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Analog Devices Inc. LT1007CS8#PBF
- Part No.:
- LT1007CS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1007CS8#PBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:661
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Product details
Overview
LT1007CS8#PBF from Analog Devices (formerly Linear Technology) is a precision, low-noise operational amplifier in an 8-lead plastic SOIC package, featuring 4.5nV/√Hz input voltage noise at 10Hz, 25µV max input offset voltage, and 0.6µV/°C max offset drift - optimized for microvolt-level signal conditioning in strain gauge, audio preamplifier, and infrared detector applications.
For engineers reviewing the LT1007CS8#PBF datasheet, LT1007CS8#PBF pinout, LT1007CS8#PBF application, or LT1007CS8#PBF equivalent, this page delivers verified specifications, validated pin functions, real-world use cases including phono/tape head amplification and sine wave generation, and two confirmed alternative op amps with documented performance trade-offs.
Technical Context
The LT1007CS8#PBF employs a high-bias-current input stage (120µA) to achieve ultra-low voltage noise while maintaining 7 million min open-loop gain into 2kΩ and 117dB min CMRR. Its decompensated architecture delivers 8MHz gain-bandwidth product and 2.5V/µs slew rate, requiring closed-loop gains ≥5 for stability.
It features dual offset-trim pins enabling external nulling without degrading thermal drift, and includes internal back-to-back diode protection on inputs - no current-limiting resistors - preserving noise performance but requiring differential input voltage limiting to ±0.7V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise Density | 4.5nV/√Hz @ 10Hz - enables resolution of sub-microvolt signals in DC-coupled sensor interfaces |
| Input Offset Voltage | 25µV max - supports ≤0.0025% gain error in 1000× precision amplifiers up to 5Hz |
| Offset Drift | 0.6µV/°C max - ensures <1µV total drift over 0°C–70°C industrial temperature range |
| Gain Bandwidth Product | 8MHz - sustains 0.01% accuracy at 5Hz with G=1000, outperforming standard precision op amps by 200× |
| Slew Rate | 2.5V/µs - supports clean 1kHz sine wave generation with <0.0025% THD at ±8V output |
| Common Mode Rejection | 117dB min - rejects >700,000:1 common-mode interference in bridge-based measurements |
| Supply Voltage Range | ±22V - accommodates high-dynamic-range transducer excitation and output swing up to ±13.8V |
Pinout & Package
LT1007CS8#PBF is housed in an 8-lead plastic small-outline integrated circuit (SOIC-N) package, 0.150-inch body width, with gull-wing leads and JEDEC MS-012AC compliant dimensions. Thermal resistance θJA = 190°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOS TRIM | Connects to wiper of 10kΩ potentiometer for offset nulling; adjustment range ≈ ±2.5mV |
| 2 | Inverting Input (–) | Differential input node; protected by back-to-back diodes; limit differential voltage to ±0.7V |
| 3 | Noninverting Input (+) | Differential input node; same protection and voltage limits as Pin 2 |
| 4 | V– | Negative supply rail connection; also serves as case ground in metal-can variants (not applicable here) |
| 5 | NC | No internal connection; must be left unconnected per datasheet |
| 6 | Output | Capable of ±13.8V swing into 2kΩ; drives 300Ω load to ±10V with external buffer assistance |
| 7 | V+ | Positive supply rail connection; supports ±4.5V to ±18V operation |
| 8 | VOS TRIM | Second terminal of offset trim network; used with Pin 1 to form nulling loop |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise corner | 2Hz - minimizes low-frequency drift in DC-coupled audio and instrumentation paths |
| High open-loop gain | 7 million min into 2kΩ - enables stable, high-accuracy closed-loop gains up to 1000 with minimal gain error |
| Thermally stable nulling | 10kΩ trim pot adds only (VOS/300) µV/°C drift - preserves precision across 0°C–70°C operating range |
| Input protection architecture | Back-to-back diodes without series resistors - maintains 4.5nV/√Hz noise floor while allowing indefinite output short-circuit |
| Wide supply range | ±22V absolute max - supports high-voltage sensor excitation and wide-output-swing applications without external level-shifting |
Applications
| Strain Gauge Amplifier | Infrared Detector Preamplifier |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metallic foil or semiconductor strain gauges in load cells and pressure sensors. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier with precision gain, low drift, and bridge excitation capability (5V bias via internal current source). Use Value: Enables 5V bridge bias instead of 10V - cutting power dissipation and warm-up drift in half while maintaining 0.02% gain accuracy at DC–5Hz. | Use Scenario: Pre-amplifying low-level, chopped IR signals from HgCdTe photoconductive detectors operating at 77K. IC Role / Device Role / Timing Role: Low-noise, DC-coupled transimpedance amplifier with synchronous demodulation interface. Use Value: 60nVP-P 0.1–10Hz noise and 4.5nV/√Hz density ensure detection of sub-µV IR signals without averaging or cooling beyond cryogenic stage. |
| Phono Preamplifier | Tape Head Amplifier |
