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Analog Devices Inc. LT1037IS8#PBF
- Part No.:
- LT1037IS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1037IS8#PBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:122
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Product details
Overview
LT1037IS8#PBF from Analog Devices (formerly Linear Technology) is a decompensated, high-speed, low-noise precision operational amplifier in an 8-lead plastic SOIC package. It delivers 60MHz gain bandwidth, 11V/µs slew rate, 3.8nV/√Hz input voltage noise at 1kHz, 25µV max input offset voltage, and 117dB min CMRR - optimized for audio preamplifiers, strain gauge signal conditioning, and sine wave generators requiring microvolt-level accuracy.
For engineers reviewing the LT1037IS8#PBF datasheet, LT1037IS8#PBF pinout, LT1037IS8#PBF application, or LT1037IS8#PBF equivalent, key selection criteria include guaranteed 11V/µs slew rate at AVCL ≥ 5, 0.1Hz–10Hz noise of 60nVP-P, ±40°C to +85°C industrial temperature range, and compatibility with OP-37/5534 sockets without external compensation.
Technical Context
The LT1037IS8#PBF uses a decompensated internal architecture stable only for closed-loop gains ≥ 5, enabling its 60MHz gain-bandwidth product. Its input stage operates at 120µA bias current to achieve ultra-low voltage noise while maintaining a 120Hz 1/f current noise corner.
It features dual VOS trim pins for precise nulling without degrading drift performance, and includes back-to-back diode input protection (no series resistors) - requiring external current limiting if differential input exceeds ±0.7V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 60MHz at AVCL ≥ 5 - enables high-precision amplification up to 5Hz with 0.01% gain error at G = 1000. |
| Slew Rate | 11V/µs minimum - supports fast transient response in audio and test equipment signal paths. |
| Input Voltage Noise | 3.8nV/√Hz at 1kHz - lower than most precision op amps, critical for microphone and phono preamp front-ends. |
| Input Offset Voltage | 25µV maximum - ensures DC accuracy in bridge sensor interfaces and threshold detection circuits. |
| CMRR | 117dB minimum - rejects common-mode interference in noisy industrial environments. |
| Operating Temperature | –40°C to +85°C - qualified for industrial embedded systems and instrumentation. |
| Supply Voltage | ±22V absolute max - supports wide dynamic range signal processing with ±15V nominal rails. |
Pinout & Package
LT1037IS8#PBF is housed in an 8-lead plastic small-outline integrated circuit (SOIC) package (S8), 0.150-inch body width, RoHS-compliant, with standard JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | VOS Trim | Connects to 10kΩ potentiometer wiper for offset nulling; trimming preserves low drift performance. |
| 2 | Inverting Input (–IN) | Differential input node; protected by back-to-back diodes - requires external current limiting above ±0.7V differential. |
| 3 | Non-inverting Input (+IN) | Differential input node; high common-mode rejection (117dB min) enables accurate DC-coupled sensing. |
| 4 | V– | Negative supply rail connection; must be decoupled locally to minimize noise coupling. |
| 5 | NC | No connect - internally unconnected; no routing or grounding required. |
| 6 | Output (OUT) | Capable of ±10.5V swing into 600Ω load - drives low-impedance loads like tape heads and active filters. |
| 7 | V+ | Positive supply rail connection; thermal resistance θJA = 190°C/W supports operation up to 85°C ambient. |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise corner | 2Hz - minimizes low-frequency drift in DC-coupled audio and sensor amplifiers. |
| High open-loop gain | 7 million min into 2kΩ - ensures <0.01% gain error at G = 1000 up to 5Hz. |
| Thermal stability | 0.6µV/°C max offset drift - maintains calibration integrity across industrial temperature ranges. |
| Output drive capability | ±33mA peak sourcing/sinking - directly drives 300Ω loads without external buffers. |
| Power supply rejection | 106dB min - suppresses ripple and noise from shared power rails in mixed-signal systems. |
Applications
| Microphone Preamplifier | Sine Wave Generator |
|---|---|
Use Scenario: Low-noise amplification of electret condenser microphone output in studio-grade audio interfaces. IC Role / Device Role / Timing Role: First-stage transimpedance and gain amplifier with DC-coupled feedback network. Use Value: 3.8nV/√Hz input noise and 60nVP-P 0.1Hz–10Hz noise enable >120dB SNR in 20Hz–20kHz band. | Use Scenario: Precision 1kHz sine wave generation with <0.0025% THD for calibration and test equipment. IC Role / Device Role / Timing Role: Core gain element in Wien-bridge oscillator with amplitude stabilization loop. Use Value: 60MHz GBW and 11V/µs slew rate ensure minimal phase distortion and clean zero-crossings. |
| Strain Gauge Amplifier | Tape Head Preamplifier |
Use Scenario: Signal conditioning of millivolt-level Wheatstone bridge outputs in load cells and pressure sensors. IC Role / Device Role / Timing Role: Instrumentation-grade difference amplifier with bridge excitation and gain/zero trim. Use Value: 25µV max VOS and 0.6µV/°C drift allow sub-10ppm measurement accuracy over –40°C to +85°C. | Use Scenario: High-fidelity playback amplification of magnetic tape head signals with extended frequency response. IC Role / Device Role / Timing Role: Low-distortion, wideband voltage amplifier with RIAA equalization network. Use Value: 117dB CMRR and 130dB PSRR reject common-mode hum and power supply noise in analog playback chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1127CS8#PBF | Same decompensated architecture, 50MHz GBW, 8V/µs slew rate, 1.8nV/√Hz noise at 1kHz. | Lower noise but reduced speed - better for ultra-low-noise DC-coupled sensors where bandwidth <40MHz suffices. | Select when 1.8nV/√Hz noise outweighs need for 60MHz bandwidth; not drop-in due to different gain stability requirements. |
| OPA1612AIDR | Unity-gain stable, 45MHz GBW, 27V/µs slew rate, 1.1nV/√Hz noise, dual-channel. | Higher speed and lower noise, but unity-gain stable - requires redesign of compensation network for AVCL ≥ 5 use cases. | Choose for new designs needing dual-channel, rail-to-rail output, or unity-gain flexibility; not pin-compatible with LT1037IS8#PBF. |
Compared with LT1037IS8#PBF, LT1127CS8#PBF trades 10MHz bandwidth for 2.7× lower voltage noise, while OPA1612AIDR offers dual-channel operation and superior noise but demands full circuit revalidation for stability and layout.
