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Analog Devices Inc. LTC6702IDC#TRMPBF
- Part No.:
- LTC6702IDC#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC6702IDC#TRMPBF.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,868
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Product details
Overview
LTC6702IDC#TRMPBF from Analog Devices (formerly Linear Technology) is a dual micropower rail-to-rail comparator with internal hysteresis, designed for battery-powered systems requiring low supply voltage (1.7V–5.5V), ultra-low quiescent current (30μA per comparator max), and fast propagation delay (500ns max). It operates across –40°C to +85°C and is housed in a 2mm × 2mm DFN package with exposed pad grounded.
For engineers reviewing the LTC6702IDC#TRMPBF datasheet, LTC6702IDC#TRMPBF pinout, LTC6702IDC#TRMPBF application, or LTC6702IDC#TRMPBF equivalent, key selection criteria include guaranteed propagation delay over temperature, input voltage range extending 100mV below ground, internal 4mV hysteresis, TTL/CMOS-compatible output drive, and compatibility with capacitive loads up to 10,000pF.
Technical Context
The LTC6702IDC#TRMPBF integrates two independent high-speed comparators with CMOS inputs and push-pull CMOS outputs. Each channel features built-in hysteresis (~4mV) to suppress noise-induced oscillation and enable stable operation with slow-moving signals. Input common-mode range extends from –0.1V to V+ – 1.2V, supporting level-shifting and negative-swing detection without external biasing.
Its break-before-make output stage minimizes shoot-through current during transitions, preserving micropower operation while delivering ±15mA output drive capability. Propagation delay remains stable across supply voltages (1.7V–5.5V) and load capacitances up to 10,000pF, with differential skew limited to 4ns between channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.7V to 5.5V - supports single-cell Li-ion, alkaline, and low-voltage logic rails without level shifting. |
| Quiescent Current | 30μA per comparator max - enables multi-year battery life in always-on sensing nodes. |
| Propagation Delay | 500ns max (–40°C to +85°C) - ensures reliable timing in clock regeneration up to 3.2MHz. |
| Input Hysteresis | 4mV typical - eliminates need for external positive feedback in noisy industrial or automotive environments. |
| Input Voltage Range | –0.1V to V+ – 1.2V - allows direct interfacing to signals below ground (e.g., current-sense shunts). |
| Output Drive | ±15mA at –40°C to +85°C - drives heavy capacitive loads (up to 10,000pF) without external buffers. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and automotive under-hood applications. |
Pinout & Package
Package: 8-lead (2mm × 2mm) plastic DFN with exposed pad (Pin 9), 1mm profile. Exposed pad must be soldered to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A (Pin 1) | Comparator A output | Push-pull CMOS output capable of sourcing/sinking ±15mA; no pull-up required. |
| –IN A (Pin 2) | Inverting input A | High-impedance CMOS input; accepts signals down to –0.1V relative to GND. |
| +IN A (Pin 3) | Noninverting input A | High-impedance CMOS input; supports large source impedances without loading error. |
| GND (Pin 4) | Analog/digital ground | Reference node for inputs and outputs; connects to exposed pad (Pin 9) in DC package. |
| +IN B (Pin 5) | Noninverting input B | Independent second comparator input; identical specs to +IN A. |
| –IN B (Pin 6) | Inverting input B | Independent second comparator input; identical specs to –IN A. |
| OUT B (Pin 7) | Comparator B output | Functionally identical to OUT A; differential skew ≤4ns vs. OUT A. |
| V+ (Pin 8) | Positive supply | Single supply input; requires 0.1μF bypass capacitor to GND (1μF recommended if IOUT ≥1mA). |
| Exposed Pad (Pin 9) | Thermal & electrical ground | Must be soldered to PCB ground plane; improves thermal dissipation (θJA = 102°C/W) and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail CMOS outputs | Swing within 250mV of GND and 350mV of V+ at ±15mA - directly interfaces with TTL/CMOS logic without level shifters. |
| Internal 4mV hysteresis | Eliminates external feedback components in threshold detection, reducing BOM count and layout area. |
| Input range below ground | Accepts –0.1V inputs - enables direct connection to low-side current-sense amplifiers or shunt monitors. |
| Capacitive load tolerance | Stable with loads up to 10,000pF - supports long trace routing or direct driving of LCD backlights or LED drivers. |
| Break-before-make output | Prevents shoot-through current during transitions - maintains micropower integrity even with dynamic loads. |
Applications
| Battery Voltage Monitoring | Window Comparator |
|---|---|
Use Scenario: Detecting low-battery condition (<2.8V) and critical undervoltage (<2.1V) in portable medical devices using dual thresholds. IC Role / Device Role / Timing Role: LTC6702IDC#TRMPBF acts as dual independent threshold detector with hysteresis, generating separate flags for warning and shutdown. Use Value: Eliminates need for external reference and hysteresis resistors; 30μA total supply current extends battery runtime by >30% versus discrete solutions. | Use Scenario: Validating sensor output stays within safe operating bounds (e.g., 1.2V–3.3V) in industrial PLC analog input modules. IC Role / Device Role / Timing Role: LTC6702IDC#TRMPBF implements high-accuracy window comparator using one channel for upper limit and one for lower limit. Use Value: Internal hysteresis prevents chatter near trip points; rail-to-rail inputs accept full sensor swing without clamping diodes. |
| Clock Regeneration | Low-Side Current Sensing Alarm |
Use Scenario: Recovering clean square-wave clocks from degraded sine-wave or noisy digital signals in battery-powered IoT gateways. IC Role / Device Role / Timing Role: LTC6702IDC#TRMPBF functions as high-speed comparator with 500ns delay, regenerating clocks up to 3.2MHz from low-amplitude inputs. Use Value: 100mV input overdrive capability and 4mV hysteresis ensure jitter-free output even with 10mV RMS noise on input signal. | Use Scenario: Triggering LED alerts when motor phase currents exceed 2.5A or 5.0A thresholds in compact BLDC driver boards. IC Role / Device Role / Timing Role: LTC6702IDC#TRMPBF compares amplified shunt voltages against precision references, driving LEDs directly via its ±15mA outputs. Use Value: Push-pull outputs eliminate external transistors; input range down to –0.1V accommodates bidirectional current sensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6700-2IMS#TRPBF | Integrated 400mV reference; higher 18μs propagation delay; SOT-23-8 package. | Best for space-constrained designs needing internal reference but not high speed. | Select LT6700-2 when reference integration outweighs speed requirement; not suitable for >100kHz clock regeneration. |
| LTC1442CMS8#TRPBF | Lower 5.7μA supply current; open-drain outputs; no internal hysteresis; 8μs delay. | Optimized for ultralow-power wake-up circuits where speed is secondary. | Choose LTC1442 when battery life is paramount and external hysteresis can be added; incompatible with direct TTL/CMOS drive. |
Compared with LTC6702IDC#TRMPBF, LT6700-2 offers integrated reference but sacrifices 36× speed, while LTC1442 trades speed and drive strength for 6× lower quiescent current - making LTC6702IDC#TRMPBF the optimal balance of speed, power, and integration for real-time threshold detection.
