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Texas Instruments TLV3702IDR
- Part No.:
- TLV3702IDR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV3702IDR.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:9,997
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Product details
Overview
TLV3702IDR from Texas Instruments is a dual nanopower comparator with push-pull CMOS output, designed for ultra-low-power sensing and threshold detection in battery-constrained systems. It draws only 560 nA per channel, operates from 2.7 V to 16 V, supports input common-mode voltage up to VCC + 5 V, and is rated for –40°C to +125°C industrial temperature range.
For engineers reviewing the TLV3702IDR datasheet, TLV3702IDR pinout, TLV3702IDR application, or TLV3702IDR equivalent, key selection criteria include quiescent current budget, rail-overvoltage input tolerance, push-pull output drive capability without external pull-up, and SOIC-8 packaging compatibility with legacy layouts.
Technical Context
The TLV3702IDR implements a precision bipolar input stage enabling over-rail operation (–0.1 V to VCC + 5 V) and fail-safe inputs up to 16 V independent of supply. Its internal power-on-reset circuit holds outputs low for ≤3 ms during VCC ramp-up, ensuring deterministic startup behavior.
Each channel features matched propagation delays (tPLH/tPHL = 16–45 µs at 50 mV overdrive), 1–5 mV input hysteresis, and 72–88 dB CMRR across supply range - optimized for stable decision-making in noisy, low-voltage portable environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply current | 560 nA per channel - enables multi-year battery life in coin-cell–powered devices |
| Input common-mode range | –0.1 V to VCC + 5 V - allows direct sensing of voltages exceeding supply rail (e.g., battery voltage monitoring) |
| Supply voltage range | 2.7 V to 16 V single supply - supports wide input sources including 3.3 V, 5 V, and 12 V systems |
| Output type | Push-pull CMOS - eliminates need for external pull-up resistor, reducing BOM count and standby leakage |
| Input offset voltage | 250 µV typical - ensures accurate threshold detection with minimal calibration overhead |
| Propagation delay | 16 µs at 50 mV overdrive - balances speed and power for sub-10 kHz event detection |
| Operating temperature | –40°C to +125°C - qualified for automotive cabin, industrial sensor, and medical wearable use |
Pinout & Package
TLV3702IDR is housed in an 8-pin SOIC (D) package measuring 4.9 mm × 6.0 mm, with standard 1.27 mm pitch and gull-wing leads compatible with automated assembly and IPC-7351B footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | CMOS push-pull output for channel 1 - sinks/sours current without external components |
| 2 | 1IN− | Inverting input for channel 1 - accepts signals up to VCC + 5 V with <14 nA bias current |
| 3 | 1IN+ | Noninverting input for channel 1 - same over-rail capability and bias as IN− |
| 4 | GND | Analog ground reference - must connect to low-impedance system ground plane |
| 5 | 2IN+ | Noninverting input for channel 2 - electrically isolated from channel 1 inputs |
| 6 | 2IN− | Inverting input for channel 2 - supports independent threshold comparison |
| 7 | 2OUT | CMOS push-pull output for channel 2 - fully independent output stage |
| 8 | VCC | Positive supply pin - decoupling capacitor (0.1 µF ceramic) required adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| Reverse battery protection | Withstands –20 V on VCC relative to GND - prevents damage from incorrect battery insertion in portable instruments |
| Fail-safe inputs | Inputs remain high-impedance and undamaged even when unpowered or at –0.1 V to 16 V - eliminates sequencing constraints |
| Power-on reset | Internal POR holds both outputs low for ≤3 ms until VCC ≥ 1.5 V - guarantees known initial state |
| Over-rail input stage | Operates with inputs 5 V above VCC without clamping or distortion - enables direct Li-ion battery voltage monitoring |
| Ultra-small footprint option | Also available in MSOP-8 (DGK) - same electrical specs, 3 mm × 4.9 mm size for space-constrained designs |
Applications
| Portable Battery Monitoring | Consumer Medical Electronics |
|---|---|
Use Scenario: Monitoring cell voltage in wearable ECG patches or glucose meters powered by CR2032 coin cells. IC Role / Device Role / Timing Role: Dual-channel comparator detects under-voltage (channel 1) and over-voltage (channel 2) thresholds to trigger low-battery alerts or shutdown. Use Value: 560 nA/channel supply current extends battery life beyond 3 years; over-rail input allows direct measurement of 3.0–3.6 V battery without level-shifting. | Use Scenario: Detecting electrode contact quality in handheld pulse oximeters using AC-coupled skin impedance sensing. IC Role / Device Role / Timing Role: One channel compares filtered sensor signal against reference; second channel validates signal presence via amplitude envelope detection. Use Value: Push-pull outputs drive LED indicators directly; –40°C to +125°C rating ensures reliability across clinical and home-use environments. |
| Security Detection Systems | Handheld Instruments |
Use Scenario: Tamper-sensing in smart locks using magnetic reed switch or capacitive proximity detection. IC Role / Device Role / Timing Role: Comparator monitors analog output of Hall-effect sensor or capacitance change; triggers wake-up interrupt on threshold breach. Use Value: Input common-mode range up to VCC + 5 V accommodates 5 V sensor rails while operating from 3.3 V MCU supply - no level shifter needed. | Use Scenario: Threshold detection in handheld multimeters for auto-ranging and overload protection circuits. IC Role / Device Role / Timing Role: Dual comparators implement fast over-range flagging (e.g., >10 V on 10 V range) and low-battery cutoff logic. Use Value: 2.7 V minimum supply enables operation down to near-dead battery; SOIC-8 package fits standard test equipment PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual nanopower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3702CDR | Same silicon, commercial-grade (0°C to 70°C) instead of industrial (–40°C to 125°C); identical pinout, specs, and SOIC-8 package | Suitable for consumer electronics where ambient temperature stays within room range | Select TLV3702CDR only if full industrial temp range is not required - lower cost, same layout |
| TLV3402IDR | Lower supply current (470 nA/ch), same over-rail input, but open-drain output requiring external pull-up; SOIC-8 package | Requires additional resistor for logic-level output; better for wired-OR or I²C-compatible signaling | Choose TLV3402IDR only if open-drain interface is mandatory; otherwise TLV3702IDR's push-pull saves component count |
Compared with TLV3702CDR, TLV3702IDR provides extended temperature qualification critical for automotive or outdoor instrumentation; compared with TLV3402IDR, it eliminates pull-up resistors and reduces board area and leakage paths in always-on battery systems.
