My Inquiry
My Account
Analog Devices Inc. LT1712IGN#TRPBF
- Part No.:
- LT1712IGN#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LT1712IGN#TRPBF.pdf
- Description:
- IC COMPARATOR 2 W/LATCH 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:446
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT1712IGN#TRPBF from Analog Devices (formerly Linear Technology) is a dual ultrafast rail-to-rail comparator with 4.5ns propagation delay at 20mV overdrive, complementary TTL/CMOS-compatible outputs, and independent latch enable inputs per channel. It operates from single 2.4V–7V or dual ±2.4V–±6V supplies and supports high-speed applications including crystal oscillator circuits, pulse width modulation, and A/D converter sampling triggers.
For engineers reviewing the LT1712IGN#TRPBF datasheet, LT1712IGN#TRPBF pinout, LT1712IGN#TRPBF application, or LT1712IGN#TRPBF equivalent, key selection considerations include differential propagation delay (≤1.5ns), latch setup time (1ns), input common mode range extending 100mV beyond rails, output drive capability (±10mA), and guaranteed operation across –40°C to +85°C.
Technical Context
The LT1712IGN#TRPBF integrates two independent high-speed comparators in a single 16-pin narrow SSOP package, each featuring rail-to-rail inputs, matched complementary outputs (Q and Q̅), and dedicated latch enable pins (LE A and LE B). Its internal architecture avoids phase reversal when inputs exceed supply rails and includes built-in latch hysteresis (~100mV) for noise immunity on latch signals.
Designed for precision timing-critical systems, it delivers 11psRMS output jitter at 30MHz and supports maximum toggle frequency up to 100MHz. The device maintains specified performance under ±5V, +5V/0V, and +2.7V/0V supply configurations, with input offset voltage drift of only 10µV/°C and CMRR ≥58dB over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 4.5ns typical at 20mV overdrive - enables sub-5ns decision timing in high-speed sampling and trigger circuits |
| Input Common Mode Range | –5.1V to +5.1V on ±5V supplies - allows direct interfacing with signals exceeding rails by 100mV without phase reversal |
| Output Drive Capability | Sinks 10mA to within 0.5V of GND / sources 10mA to within 0.7V of V+ - directly drives TTL/CMOS logic without external buffers |
| Latch Setup Time | 1ns - supports tight timing alignment between data and latch assertion in synchronous acquisition systems |
| Supply Voltage Range | Single: 2.4V–7V; Dual: ±2.4V–±6V - compatible with 3V, 5V, and ±5V system rails without level-shifting circuitry |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and test equipment environments |
| Output Timing Jitter | 11psRMS at 30MHz - ensures stable edge placement in clock recovery and high-fidelity signal discrimination |
Pinout & Package
LT1712IGN#TRPBF is housed in a 16-lead narrow plastic SSOP (GN) package, 0.150" wide, with exposed pad not electrically connected. Pin functions are validated per Linear Technology's official GN16 package drawing (LTC DWG #05-08-1641).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | Inverting Input A / Inverting Input B | Differential input terminals for Channel A and Channel B; rail-to-rail capable, tolerate 100mV beyond supply rails |
| 2, 7 | Noninverting Input A / Noninverting Input B | Differential input terminals for Channel A and Channel B; support common-mode voltages down to –5.1V on ±5V supplies |
| 3, 6 | Negative Supply (V–) | Shared negative rail connection; pins must be externally shorted for optimal noise rejection and shielding |
| 4, 5 | Positive Supply (V+) | Shared positive rail connection; pins must be externally shorted to reduce supply impedance and improve PSRR |
| 9, 16 | Latch Enable B / Latch Enable A | Active-high TTL/CMOS-compatible latch control; built-in ~100mV hysteresis prevents false triggering on slow/noisy edges |
| 10, 15 | GND (B Channel / A Channel) | Separate ground returns for each comparator channel; both typically tied to same system ground plane |
| 11, 12 | QB, Q̅B | Complementary outputs for Channel B; rail-to-rail swing, capable of ±10mA drive into resistive loads |
