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Texas Instruments LMC7215IMX
- Part No.:
- LMC7215IMX
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC7215IMX.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,726
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Product details
Overview
LMC7215IMX from Texas Instruments is a micro-power, rail-to-rail CMOS comparator with push-pull output, 0.7 μA typical supply current, 2 V to 8 V supply voltage range, and input common-mode range extending beyond both rails. It delivers 45 mA output drive at 5 V and features 25 μs propagation delay (10 mV overdrive), enabling use in battery-powered voltage monitoring and threshold detection circuits.
For engineers reviewing the LMC7215IMX datasheet, LMC7215IMX pinout, LMC7215IMX application, or LMC7215IMX equivalent, this device is selected for ultra-low-quiescent-current sensing where rail-to-rail input operation, fast response under light overdrive, and direct load driving without external pull-ups are required.
Technical Context
The LMC7215IMX implements a CMOS input stage with near-zero input bias current (5 fA typical) and high open-loop gain (140 dB), enabling precise DC threshold detection without input loading errors. Its push-pull output eliminates need for external pull-up resistors and supports direct LED or beeper driving.
It operates across −40°C to +85°C with guaranteed functionality from 2.7 V to 5 V, and its input voltage range exceeds supply rails (e.g., −0.3 V to 5.3 V at VS = 5 V), allowing direct sensing of supply lines or current-sense resistor voltages without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 0.7 μA typical - enables multi-year operation on coin-cell batteries in always-on monitoring systems |
| Supply Voltage Range | 2 V to 8 V - supports single-cell Li-ion, dual-cell alkaline, and 5 V logic rails without regulation |
| Input Common-Mode Range | Extends beyond rails (e.g., −0.3 V to 5.3 V at 5 V supply) - allows direct connection to unregulated power rails or current-sense nodes |
| Output Drive Capability | 45 mA sink/source at 5 V - drives LEDs, relays, or logic inputs directly without buffer stages |
| Propagation Delay | 24 μs (high-to-low), 24 μs (low-to-high) at 10 mV overdrive and 5 V supply - suitable for RC timers and slow-varying analog thresholds |
| Input Offset Voltage | 6 mV max - ensures reliable switching within ±10 mV of setpoint in precision window or alarm applications |
| ESD Tolerance | 2 kV HBM - meets basic handling requirements for industrial assembly without special ESD controls |
Pinout & Package
LMC7215IMX is housed in an 8-pin SOIC (Package Drawing D), 3.91 mm × 4.90 mm footprint, 1.75 mm max height, RoHS-compliant with Sn finish and MSL Level-1 rating.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | Accepts reference or sensed signal; rail-to-rail capable with sub-picoampere input current |
| 2 | Non-Inverting Input (+) | Accepts reference or sensed signal; identical electrical behavior to Pin 1 |
| 3 | Ground (V−) | Power return and logic low reference; must be low-impedance for stable operation |
| 4 | Output | Push-pull CMOS output; actively drives high or low-no external pull-up required |
| 5 | Power Supply (V+) | Positive supply rail; accepts 2 V–8 V; bypass capacitor recommended near pin |
| 6 | NC | No internal connection; left unconnected per TI datasheet |
| 7 | NC | No internal connection; left unconnected per TI datasheet |
| 8 | NC | No internal connection; left unconnected per TI datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input range beyond supplies | Enables direct sensing of VCC or ground-referenced shunt voltages without attenuation or clamping diodes |
| Push-pull output stage | Eliminates need for external pull-up resistors, reducing BOM count and power loss in low-duty-cycle wake-up circuits |
| 0.7 μA supply current | Supports >10-year battery life in coin-cell–powered IoT sensors operating at 0.1% duty cycle |
| 45 mA output drive at 5 V | Directly energizes 5 V relays, standard LEDs, or TTL/CMOS inputs without discrete transistors |
| Latch-up resistance >300 mA | Withstands transient fault currents during board-level ESD events or hot-plug conditions |
Applications
| Battery Voltage Monitor | RC Timer Threshold Detector |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging to trigger cutoff or alert at 3.0 V and 4.2 V thresholds. IC Role / Device Role / Timing Role: Dual-threshold comparator implementing hysteresis via external feedback; one LMC7215IMX per threshold. Use Value: Ultra-low 0.7 μA quiescent current preserves battery capacity between measurements; rail-to-rail inputs accept full 0–4.2 V range without scaling. |
Use Scenario: Generating precise time delays in portable medical devices using resistor-capacitor charging curves. IC Role / Device Role / Timing Role: Threshold detector triggering state change when RC voltage crosses fixed reference. Use Value: 6 mV max input offset ensures timing accuracy within ±0.5% over temperature; push-pull output drives next-stage logic directly. |
| Alarm Circuit for Sensor Output | Window Comparator for Metering |
Use Scenario: Detecting out-of-range temperature or pressure sensor outputs in handheld test equipment. IC Role / Device Role / Timing Role: Single-ended comparator comparing amplified sensor output against programmable reference. Use Value: Input common-mode range beyond rails allows reference generation from same supply; 2 kV HBM ESD tolerance withstands field handling. |
Use Scenario: Validating analog input signals in energy meters remain within ±1% tolerance band around nominal value. IC Role / Device Role / Timing Role: One LMC7215IMX as upper limit detector, another as lower limit detector in discrete window architecture. Use Value: 140 dB open-loop gain ensures clean digital transitions even with noisy sensor inputs; SOIC package supports automated optical inspection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC7225IM5X/NOPB | Open-drain output, same 0.7 μA supply current and rail-to-rail input, but requires external pull-up resistor | Used where level shifting to higher voltage (up to 15 V) or wired-OR logic is needed | Select when output must interface with non-5 V logic families or multiple comparators share a common bus |
| TLV3701CDR | 0.85 μA supply current, 2.7–16 V supply, push-pull output, but 10 mV input offset (vs. 6 mV max for LMC7215IMX) | Higher supply voltage tolerance suits 12 V automotive subsystems; slightly lower precision | Choose for wider supply range or AEC-Q100–unqualified industrial designs where 4 mV extra offset is acceptable |
Compared with LMC7215IMX, LMC7225IM5X/NOPB trades push-pull simplicity for level-shifting flexibility, while TLV3701CDR extends voltage range at minor offset cost-both require layout changes due to different packages (SOT-23 vs. SOIC) and pinouts.
