fall symmetry (20 ns TR/TF). |
| Ultra-low 6 µA supply current | Extends battery life in always-on comparators used for periodic wake-up or low-duty-cycle sensing. |
| 0.5 µs propagation delay at 5 V | Supports real-time response in power-supply OVP/UVP circuits and fast analog watchdog timers. |
| Industrial temperature range | Guaranteed operation from −40°C to +85°C, validated across all electrical parameters at 2.7 V, 5 V, and 10 V. |
Applications
| Battery Voltage Monitoring | PCMCIA Card Power Sequencing |
|---|---|
Use Scenario: Detecting low-battery condition in lithium coin-cell powered IoT sensors before brownout. IC Role / Device Role / Timing Role: Precision comparator comparing battery voltage against a stable reference to assert shutdown signal. Use Value: Rail-to-rail input allows direct sensing down to 0.2 V above GND; 6 µA ICC minimizes load on aging cells. | Use Scenario: Controlling power-up order of VCC and VPP rails on hot-pluggable PCMCIA cards. IC Role / Device Role / Timing Role: Fast-response comparator generating enable pulses with sub-microsecond timing accuracy. Use Value: 0.4 µs TPHL ensures deterministic sequencing under varying load conditions and temperature extremes. |
| Mobile Phone Keypad Scan Interface | Alarm Threshold Detection |
Use Scenario: Scanning mechanical keypad matrix rows/columns using low-current analog sensing. IC Role / Device Role / Timing Role: Low-input-current comparator detecting key press-induced voltage divider shifts. Use Value: 1 pA min IIB prevents loading of high-impedance RC networks; rail-to-rail input accommodates full divider swing. | Use Scenario: Triggering intrusion alarm when photodiode current falls below preset threshold in security PIR modules. IC Role / Device Role / Timing Role: Micropower window comparator front-end (with external hysteresis) for standby-mode sensing. Use Value: 2 kV HBM ESD rating protects against user-handling discharge; 7 mV max VIO ensures repeatable trip point calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar micropower rail-to-rail comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV331M5X/NOPB | Higher supply current (17 µA typ.), open-drain output, no rail-to-rail inputs (CMVR = 0 to VCC−1.2 V) | Requires external pull-up; unsuitable for low-voltage (<1.5 V headroom) sensing near rails | Select only if open-drain interface is required and supply current budget >15 µA |
| MAX9021AXK+T | Lower offset (1.5 mV typ.), but 12 µA ICC and no rail-to-rail input (CMVR = 0.2 V to VCC−0.2 V) | Superior DC accuracy but limited common-mode range; not usable for battery end-of-life detection | Prefer when offset-critical thresholding dominates over rail-sensing capability and power |
Compared with LMV331M5X/NOPB and MAX9021AXK+T, TS7211AILT uniquely combines rail-to-rail input, push-pull output, and sub-10 µA supply current-enabling true single-supply, zero-headroom sensing in ultra-low-power portable systems where both precision and minimal BOM are mandatory.
Availability
TS7211AILT is available at Aetrix Electronics and suitable for battery-powered systems, portable medical devices, PCMCIA card interfaces, and security alarm sensors requiring stable component supply across extended product lifecycles.
Supply support for TS7211AILT 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 analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.
The TS7211 belongs to ST's precision analog comparator family, engineered specifically for ultra-low-power, space-constrained applications where rail-to-rail input performance and push-pull drive are essential-such as wearable health monitors and energy-harvesting sensor nodes.
FAQ
What is the maximum allowable differential input voltage for TS7211AILT?
The absolute maximum differential input voltage is ±0.3 V beyond either supply rail (i.e., VCC− −0.3 V to VCC+ +0.3 V). Exceeding this risks permanent damage to the input stage. This limit applies regardless of common-mode voltage and is enforced by internal ESD diodes.
Can TS7211AILT operate from a 1.8 V supply?
No. TS7211AILT is fully specified only from 2.7 V to 10 V. At 1.8 V, the internal BiCMOS circuitry cannot bias correctly, resulting in undefined output behavior, excessive propagation delay (>10 µs), and potential latch-up. Use ST's TS881 for 1.6 V–5.5 V operation.
Does TS7211AILT require an external hysteresis network?
Not inherently-but recommended for noisy environments. The device has no internal hysteresis; adding 1–10 MΩ feedback from OUT to IN− introduces 1–10 mV of hysteresis. This prevents oscillation during slow-moving input transitions near the threshold, especially in battery voltage monitoring.
Is the SOT23-5 package of TS7211AILT RoHS-compliant and lead-free?
Yes. TS7211AILT is manufactured in STMicroelectronics' RoHS-compliant, lead-free SOT23-5 package (package code L), with matte tin finish and halogen-free molding compound. It meets JEDEC J-STD-020D reflow profile requirements and carries the "E3" marking per JEDEC standards.
TS7211AILT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 10V
- :
- 7mV @ 5V
- Voltage - Input Offset (Max):
- 3pA @ 5V
- Current - Input Bias (Max):
- 30mA
- Current - Output (Typ):
- 12µA
- Current - Quiescent (Max):
- 70dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-5
TS7211AILT FAQ
1.How can I place an order for TS7211AILT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS7211AILT 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 TS7211AILT reliable?
The price and inventory of TS7211AILT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS7211AILT is usually 5 days.
3.What payment methods are accepted for TS7211AILT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS7211AILT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS7211AILT?
TS7211AILT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS7211AILT 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 TS7211AILT?
For technical support, including TS7211AILT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS7211AILT requirements.
6.How does Aetrix verify that TS7211AILT is sourced from the original manufacturer or authorized distributors?
All TS7211AILT 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 TS7211AILT meets industry standards.
7.What is the process for return or replacement of TS7211AILT?
All TS7211AILT units undergo pre-shipment inspection (PSI). If there is an issue with TS7211AILT, 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 TS7211AILT part is unused and in its original packaging.
Return procedure for TS7211AILT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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