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Analog Devices Inc. LT1007IS8
- Part No.:
- LT1007IS8
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1007IS8.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,233
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Product details
Overview
LT1007IS8 from Analog Devices (formerly Linear Technology) is a precision low-noise operational amplifier in an 8-lead plastic SOIC package, designed for high-fidelity signal conditioning. It delivers guaranteed 4.5nV/√Hz input voltage noise at 10Hz, 25µV max input offset voltage, and 0.6µV/°C max offset drift - enabling microvolt-level accuracy in strain gauge amplifiers and audio preamplifiers.
For engineers reviewing the LT1007IS8 datasheet, LT1007IS8 pinout, LT1007IS8 application, or LT1007IS8 equivalent, this page provides verified specifications, thermal stability data, noise performance context, and real-world design guidance for low-drift, low-noise analog front-ends in industrial sensing and audio systems.
Technical Context
The LT1007IS8 uses a high-bias-input-stage architecture (120µA) to achieve ultra-low voltage noise while maintaining 1/f corner at 2Hz. Its open-loop gain exceeds 7 million into 2kΩ, supporting stable DC-coupled precision gain stages without external compensation.
Unlike the decompensated LT1037, the LT1007IS8 is unity-gain stable with 8MHz gain-bandwidth product and 1.7V/µs slew rate - optimized for wideband, low-error closed-loop configurations where phase margin and settling behavior are critical in sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise Density | 4.5nV/√Hz @ 10Hz - enables sub-100nV RMS noise in 1Hz–10kHz audio band |
| Input Offset Voltage | 25µV max - supports ≤0.0025% gain error in 1000× instrumentation amplifiers |
| Offset Drift | 0.6µV/°C max - ensures <1µV total drift over –40°C to +85°C operating range |
| Gain Bandwidth Product | 8MHz - allows stable 100× closed-loop gain up to 80kHz with minimal phase lag |
| Slew Rate | 1.7V/µs - supports clean 10Vpp output at 10kHz without slewing distortion |
| Common-Mode Rejection | 117dB min - rejects >700,000:1 of common-mode interference in bridge sensor circuits |
| Supply Voltage Range | ±22V - accommodates ±15V industrial rails with 2V headroom for transient margins |
Pinout & Package
LT1007IS8 is housed in an 8-lead plastic small-outline (SOIC) package (S8), measuring 3.9mm × 4.9mm × 1.75mm, with gull-wing leads and 1.27mm pitch. The package is RoHS-compliant and rated for –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOS TRIM (–) | Connects to wiper of 10kΩ potentiometer for offset nulling; does not degrade temperature drift when trimmed per spec |
| 2 | Inverting Input (–IN) | Differential input node; low input bias current (±35nA max) minimizes resistor-induced errors |
| 3 | Non-Inverting Input (+IN) | Differential input node; matched input impedance enables balanced source rejection |
| 4 | V– | Negative supply rail connection; case-isolated in SOIC to prevent ground loop coupling |
| 5 | NC | No internal connection - must be left unconnected or grounded per layout best practice |
| 6 | Output (OUT) | Capable of ±11V swing into 600Ω load; short-circuit protected for indefinite duration |
| 7 | V+ | Positive supply rail connection; supports decoupling with ≥0.1µF ceramic capacitor adjacent to pin |
| 8 | VOS TRIM (+) | Second terminal of offset null potentiometer; forms balanced trim network with Pin 1 |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise corner | 2Hz - ensures flat noise floor down to sub-Hz frequencies for DC-coupled sensor interfaces |
| Guaranteed open-loop gain | 7 million into 2kΩ - enables <0.0001% gain error in high-precision transducer amplifiers |
| Input resistance | 7GΩ - preserves signal integrity with high-Z sources like piezoelectric sensors and photodiodes |
| Thermal stability | 0.2µV/month long-term drift - eliminates recalibration needs in sealed industrial instruments |
| Unity-gain stability | No external compensation required - simplifies PCB layout and reduces component count in buffer stages |
Applications
| Strain Gauge Amplifier | Microphone Preamplifier |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from load cells in weigh scales and structural monitoring systems. IC Role / Device Role / Timing Role: Primary gain stage with DC-coupled, low-drift, low-noise amplification before ADC digitization. Use Value: 25µV offset and 0.6µV/°C drift ensure ≤1 LSB error over temperature in 16-bit systems using 5V excitation. | Use Scenario: First-stage amplification of dynamic microphone signals in studio-grade audio interfaces. IC Role / Device Role / Timing Role: Low-noise, low-distortion voltage amplifier with 4.5nV/√Hz noise density and 0.0025% THD. Use Value: Enables >110dB SNR in 20Hz–20kHz bandwidth without requiring transformer coupling or exotic passive components. |
| Tape Head Amplifier | Infrared Detector Preamplifier |
