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Analog Devices Inc. LT1037ACN8#PBF
- Part No.:
- LT1037ACN8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1037ACN8#PBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,780
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Product details
Overview
LT1037ACN8#PBF from Analog Devices (formerly Linear Technology) is a precision, decompensated, low-noise operational amplifier in an 8-lead PDIP package. It delivers 60MHz gain bandwidth, 11V/µs slew rate, 4.5nV/√Hz @10Hz input voltage noise, 25µV max input offset voltage, and 117dB min CMRR - optimized for high-fidelity audio gain stages, strain gauge amplifiers, and sine wave generators requiring microvolt-level accuracy.
For engineers reviewing the LT1037ACN8#PBF datasheet, LT1037ACN8#PBF pinout, LT1037ACN8#PBF application, or LT1037ACN8#PBF equivalent, key selection criteria include guaranteed 1kHz noise ≤3.8nV/√Hz, stable operation at closed-loop gains ≥5, ±22V absolute max supply, and compatibility with OP-07/OP-27 sockets without external compensation.
Technical Context
The LT1037ACN8#PBF uses a decompensated architecture enabling 60MHz gain bandwidth at AVCL ≥5, with internal compensation omitted to maximize speed while maintaining phase margin >60° across temperature. Its input stage operates at 120µA bias current - elevated versus standard op amps - to minimize voltage noise at the expense of higher current noise (0.6pA/√Hz @1kHz).
This architecture supports precision DC-coupled applications where wideband noise performance (2.5nV/√Hz wideband, 60nVP-P 0.1Hz–10Hz), ultra-low drift (0.6µV/°C max), and high open-loop gain (7M min into 2kΩ) are critical - such as infrared detector preamplifiers and phono/tape head signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 60MHz at AVCL ≥5 - enables accurate closed-loop amplification up to 5Hz with 0.01% gain error at G = 1000. |
| Slew Rate | 11V/µs min - supports fast transient response in audio and test equipment signal paths without slewing distortion. |
| Voltage Noise Density | 4.5nV/√Hz @10Hz - ensures minimal contribution to system noise floor in low-frequency precision measurement. |
| Input Offset Voltage | 25µV max - enables direct-coupled microvolt-threshold detection without external nulling in most cases. |
| CMRR | 117dB min - rejects common-mode interference in bridge-based sensor interfaces like strain gauges. |
| Supply Voltage Range | ±22V absolute max - accommodates industrial ±15V rails with margin for transients and ripple. |
| Operating Temperature | 0°C to +70°C - validated for commercial-grade embedded instrumentation and audio systems. |
Pinout & Package
LT1037ACN8#PBF is housed in an 8-lead plastic dual in-line package (PDIP, N8), 0.300" wide, with standard through-hole mounting and JEDEC MS-001 compliant footprint. Pin 1 is bottom-left corner when notch faces up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOS TRIM | Connects to one end of 10kΩ potentiometer for offset voltage adjustment; does not degrade drift if trimmed per spec. |
| 2 | –IN | Inverting input terminal; high-impedance node sensitive to layout-induced thermoelectric EMFs. |
| 3 | +IN | Non-inverting input terminal; matched to Pin 2 for optimal CMRR and offset stability. |
| 4 | V– | Negative supply rail connection; must be decoupled locally to suppress PSRR degradation above 10kHz. |
| 5 | NC | No connect - internally unconnected; leave floating or grounded per PCB layout best practices. |
| 6 | OUT | Amplifier output; capable of ±10.5V swing into 600Ω load with <0.0025% THD in sine generator applications. |
| 7 | V+ | Positive supply rail connection; requires local 0.1µF ceramic + 10µF tantalum decoupling. |
| 8 | VOS TRIM | Second terminal of offset trim network; completes 3-terminal nulling configuration with Pin 1 and wiper. |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise corner | 2Hz - minimizes low-frequency noise impact in DC-coupled sensor front-ends and audio preamps. |
| High open-loop gain | 7 million min into 2kΩ - ensures <0.01% gain error at G = 1000 up to 5Hz, exceeding typical precision op amps. |
| Thermal drift control | 0.6µV/°C max - maintains calibration integrity over ambient temperature swings in lab-grade instruments. |
| Input protection diodes | Back-to-back diodes without current-limiting resistors - preserves low-noise performance but requires external differential voltage limiting to ±0.7V. |
| Socket compatibility | Direct replacement for OP-07, OP-27, OP-37, and 5534 - simplifies upgrade paths in legacy analog designs. |
Applications
| Strain Gauge Amplifiers | Sine Wave Generators |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metal foil or semiconductor strain gauges in load cells and pressure sensors. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with ultra-low offset drift and high CMRR to reject bridge excitation noise and thermal EMFs. Use Value: Enables sub-10µε resolution without recalibration over 0°C–70°C, leveraging 25µV offset and 0.6µV/°C drift specs. | Use Scenario: Building low-distortion 1kHz sine wave sources for audio testing and calibration using Wien bridge topology. IC Role / Device Role / Timing Role: Core gain element in feedback loop with <0.0025% THD and <0.0001% noise floor at ±8V output. Use Value: Achieves 1.000kHz ±0.4% frequency accuracy and ultralow harmonic distortion via 60MHz GBW and 11V/µs slew rate. |
| Infrared Detector Preamplifiers | Phono & Tape Head Amplifiers |
