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Analog Devices Inc. LT1413CN8#PBF
- Part No.:
- LT1413CN8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1413CN8#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:415
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Product details
Overview
LT1413CN8#PBF from Analog Devices (formerly Linear Technology) is a dual, single-supply precision operational amplifier in an 8-lead plastic DIP (N8) package. It delivers 280 µV max input offset voltage, 0.8 nA max input offset current, 480 µA max supply current per amplifier, and 950 kHz gain-bandwidth product at 5V/0V operation - enabling high-accuracy signal conditioning in battery-powered instrumentation and sensor front-ends.
For engineers reviewing the LT1413CN8#PBF datasheet, LT1413CN8#PBF pinout, LT1413CN8#PBF application, or LT1413CN8#PBF equivalent, key selection considerations include its ground-sinking output capability (≤25 mV low-level swing), phase reversal protection for inputs down to –1.5 V, and guaranteed performance across –40°C to 85°C without pull-down resistors.
Technical Context
The LT1413CN8#PBF implements a proprietary input stage with integrated 400 Ω series resistors and dedicated phase reversal protection circuitry (Q21–Q28), enabling safe operation with inputs extending 5 V below ground while preventing output inversion during negative common-mode overdrive. Its dual-amplifier topology achieves 140 dB channel separation and >10 mA output drive capability at only 330 µA typical supply current per amplifier.
Designed specifically for 5V single-supply systems, it maintains full functionality across ±15 V operation with 100 dB PSRR and 101 dB CMRR at 0 V to 3.65 V common-mode range. The architecture supports rail-to-rail input (including ground) and near-ground output swing (25 mV typical low saturation voltage), eliminating need for external level-shifting or bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 280 µV max (guaranteed over temperature); enables <1 mV error in 100× gain stages without trimming |
| Supply Current per Amplifier | 480 µA max at 5V/0V; supports ultra-low-power battery operation with minimal self-heating |
| Gain-Bandwidth Product | 950 kHz (tested at fO ≤ 100 kHz); sufficient for anti-aliasing filters and DC-coupled sensor amplification |
| Output Low Voltage (ISINK = 1 mA) | 350 mV max; allows direct interfacing with logic inputs or ADC reference points near ground |
| Common-Mode Input Range | –0.3 V to 3.65 V at 5V/0V supply; accepts signals below ground without damage or phase reversal |
| Channel Separation | 140 dB min; prevents crosstalk in dual-channel instrumentation amplifier topologies |
| Input Offset Current | 0.8 nA max; permits use of ≥1 MΩ feedback networks without significant DC error |
Pinout & Package
LT1413CN8#PBF uses the 8-lead plastic DIP (N8) package, 0.300-inch wide body, with 0.100-inch lead pitch. Pin 1 is marked by a notch or dot; leads are tin-lead plated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | –IN A | Inverting input of amplifier A; protected against phase reversal down to –1.5 V |
| 2 | +IN A | Non-inverting input of amplifier A; includes 400 Ω series resistor for substrate fault protection |
| 3 | V– | Negative supply terminal; tied to ground in single-supply operation; supports –15 V in dual-supply mode |
| 4 | OUT A | Amplifier A output; sinks to ≤25 mV above ground with no load, ≤350 mV at 1 mA sink |
| 5 | OUT B | Amplifier B output; identical sinking/sourcing behavior to OUT A |
| 6 | +IN B | Non-inverting input of amplifier B; electrically isolated from +IN A with 140 dB channel separation |
| 7 | –IN B | Inverting input of amplifier B; shares same phase reversal protection as –IN A |
| 8 | V+ | Positive supply terminal; operates from 2.85 V to ±22 V; 5 V nominal for optimized low-cost grade specs |
Key Features
| Feature | Design Value |
|---|---|
| Phase reversal protection | Prevents output inversion when either input drops to –1.5 V (at 25°C), critical for servo stability |
| Input stage substrate protection | Integrated 400 Ω series resistors limit input current to safe levels even with –5 V applied to inputs |
| Ground-sinking output | Outputs drive within 25 mV of ground with no load - eliminates need for pull-down resistors in single-supply designs |
| Low-noise precision performance | 0.55 µVP-P (0.1–10 Hz) and 24 nV/√Hz @10 Hz enable microvolt-level strain gauge and bridge measurements |
| Dual-amplifier isolation | 140 dB channel separation minimizes inter-channel interference in instrumentation amplifier configurations |
Applications
| Strain Gauge Amplifiers | Single-Supply Instrumentation |
|---|---|
|
Use Scenario: Wheatstone bridge output amplification in load cells and pressure sensors operating from 5 V batteries. IC Role / Device Role / Timing Role: Dual op-amp configured as difference amplifier (AV = 1) and buffer, rejecting common-mode noise while preserving millivolt-level signals. Use Value: 0.8 nA max input offset current allows 1 MΩ bridge termination without added drift; 280 µV max VOS ensures <0.1% full-scale error in 100 mV span bridges. |
Use Scenario: Dual-channel signal conditioning in portable medical devices requiring isolated analog paths and low quiescent power. IC Role / Device Role / Timing Role: Two independent amplifiers used for simultaneous ECG lead amplification and reference voltage buffering. Use Value: 140 dB channel separation prevents cross-talk between differential leads; 480 µA max total supply current extends battery life beyond 100 hours on two AA cells. |
| Battery-Powered Data Loggers | Active Filter Stages |
|
Use Scenario: Signal acquisition front-end in environmental monitoring nodes powered by coin-cell or Li-ion batteries. IC Role / Device Role / Timing Role: Precision amplifier driving 12-bit SAR ADC input with rail-to-rail input and near-ground output swing. Use Value: Output swings to 25 mV above ground enables full utilization of 0–3.3 V ADC range; 330 µA typical IS supports >1-year operation on CR2032. |