Availability
LTC6702IDC#TRMPBF is available at Aetrix Electronics and suitable for battery voltage monitoring, window comparator circuits, clock regeneration, and low-side current sensing applications requiring stable component supply across industrial temperature ranges.
Supply support for LTC6702IDC#TRMPBF 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
Analog Devices acquired Linear Technology in 2017 and maintains its precision analog portfolio. Linear pioneered high-performance analog ICs for demanding industrial, automotive, and medical applications.
The LTC6702 product line delivers micropower, high-speed comparators optimized for space- and energy-constrained systems where low-voltage operation, rail-to-rail inputs, and robust noise immunity are essential.
FAQ
What is the maximum capacitive load the LTC6702IDC#TRMPBF can drive reliably?
The LTC6702IDC#TRMPBF is specified to handle capacitive loads up to 10,000pF while maintaining stable operation and bounded propagation delay. This capability is validated across the full –40°C to +85°C temperature range and supports direct driving of LCD backlights, long PCB traces, or multiple logic inputs without external buffering. Performance data in Figure 6702 G11 confirms stable rise/fall times even at 10nF loads.
Does the LTC6702IDC#TRMPBF require external hysteresis resistors for noise immunity?
No, the LTC6702IDC#TRMPBF includes internal hysteresis of approximately 4mV, which desensitizes the comparator to input noise and eliminates the need for external positive feedback components in most applications. This feature simplifies design, reduces component count, and ensures consistent hysteresis across temperature. External hysteresis can be added only if greater than 4mV is required, using the circuit shown in Figure 6702 F01.
Can the LTC6702IDC#TRMPBF operate with input voltages below ground?
Yes, the LTC6702IDC#TRMPBF supports input voltages down to –0.1V relative to GND, enabling direct interface with low-side current-sense shunts and other sub-ground signals. Inputs driven further negative (to –0.1V) remain functional without damage, provided input current is limited to 10mA. This capability is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics section (Input Voltage Range parameter).
What is the guaranteed propagation delay specification for LTC6702IDC#TRMPBF over temperature?
The LTC6702IDC#TRMPBF guarantees a maximum propagation delay of 500ns over its full operating temperature range of –40°C to +85°C. This value is measured with 200mV input steps and 50mV overdrive, as defined in Note 7 of the datasheet. Typical delay is 450ns at 25°C, and performance curves (Figure 6702 G10) show minimal variation across supply voltage and temperature.
Is the exposed pad on the LTC6702IDC#TRMPBF package electrically connected, and how should it be handled?
Yes, the exposed pad (Pin 9) on the LTC6702IDC#TRMPBF's DFN package is electrically connected to GND and must be soldered to the PCB ground plane. This connection is mandatory for thermal performance (θJA = 102°C/W) and electrical stability. The datasheet explicitly states "EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB" in the Pin Configuration section and provides recommended solder pad dimensions on page 10.
LTC6702IDC#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-WFDFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- CMOS, Push-Pull, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±):
- 1.7V ~ 5.5V
- :
- 3.5mV @ 3V
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 32µA
- Current - Quiescent (Max):
- 70dB CMRR, 65dB PSRR
- CMRR, PSRR (Typ):
- 450ns
- Propagation Delay (Max):
- 7.2mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-DFN (2x2)
LTC6702IDC#TRMPBF FAQ
1.How can I place an order for LTC6702IDC#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6702IDC#TRMPBF 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 LTC6702IDC#TRMPBF reliable?
The price and inventory of LTC6702IDC#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6702IDC#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6702IDC#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6702IDC#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6702IDC#TRMPBF?
LTC6702IDC#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6702IDC#TRMPBF 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 LTC6702IDC#TRMPBF?
For technical support, including LTC6702IDC#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6702IDC#TRMPBF requirements.
6.How does Aetrix verify that LTC6702IDC#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6702IDC#TRMPBF 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 LTC6702IDC#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6702IDC#TRMPBF?
All LTC6702IDC#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6702IDC#TRMPBF, 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 LTC6702IDC#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6702IDC#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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