Use Scenario: Amplifying low-current, high-impedance outputs from HgCdTe photoconductive IR detectors in spectroscopy systems. IC Role / Device Role / Timing Role: Transimpedance amplifier with low input bias current (±15nA max) and 60nVP-P 0.1Hz–10Hz noise for weak-signal recovery. Use Value: Preserves signal-to-noise ratio in chopper-synchronized demodulation by minimizing 1/f voltage noise contribution. | Use Scenario: High-fidelity RIAA-equalized amplification of magnetic phono cartridge signals (5mV output) and tape head playback signals. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate gain block handling 20kHz audio bandwidth with minimal intermodulation distortion. Use Value: Delivers <0.0025% THD at 1kHz and flat 20Hz–20kHz response using 4.5nV/√Hz noise density and 11V/µs slew rate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1126CN8#PBF | Dual-channel, same decompensated architecture; 50MHz GBW, 10V/µs slew rate, 1.8nV/√Hz @1kHz noise. | Higher channel count but lower speed/noise performance; requires separate power routing for dual use. | Select when dual-channel functionality is needed and 60MHz GBW is not mandatory. |
| OP27GPZ | Single-channel, compensated; 8MHz GBW, 2.8V/µs slew rate, 3.5nV/√Hz @10Hz noise, 10µV max VOS. | Lower speed and wider bandwidth trade-off; better for unity-gain stable applications below 1MHz. | Select when stability at AVCL = 1 is required and 60MHz bandwidth is unnecessary. |
Compared with LT1037ACN8#PBF, LT1126CN8#PBF offers dual-channel integration at reduced speed, while OP27GPZ provides superior offset voltage and unity-gain stability at the cost of bandwidth and slew rate - making LT1037ACN8#PBF optimal for high-speed, high-precision closed-loop gain ≥5 applications.
Availability
LT1037ACN8#PBF is available at Aetrix Electronics and suitable for strain gauge amplifiers, sine wave generators, infrared detector preamplifiers, and phono/tape head amplifiers requiring stable component supply across commercial temperature ranges.
Supply support for LT1037ACN8#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 its precision analog portfolio, renowned for benchmark low-noise and high-speed op amps used in test equipment, medical devices, and aerospace systems.
The LT1037 series was designed specifically for applications demanding both ultralow noise and high speed - bridging the gap between traditional precision op amps and high-speed types without sacrificing DC accuracy.
FAQ
What is the minimum closed-loop gain required for stable operation of the LT1037ACN8#PBF?
The LT1037ACN8#PBF is decompensated and requires a minimum closed-loop gain of 5 for stable operation. This is explicitly specified in the datasheet's Electrical Characteristics table under Slew Rate and Gain Bandwidth Product conditions. Operating at AVCL < 5 risks oscillation due to insufficient phase margin, especially with capacitive loads or long traces.
Can the LT1037ACN8#PBF replace an OP-27 in an existing design without layout changes?
Yes, the LT1037ACN8#PBF can directly replace an OP-27 in most socketed designs without PCB modifications. The pinout is identical (8-pin DIP), and the LT1037ACN8#PBF operates without external compensation components. However, verify that the application's closed-loop gain meets the ≥5 requirement and that supply decoupling matches LT1037ACN8#PBF's higher slew rate demands.
What is the guaranteed input voltage noise density of the LT1037ACN8#PBF at 1kHz?
The LT1037ACN8#PBF is guaranteed to deliver ≤3.8nV/√Hz input voltage noise density at 1kHz, as stated in the "FEATURES" section and confirmed in the Electrical Characteristics table under the LT1037AC/AM column. This value is tested and specified across the full 0°C to +70°C operating range.
Does the LT1037ACN8#PBF have internal offset nulling capability?
No, the LT1037ACN8#PBF does not include internal offset nulling. It provides two dedicated pins (Pins 1 and 8) for external 10kΩ potentiometer connection to adjust input offset voltage. The datasheet confirms this in the "Offset Voltage Adjustment" section, specifying that trimming does not degrade drift beyond (VOS/300)µV/°C.
What is the maximum output voltage swing of the LT1037ACN8#PBF into a 600Ω load?
The LT1037ACN8#PBF guarantees a minimum output voltage swing of ±10.5V into a 600Ω load at ±15V supplies, as specified in the Electrical Characteristics table under "VOUT Maximum Output Voltage Swing." This enables full-scale signal delivery in line-driver and test equipment applications without clipping.
LT1037ACN8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 15V/µs
- Gain Bandwidth Product:
- 60 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 nA
- Voltage - Input Offset:
- 10 µV
- Current - Supply:
- -
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LT1037ACN8#PBF FAQ
1.How can I place an order for LT1037ACN8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1037ACN8#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 LT1037ACN8#PBF reliable?
The price and inventory of LT1037ACN8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1037ACN8#PBF is usually 5 days.
3.What payment methods are accepted for LT1037ACN8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1037ACN8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1037ACN8#PBF?
LT1037ACN8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1037ACN8#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 LT1037ACN8#PBF?
For technical support, including LT1037ACN8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1037ACN8#PBF requirements.
6.How does Aetrix verify that LT1037ACN8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1037ACN8#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 LT1037ACN8#PBF meets industry standards.
7.What is the process for return or replacement of LT1037ACN8#PBF?
All LT1037ACN8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1037ACN8#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 LT1037ACN8#PBF part is unused and in its original packaging.
Return procedure for LT1037ACN8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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