| 13, 14 | Q̅A, QA | Complementary outputs for Channel A; fully matched to Channel B for differential timing-critical applications |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Supports input voltages from –0.1V to V+ + 0.1V on single supply - eliminates need for external level shifters in mixed-supply systems |
| Independent per-channel latches | Enables asynchronous capture of two separate high-speed events with <1ns setup requirement - critical for dual-edge sampling |
| Matched complementary outputs | Q/Q̅ pair delay mismatch ≤1.5ns - preserves signal integrity in LVDS-like differential receivers and window comparator topologies |
| No phase reversal under overdrive | Continues correct comparison behavior even when inputs exceed rails by >100mV - improves robustness in noisy or transient-prone environments |
| Guaranteed industrial temperature operation | Full electrical specs validated from –40°C to +85°C - suitable for automotive under-hood, industrial PLC, and ATE applications |
Applications
| Crystal Oscillator Circuits | High-Speed Sampling Circuits |
|---|---|
Use Scenario: Voltage-tunable crystal oscillator generating 4× NTSC subcarrier (14.31818MHz) with ±240ppm tuning range via 0–5V control voltage. IC Role / Device Role / Timing Role: LT1712IGN#TRPBF serves as series-resonant oscillator core with rail-to-rail inputs enabling varactor biasing across full supply range. Use Value: Eliminates external op-amp buffer stages; leverages 4.5ns propagation delay and low input bias current (<3µA) to sustain stable oscillation with minimal phase noise. |
Use Scenario: Edge-triggered sampling of analog waveforms in digitizers and oscilloscopes operating at >100MSPS effective rates. IC Role / Device Role / Timing Role: LT1712IGN#TRPBF acts as precision zero-crossing detector and strobe generator, synchronizing ADC aperture clocks to input signal transitions. Use Value: 11psRMS jitter and ≤1.5ns differential delay ensure sub-picosecond timing accuracy, reducing aperture uncertainty and improving ENOB. |
| Pulse Width Modulators | Line Receivers |
Use Scenario: High-frequency PWM generation in switching regulators where duty cycle resolution below 1ns is required for fine-grained output voltage control. IC Role / Device Role / Timing Role: LT1712IGN#TRPBF compares ramp waveform against error voltage, with latch enable synchronized to switching node transitions. Use Value: 4.5ns propagation delay and 1ns latch setup time enable <5ns minimum pulse width, supporting >200MHz switching frequencies. |
Use Scenario: Full-duplex 75Mbaud differential line receiver over twisted-pair cable with ±3V ground potential difference tolerance. IC Role / Device Role / Timing Role: LT1712IGN#TRPBF implements bidirectional signal detection using resistor networks that match 120Ω characteristic impedance. Use Value: Rail-to-rail input range extending 100mV beyond rails allows reliable reception despite large common-mode offsets; complementary outputs interface directly to FPGA I/O banks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1719CS8#TRPBF | Single-channel, 4.5ns comparator with rail-to-rail outputs and integrated level shifter; 4mA supply current vs 22mA per channel for LT1712IGN#TRPBF | Optimized for single-ended 3V/5V systems requiring level translation; lacks dual-channel and independent latch functionality | Select LT1719CS8#TRPBF when space-constrained PCBs require single comparator with lower power and level-shifting capability |
| LT1720CGN#TRPBF | Dual 4.5ns comparator with rail-to-rail outputs but no latch enable pins; 120°C/W θJA vs 120°C/W for LT1712IGN#TRPBF; identical GN16 package | Targeted at latch-free high-speed threshold detection; shares same footprint but requires external latch logic for data retention | Choose LT1720CGN#TRPBF when latch functionality is implemented digitally or unnecessary, prioritizing identical layout compatibility |
Compared with LT1719CS8#TRPBF and LT1720CGN#TRPBF, the LT1712IGN#TRPBF uniquely combines dual-channel operation, per-channel latching, and rail-to-rail inputs/outputs in a single industrial-grade package-making it irreplaceable in synchronous dual-event capture and self-contained oscillator designs.