Availability
LMC7215IMX is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable medical devices, and industrial sensor interfaces requiring stable component supply with long lifecycle support.
Supply support for LMC7215IMX 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
Texas Instruments is a global semiconductor leader delivering analog and embedded processing solutions, with over 90 years of innovation in precision analog ICs.
The LMC7215IMX belongs to TI's micro-power comparator product line, engineered for ultra-low-power sensing and threshold detection in space- and energy-constrained portable and battery-operated systems.
FAQ
What is the maximum supply voltage for LMC7215IMX?
The absolute maximum supply voltage (V+ − V−) for LMC7215IMX is 10 V, but the recommended operating range is 2 V to 8 V. Operation at 8 V is fully characterized and supported across the −40°C to +85°C temperature range, with parameters such as propagation delay and output drive validated per the SNOS882E datasheet.
Does LMC7215IMX have rail-to-rail input capability?
Yes, LMC7215IMX has a true rail-to-rail input common-mode range that extends beyond both supply rails-for example, −0.3 V to 5.3 V when VS = 5 V. This allows direct connection to supply lines or current-sense resistors without external level-shifting components, as confirmed in the "Input Common-Mode Voltage" section of the datasheet.
Can LMC7215IMX drive an LED directly?
Yes, LMC7215IMX can drive an LED directly: its push-pull output sources up to 45 mA at 5 V, sufficient for standard indicator LEDs. The output voltage high is 4.8 V (min) at IOH = 4.0 mA, ensuring reliable turn-on with series resistors ≥100 Ω. No external transistor or pull-up is needed-verified in the "Output Voltage High" and "Output Short Circuit Current" specifications.
What is the input offset voltage specification for LMC7215IMX?
The input offset voltage for LMC7215IMX is 6 mV maximum at 25°C, with typical value of 1 mV. This parameter is tested and guaranteed across the full operating temperature range (−40°C to +85°C), and directly impacts threshold accuracy in precision monitoring applications such as battery end-of-discharge detection.
Is LMC7215IMX pin-compatible with other comparators in the LMC72xx family?
No, LMC7215IMX (8-pin SOIC) is not pin-compatible with the 5-pin SOT-23 variants like LMC7215IM5X/NOPB or LMC7225IM5X/NOPB. Pin 6–8 are NC in LMC7215IMX, whereas the 5-pin versions repurpose those positions. Substitution requires PCB layout revision-confirmed by TI's PACKAGE OPTION ADDENDUM and connection diagrams in SNOS882E.
LMC7215IMX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 2V ~ 8V, ±1V ~ 4V
- :
- 6mV @ 5V
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- 30mA
- Current - Output (Typ):
- 1µA
- Current - Quiescent (Max):
- 80dB CMRR, 90dB PSRR
- CMRR, PSRR (Typ):
- 24µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
LMC7215IMX FAQ
1.How can I place an order for LMC7215IMX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC7215IMX 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 LMC7215IMX reliable?
The price and inventory of LMC7215IMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC7215IMX is usually 5 days.
3.What payment methods are accepted for LMC7215IMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC7215IMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC7215IMX?
LMC7215IMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC7215IMX 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 LMC7215IMX?
For technical support, including LMC7215IMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC7215IMX requirements.
6.How does Aetrix verify that LMC7215IMX is sourced from the original manufacturer or authorized distributors?
All LMC7215IMX 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 LMC7215IMX meets industry standards.
7.What is the process for return or replacement of LMC7215IMX?
All LMC7215IMX units undergo pre-shipment inspection (PSI). If there is an issue with LMC7215IMX, 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 LMC7215IMX part is unused and in its original packaging.
Return procedure for LMC7215IMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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