Availability
TLV3702IDR is available at Aetrix Electronics and suitable for portable battery monitoring, consumer medical electronics, security detection systems, and handheld instruments requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TLV3702IDR 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 company specializing in analog and embedded processing technologies, with leadership in low-power signal chain and power management solutions.
The TLV370x product line was engineered specifically for ultra-low-power threshold detection in battery-operated and energy-harvesting systems, emphasizing nanopower consumption, over-rail input robustness, and deterministic startup behavior.
FAQ
What is the maximum input voltage allowed on TLV3702IDR pins?
The TLV3702IDR supports input voltages from –0.1 V to VCC + 5 V, with absolute maximum ratings up to ±20 V differential and 16 V above GND. This over-rail capability enables direct connection to battery terminals or sensors operating at higher voltages than the comparator's supply rail - a key advantage for TLV3702IDR in portable power monitoring applications.
Does TLV3702IDR require external pull-up resistors on its outputs?
No. TLV3702IDR features a push-pull CMOS output stage that actively drives both high and low states, eliminating the need for external pull-up resistors. This reduces component count, board space, and standby current - making TLV3702IDR ideal for ultra-low-power designs where every nanoamp matters.
What is the purpose of the Power-On Reset (POR) function in TLV3702IDR?
The internal POR circuit in TLV3702IDR holds both outputs low for up to 3 ms after VCC crosses 1.5 V during power-up. This ensures a known, safe initial state before the comparator begins evaluating inputs - preventing spurious transitions or undefined logic levels in TLV3702IDR-based control or alert circuits during system startup.
Can TLV3702IDR operate from a 2.5 V supply?
TLV3702IDR is specified for minimum 2.7 V supply over the full industrial temperature range (–40°C to +125°C). While the datasheet lists 2.5 V as the absolute lower limit for recommended operation, TI characterizes performance and guarantees specifications starting at 2.7 V - therefore TLV3702IDR should be used with ≥2.7 V supplies in production designs.
Is TLV3702IDR pin-compatible with other comparators in the TLV370x family?
Yes. TLV3702IDR shares identical pinout and functionality with TLV3702CDR (commercial grade) and TLV3702IDGK (MSOP-8 variant). All TLV3702 variants use the same 8-pin SOIC (D) pin configuration: pins 1/7 = outputs, 2/3/5/6 = inputs, 4 = GND, 8 = VCC. This enables drop-in replacement across temperature grades and packages without layout changes.
TLV3702IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- CMOS, Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 16V, ±1.35V ~ 8V
- :
- 5mV @ 15V
- Voltage - Input Offset (Max):
- 250pA @ 15V
- Current - Input Bias (Max):
- 10mA
- Current - Output (Typ):
- 1µA
- Current - Quiescent (Max):
- 88dB CMRR, 105dB PSRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
TLV3702IDR FAQ
1.How can I place an order for TLV3702IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV3702IDR 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 TLV3702IDR reliable?
The price and inventory of TLV3702IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV3702IDR is usually 5 days.
3.What payment methods are accepted for TLV3702IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV3702IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV3702IDR?
TLV3702IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV3702IDR 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 TLV3702IDR?
For technical support, including TLV3702IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV3702IDR requirements.
6.How does Aetrix verify that TLV3702IDR is sourced from the original manufacturer or authorized distributors?
All TLV3702IDR 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 TLV3702IDR meets industry standards.
7.What is the process for return or replacement of TLV3702IDR?
All TLV3702IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV3702IDR, 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 TLV3702IDR part is unused and in its original packaging.
Return procedure for TLV3702IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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