Use Scenario: Recovering high-frequency analog signals from magnetic tape playback heads with minimal added noise. IC Role / Device Role / Timing Role: Wideband, low-capacitance input amplifier driving RC equalization networks. Use Value: 8MHz GBW and 1.7V/µs slew rate preserve transient response up to 100kHz while rejecting head flutter-induced baseline shifts. | Use Scenario: Amplifying low-current, low-signal-level outputs from cooled HgCdTe infrared detectors in spectroscopy equipment. IC Role / Device Role / Timing Role: Transimpedance amplifier front-end with guarded input and low input capacitance. Use Value: 7GΩ input resistance and 2Hz 1/f corner minimize Johnson-Nyquist and thermoelectric noise in cryogenic environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1028CS8 | Lower voltage noise (0.85nV/√Hz), higher supply current (10mA), no VOS trim pins | Better for ultra-low-noise RF/IF preamps; unsuitable where offset trimming or low quiescent power is required | Choose LT1028CS8 only if voltage noise dominates system budget and offset adjustment is unnecessary |
| OP27GSZ | Higher offset (25µV typ, not guaranteed), 3.0µV/°C drift, no trim pins, 800kHz GBW | Lower cost for general-purpose precision use; lacks guaranteed specs for worst-case industrial temp range | Choose OP27GSZ for commercial-temp designs where guaranteed 0.6µV/°C drift and 117dB CMRR are not mandatory |
Compared with LT1007IS8, LT1028CS8 trades guaranteed offset trim and industrial temperature support for lower noise, while OP27GSZ offers lower cost but sacrifices guaranteed drift and CMRR - making LT1007IS8 the optimal choice for calibrated, field-deployed instrumentation requiring long-term stability.
Availability
LT1007IS8 is available at Aetrix Electronics and suitable for strain gauge amplifiers, microphone preamplifiers, tape head amplifiers, and infrared detector interfaces requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LT1007IS8 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 support for legacy Linear op amps including the LT1007 series, ensuring long-term documentation, reliability testing, and manufacturing continuity.
The LT1007 series was engineered specifically for high-accuracy, low-noise analog signal chains in test equipment, industrial sensors, and professional audio - prioritizing guaranteed DC precision and broadband noise performance over raw speed.
FAQ
What is the maximum operating temperature range for the LT1007IS8?
The LT1007IS8 is specified for operation from –40°C to +85°C. This industrial temperature grade is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics section for LT1007I variants, with thermal parameters including θJA = 190°C/W for the S8 package.
Does the LT1007IS8 require external compensation capacitors?
No, the LT1007IS8 is unity-gain stable and does not require external compensation. Unlike the LT1037, it is internally compensated for stable operation at AV = 1, as verified in the Gain vs Frequency plots and Applications Information section of the datasheet.
Can the LT1007IS8 drive a 600Ω load to ±10V?
Yes, the LT1007IS8 guarantees ±11.0V output swing into a 600Ω load at ±15V supplies, as specified in the Electrical Characteristics table under "Maximum Output Voltage Swing." This makes it suitable for line-driving and active filter applications requiring robust output current.
How is offset voltage adjusted on the LT1007IS8?
The LT1007IS8 provides dedicated VOS TRIM pins (1 and 8) for external nulling with a 10kΩ potentiometer. Per the Applications Information, this method preserves low drift (≤1µV/°C increase) and achieves ±2.5mV adjustment range without degrading long-term stability.
Is the LT1007IS8 pin-compatible with older op amps like the OP-07?
Yes - the LT1007IS8 can be directly inserted into OP-07, OP-27, OP-37, and 5534 sockets without modification, as explicitly stated in the Applications Information section. Its pinout matches standard 8-lead SOIC op amp footprints, including identical V+, V–, IN+, IN–, OUT, and null pin assignments.
LT1007IS8 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:
- 2.5V/µs
- Gain Bandwidth Product:
- 8 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
LT1007IS8 FAQ
1.How can I place an order for LT1007IS8 through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1007IS8 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 LT1007IS8 reliable?
The price and inventory of LT1007IS8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1007IS8 is usually 5 days.
3.What payment methods are accepted for LT1007IS8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1007IS8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1007IS8?
LT1007IS8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1007IS8 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 LT1007IS8?
For technical support, including LT1007IS8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1007IS8 requirements.
6.How does Aetrix verify that LT1007IS8 is sourced from the original manufacturer or authorized distributors?
All LT1007IS8 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 LT1007IS8 meets industry standards.
7.What is the process for return or replacement of LT1007IS8?
All LT1007IS8 units undergo pre-shipment inspection (PSI). If there is an issue with LT1007IS8, 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 LT1007IS8 part is unused and in its original packaging.
Return procedure for LT1007IS8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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