Use Scenario: Second-order low-pass filtering in audio and sensor signal chains where phase linearity and DC accuracy are critical. IC Role / Device Role / Timing Role: Dual op-amp implementing Sallen-Key topology with matched internal gain blocks and low thermal drift. Use Value: 0.5 µV/°C max VOS drift prevents filter cutoff shift >0.02% per °C; 950 kHz GBW supports stable 100 kHz filter design with margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual, single-supply precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1013CN8#PBF | Higher 650 µV max VOS, 1.5× higher supply current (700 µA), no phase reversal protection | Lacks ground-sinking output and input-overvoltage protection; requires external pull-downs in single-supply use | Lower-cost legacy option where phase reversal risk is absent and offset budget allows ≥2× LT1413CN8#PBF's spec |
| OP2177ARZ-REEL7 | Lower 25 µV max VOS, 1.2 mA supply current, rail-to-rail output (not input), no phase reversal protection | Cannot accept inputs below ground; unsuitable for bridge circuits with negative common-mode excitation | Preferred for ultra-precision DC applications with clean supplies; not a functional substitute where input goes below ground |
Compared with LT1013CN8#PBF and OP2177ARZ-REEL7, the LT1413CN8#PBF uniquely balances low cost, single-supply robustness (input below ground, phase reversal immunity), and precision (280 µV VOS) - making it irreplaceable in battery-powered bridge and instrumentation amplifier designs where fault tolerance and ground-referenced output are mandatory.
Availability
LT1413CN8#PBF is available at Aetrix Electronics and suitable for strain gauge amplifiers, battery-powered data loggers, and single-supply instrumentation systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LT1413CN8#PBF 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 all Linear op amp products, including legacy precision amplifiers.
The LT1413CN8#PBF belongs to Linear Technology's dual, single-supply precision op amp family, engineered specifically for cost-sensitive, battery-operated instrumentation where ground-referenced operation and input fault tolerance are essential.
FAQ
What is the maximum input voltage below ground that LT1413CN8#PBF can safely tolerate?
The LT1413CN8#PBF features integrated 400 Ω series input resistors that protect the substrate from destructive current flow, allowing inputs to be driven up to –5 V relative to V– (ground in single-supply mode) without damage. Phase reversal is suppressed down to –1.5 V at 25°C, verified per the LT1413CN8#PBF datasheet Figure TA23.
Does LT1413CN8#PBF require external pull-down resistors for single-supply operation?
No. The LT1413CN8#PBF output actively sinks to within 25 mV of ground with no load and 350 mV at 1 mA sink current, eliminating the need for external pull-down resistors. This is explicitly confirmed in the "FEATURE" section of the LT1413CN8#PBF datasheet: "No Pull-Down Resistors Needed."
What is the guaranteed input offset voltage specification for LT1413CN8#PBF over temperature?
The LT1413CN8#PBF guarantees ≤480 µV maximum input offset voltage across the full –40°C to +85°C operating range, as specified in the "ELECTRICAL CHARACTERISTICS" table under "LT1413CN8/S8" conditions with G-grade notation. This includes both initial offset and drift contribution.
Can LT1413CN8#PBF be used as a comparator with TTL-compatible output?
Yes. The LT1413CN8#PBF's single-supply operation, fast slew rate (0.3 V/µs), and output swing compatible with TTL logic thresholds (0–0.8 V low, 2.0–5 V high) make it suitable as a precision comparator. Response time data is shown in Figures TA24 and TA25 of the LT1413CN8#PBF datasheet for 2–10 mV overdrives.
What is the thermal resistance (θJA) of the LT1413CN8#PBF in its N8 package?
The LT1413CN8#PBF in the 8-lead plastic DIP (N8) package has a junction-to-ambient thermal resistance (θJA) of 130°C/W, as documented in the "PACKAGE/ORDER INFORMATION" section of the datasheet. This value assumes standard JEDEC 2S2P board conditions.
LT1413CN8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- 950 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 8 nA
- Voltage - Input Offset:
- 90 µV
- Current - Supply:
- 350µA (x2 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.85 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LT1413CN8#PBF FAQ
1.How can I place an order for LT1413CN8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1413CN8#PBF 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 LT1413CN8#PBF reliable?
The price and inventory of LT1413CN8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1413CN8#PBF is usually 5 days.
3.What payment methods are accepted for LT1413CN8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1413CN8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1413CN8#PBF?
LT1413CN8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1413CN8#PBF 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 LT1413CN8#PBF?
For technical support, including LT1413CN8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1413CN8#PBF requirements.
6.How does Aetrix verify that LT1413CN8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1413CN8#PBF 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 LT1413CN8#PBF meets industry standards.
7.What is the process for return or replacement of LT1413CN8#PBF?
All LT1413CN8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1413CN8#PBF, 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 LT1413CN8#PBF part is unused and in its original packaging.
Return procedure for LT1413CN8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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