Availability
LT1712IGN#TRPBF is available at Aetrix Electronics and suitable for high-speed automatic test equipment, crystal oscillator modules, and pulse width modulator feedback loops requiring stable component supply with traceable sourcing and long-term lifecycle support.
Supply support for LT1712IGN#TRPBF 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 full technical and manufacturing continuity for legacy Linear products, including rigorous qualification and reliability testing per MIL-STD-883 and JESD47 standards.
The LT1712IGN#TRPBF belongs to Linear Technology's UltraFast™ comparator family, engineered specifically for timing-critical applications demanding sub-5ns propagation delay, rail-to-rail signal handling, and deterministic latch behavior in industrial and test instrumentation.
FAQ
What is the maximum supply voltage rating for LT1712IGN#TRPBF?
The LT1712IGN#TRPBF has an absolute maximum supply voltage rating of 12.6V between V+ and V–, with V+ to GND rated at 12.6V and V– to GND rated from –10V to 0.3V. For reliable operation, the recommended supply range is 2.4V–7V single-ended or ±2.4V–±6V dual-ended. Exceeding these limits risks permanent damage, especially under transient conditions.
Does LT1712IGN#TRPBF support single-supply operation?
Yes, LT1712IGN#TRPBF fully supports single-supply operation from 2.4V to 7V with V– connected to GND. Its rail-to-rail input stage accepts common-mode voltages from –0.1V to V+ + 0.1V, and outputs swing within 0.5V of GND (low) and 0.7V of V+ (high) while sinking or sourcing 10mA - enabling direct interface with 3V or 5V logic families without level shifters.
How does the latch function work on LT1712IGN#TRPBF?
The LT1712IGN#TRPBF features two independent latch enable inputs (Pin 9 for Channel B, Pin 16 for Channel A). When either latch pin is driven high, the corresponding comparator's output state is held until the latch pin returns low. Each latch includes ~100mV hysteresis to reject noise, and requires only 1ns setup time. Latch propagation delay is 5ns, ensuring deterministic data capture in synchronous systems.
Can LT1712IGN#TRPBF inputs safely exceed the supply rails?
Yes - the LT1712IGN#TRPBF inputs are designed to operate 100mV beyond both supply rails without phase reversal or damage. On ±5V supplies, the input common mode range is specified from –5.1V to +5.1V; on +5V/0V supplies, it extends from –0.1V to +5.1V. Schottky clamp diodes prevent substrate conduction during overdrive, enabling robust operation in noisy or mismatched signal environments.
What is the thermal resistance (θJA) of the LT1712IGN#TRPBF package?
The LT1712IGN#TRPBF in its 16-lead narrow SSOP (GN) package has a junction-to-ambient thermal resistance (θJA) of 120°C/W, measured under standard JEDEC conditions (2s2p board, 1-inch² copper pad). This value assumes proper PCB layout with adequate copper pour and thermal vias. At maximum rated load and 85°C ambient, junction temperature remains below the 150°C limit when supply current is kept within datasheet specifications.
LT1712IGN#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Series:
- UltraFast™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- with Latch
- Number of Elements:
- 2
- Output Type:
- CMOS, Complementary, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±):
- 2.4V ~ 12V, ±2.4V ~ 6V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 5µA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 22mA
- Current - Quiescent (Max):
- 75dB CMRR, 85dB PSRR
- CMRR, PSRR (Typ):
- 6ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 16-SSOP
LT1712IGN#TRPBF FAQ
1.How can I place an order for LT1712IGN#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1712IGN#TRPBF 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 LT1712IGN#TRPBF reliable?
The price and inventory of LT1712IGN#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1712IGN#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1712IGN#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1712IGN#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1712IGN#TRPBF?
LT1712IGN#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1712IGN#TRPBF 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 LT1712IGN#TRPBF?
For technical support, including LT1712IGN#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1712IGN#TRPBF requirements.
6.How does Aetrix verify that LT1712IGN#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1712IGN#TRPBF 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 LT1712IGN#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1712IGN#TRPBF?
All LT1712IGN#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1712IGN#TRPBF, 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 LT1712IGN#TRPBF part is unused and in its original packaging.
Return procedure for LT1712IGN#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1712IGN#TRPBF Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