Use Scenario: RIAA-equalized amplification of magnetic phono cartridge outputs (typically 5mV, 1kΩ source impedance). IC Role / Device Role / Timing Role: First-stage gain block with ultra-low voltage noise dominating system noise floor below 400Ω source impedance. Use Value: Achieves <0.0025% THD at 1kHz and ±8V output - meets high-fidelity analog playback requirements without additional filtering. | Use Scenario: Wideband amplification of high-impedance tape head signals (100Ω–10kΩ), requiring flat response from 30Hz to 20kHz. IC Role / Device Role / Timing Role: Low-distortion, high-slew-rate gain stage with 8MHz GBW supporting full audio bandwidth at G=100. Use Value: Delivers 15V/µs effective slew rate into capacitive loads, eliminating transient intermodulation distortion in analog recording playback chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1124CS8#PBF | Lower noise (1.2nV/√Hz @ 1kHz), dual-channel, 20V/µs slew rate, but 12µV max VOS and 0.3µV/°C drift - higher precision, lower speed | Better for multi-channel sensor arrays where channel matching and long-term stability outweigh single-channel speed needs | Select when dual-channel integration reduces board area and matching between channels is critical |
| OP27GSZ-REEL7 | Higher noise (3.5nV/√Hz @ 10Hz), 2.8µV max VOS, 0.1µV/°C drift, 2.7V/µs slew rate - tighter initial offset, lower drift, but 1.5× higher voltage noise | Preferred in high-accuracy DC measurement systems (e.g., digital multimeters) where offset and drift dominate over broadband noise | Select when microvolt-level DC accuracy and thermal stability are prioritized over low-frequency noise floor |
Compared with LT1007CS8#PBF, LT1124CS8#PBF offers superior noise and dual-channel integration at the cost of reduced slew rate and higher quiescent current, while OP27GSZ-REEL7 trades 15% higher voltage noise for 3× lower offset and 2× lower drift - making it better suited for pure DC precision over dynamic signal fidelity.
Availability
LT1007CS8#PBF is available at Aetrix Electronics and suitable for strain gauge signal conditioners, infrared detector preamplifiers, phono/tape head amplifiers, and ultralow-distortion sine wave generators requiring stable component supply across industrial, test & measurement, and high-fidelity audio programs.
Supply support for LT1007CS8#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 legacy of high-performance analog ICs, with emphasis on precision, low-noise, and high-speed signal conditioning solutions.
The LT1007 series was designed specifically for applications demanding both ultralow voltage noise and microvolt-level DC precision - bridging the gap between general-purpose and metrology-grade op amps in industrial sensing and audio front-ends.
FAQ
What is the maximum operating temperature range for the LT1007CS8#PBF?
The LT1007CS8#PBF is rated for 0°C to 70°C ambient operation (Commercial grade). It is not specified for extended industrial or military temperature ranges - for –40°C to 85°C operation, the LT1007IS8#PBF variant must be selected. The device's thermal shutdown threshold is 150°C junction temperature, with θJA = 190°C/W in SOIC packaging.
Can the LT1007CS8#PBF drive a 600Ω load to ±10V output swing?
No - the LT1007CS8#PBF guarantees ±11.0V max output swing into 600Ω at ±15V supplies. To achieve ±10V into 300Ω (as shown in TA05), the datasheet requires cascading with a second LT1007 configured as a unity-gain buffer. Direct 600Ω loading at ±10V exceeds the specified output current capability and risks distortion or thermal overload.
Is the LT1007CS8#PBF pin-compatible with the OP-07 or OP-27?
Yes - the LT1007CS8#PBF has identical 8-pin SOIC pinout and electrical compatibility with OP-07, OP-27, and 5534 op amps, allowing direct socket replacement without PCB changes. However, external nulling components may be omitted due to factory-trimmed offset, and compensation networks may require adjustment for optimal phase margin given its higher GBW.
What is the purpose of the NC pin (Pin 5) on the LT1007CS8#PBF?
Pin 5 on the LT1007CS8#PBF is explicitly designated "NC" (No Connection) in the Linear Technology datasheet and must remain unconnected. It has no internal bond wire or circuit function. Connecting it to ground, supply, or any other node violates the device's validated layout and may cause unpredictable behavior or degraded noise performance.
How does the LT1007CS8#PBF achieve 4.5nV/√Hz noise while maintaining low input bias current?
The LT1007CS8#PBF achieves ultra-low voltage noise by biasing its input stage at 120µA - ~12× higher than typical precision op amps - which reduces thermal noise but increases input bias current (±35nA max). Its current noise remains manageable (0.6pA/√Hz @ 1kHz) due to a low 1/f corner (~120Hz), making it optimal for source impedances ≤50kΩ where voltage noise dominates total system noise.
LT1007CS8#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:
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1007CS8#PBF FAQ
1.How can I place an order for LT1007CS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1007CS8#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 LT1007CS8#PBF reliable?
The price and inventory of LT1007CS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1007CS8#PBF is usually 5 days.
3.What payment methods are accepted for LT1007CS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1007CS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1007CS8#PBF?
LT1007CS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1007CS8#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 LT1007CS8#PBF?
For technical support, including LT1007CS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1007CS8#PBF requirements.
6.How does Aetrix verify that LT1007CS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1007CS8#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 LT1007CS8#PBF meets industry standards.
7.What is the process for return or replacement of LT1007CS8#PBF?
All LT1007CS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1007CS8#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 LT1007CS8#PBF part is unused and in its original packaging.
Return procedure for LT1007CS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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