Availability
LT1037IS8#PBF is available at Aetrix Electronics and suitable for industrial instrumentation, audio equipment manufacturing, and test & measurement system integration requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LT1037IS8#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 product support, documentation, and manufacturing continuity for legacy Linear op amp families.
The LT1037 series was designed specifically for high-accuracy, low-noise signal conditioning in demanding analog applications - bridging the performance gap between general-purpose and ultra-precision op amps.
FAQ
What is the minimum closed-loop gain required for stable operation of the LT1037IS8#PBF?
The LT1037IS8#PBF is decompensated and requires a minimum closed-loop gain of 5 (AVCL ≥ 5) for stable operation. Attempting unity-gain or G = 2 configurations will cause oscillation. This is explicitly defined in the datasheet's "Gain Bandwidth Product" and "Phase Margin vs Temperature" plots, where stability is verified only for AVCL ≥ 5 with CL = 100pF.
Does the LT1037IS8#PBF have internal ESD protection on its inputs?
The LT1037IS8#PBF features back-to-back diodes on both inputs for electrostatic discharge protection, but no series current-limiting resistors - preserving low noise performance. Per Absolute Maximum Ratings, differential input voltage must be limited to ±0.7V; beyond that, external current limiting is mandatory to avoid exceeding the ±25mA differential input current rating.
Can the LT1037IS8#PBF replace an OP-37 in an existing design without layout changes?
Yes - the LT1037IS8#PBF is pin-compatible with the OP-37 in the 8-lead SOIC (S8) package and can be socketed directly into OP-37 footprints without PCB modification. Both share identical pinout (V+, –IN, +IN, V–, NC, OUT, VOS TRIM, VOS TRIM), and the LT1037IS8#PBF's higher slew rate (11V/µs vs 5V/µs) and wider bandwidth improve transient response without compromising stability in G ≥ 5 circuits.
What is the typical 0.1Hz to 10Hz input voltage noise of the LT1037IS8#PBF?
The typical 0.1Hz to 10Hz input voltage noise of the LT1037IS8#PBF is 60nVP-P, as confirmed in the "Typical Applications" section and "Typical Performance Characteristics" plot G04. This value is measured under standard conditions (VS = ±15V, TA = 25°C) using the specified test circuit (Figure 5a) and correlates strongly with the 3.8nV/√Hz density at 1kHz.
Is the LT1037IS8#PBF suitable for driving a 300Ω load to ±10V?
Yes - the LT1037IS8#PBF can drive a 300Ω load to ±10V, as demonstrated in the "Precision Amplifier Drives 300Ω Load to ±10V" application circuit (TA05). Output swing is specified as ±10.5V into 600Ω and ±10V into 300Ω at ±15V supplies, with sufficient output current (±33mA peak) to maintain linearity and low distortion under load.
LT1037IS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 15 nA
- Voltage - Input Offset:
- 20 µV
- Current - Supply:
- -
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1037IS8#PBF FAQ
1.How can I place an order for LT1037IS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1037IS8#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 LT1037IS8#PBF reliable?
The price and inventory of LT1037IS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1037IS8#PBF is usually 5 days.
3.What payment methods are accepted for LT1037IS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1037IS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1037IS8#PBF?
LT1037IS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1037IS8#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 LT1037IS8#PBF?
For technical support, including LT1037IS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1037IS8#PBF requirements.
6.How does Aetrix verify that LT1037IS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1037IS8#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 LT1037IS8#PBF meets industry standards.
7.What is the process for return or replacement of LT1037IS8#PBF?
All LT1037IS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1037IS8#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 LT1037IS8#PBF part is unused and in its original packaging.
Return procedure for LT1037IS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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