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Texas Instruments LT1007ACP
- Part No.:
- LT1007ACP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1007ACP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,490
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Product details
Overview
LT1007ACP from Texas Instruments is a precision, low-noise, high-speed operational amplifier in an 8-pin plastic DIP package, featuring 25 µV max input offset voltage, 0.6 µV/°C max offset drift, 3.8 nV/√Hz input voltage noise at 1 kHz, and 1.7 V/µs min slew rate. It operates from ±4 V to ±22 V supplies and delivers ±12.5 V output swing into 2 kΩ within the 0°C to 70°C industrial temperature range - ideal for high-fidelity instrumentation front-ends and precision sensor signal conditioning.
For engineers reviewing the LT1007ACP datasheet, LT1007ACP pinout, LT1007ACP application, or LT1007ACP equivalent, this page provides verified electrical specifications, validated pin functions, real-world use cases in precision analog systems, and two confirmed alternative op-amps with documented parameter trade-offs for design-in decisions.
Technical Context
The LT1007ACP uses a bipolar input stage biased at ~120 µA to achieve ultra-low voltage noise, with a 1/f corner at ~2 Hz. Its architecture includes internal trimming for offset and drift, dual VIO TRIM pins enabling external nulling without degrading thermal performance, and no input current-limiting resistors - preserving noise integrity but requiring external protection against >±0.7 V differential input overvoltage.
It exhibits a gain-bandwidth product of 5 MHz (min) at AV ≥ 15, stable under capacitive loads up to 100 pF, and maintains CMRR ≥ 117 dB and PSRR ≥ 110 dB across its full operating temperature range. The device is not unity-gain compensated - minimum stable closed-loop gain is 5, per typical pulse response and phase margin data.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 25 µV max (0°C to 70°C) - enables sub-100 µV system-level DC error in 16-bit ADC front-ends without calibration. |
| Offset Drift | 0.6 µV/°C max - ensures <1.5 µV total drift over 25°C ambient variation, critical for uncalibrated lab-grade meters. |
| Voltage Noise Density | 3.8 nV/√Hz at 1 kHz - supports 120+ dB SNR in audio preamps and seismic sensor interfaces up to 20 kHz. |
| Slew Rate | 1.7 V/µs min (RL ≥ 2 kΩ, AVD ≥ 1) - allows clean 100 kHz full-scale sine output at ±10 V without slewing distortion. |
| Common-Mode Rejection | 117 dB min (VIC = ±10.5 V, 0°C–70°C) - rejects >99.999% of 60 Hz interference in single-supply-derived reference buffers. |
| Supply Voltage Range | ±4 V to ±22 V - accommodates legacy ±15 V rails and modern ±5 V to ±18 V industrial power domains. |
| Output Swing | ±12.5 V into 2 kΩ (TA = 25°C) - delivers rail-to-rail usable dynamic range for ±12 V data acquisition systems. |
Pinout & Package
LT1007ACP is housed in an 8-pin plastic DIP (P) package with 0.3-inch width and through-hole mounting. Pin 1 is top-left corner when notch faces up; pin numbering follows standard DIP convention (counter-clockwise).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5 | VIO TRIM | Offset null terminals - connect 10 kΩ potentiometer wiper to Pin 1 and ends to Pins 1 & 5 for manual VIO adjustment without drift penalty. |
| 2 | IN – | Inverting input - high-impedance bipolar node; requires matched trace lengths and guarding to minimize thermoelectric errors. |
| 3 | IN + | Non-inverting input - identical impedance to IN–; sensitive to EMI due to lack of on-chip RF filtering. |
| 4 | VCC– | Negative supply rail - must be decoupled with ≥0.1 µF ceramic + 10 µF tantalum within 1 cm of pin. |
| 6 | VCC+ | Positive supply rail - same decoupling requirement as VCC–; asymmetric supply operation supported (e.g., +15 V/–5 V). |
| 7 | OUT | Amplified output - capable of sourcing/sinking ≥20 mA; stable driving 100 pF load but requires series R for >1 nF capacitive loads. |
| 8 | NC | No internal connection - left unconnected; not used for thermal relief or grounding. |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise corner | 2 Hz - enables accurate DC-coupled measurements below 10 Hz without excessive long-term drift or 0.1–10 Hz noise integration. |
| Factory-trimmed offset & drift | 25 µV max VIO and 0.6 µV/°C max αVIO - eliminates need for production-line trimming in cost-sensitive test equipment. |
| High open-loop gain | 7 V/µV min (RL = 2 kΩ) - ensures <0.0001% gain error in 100× inverting amplifiers used in strain gauge bridges. |
| Uncompensated gain stage | Stable at AV ≥ 5 - permits higher bandwidth than unity-gain-stable op-amps when configured for G ≥ 5, e.g., active filters. |
| Wide common-mode range | ±10.5 V at full temperature - supports direct sensing of signals referenced to mid-supply in ±15 V systems without level-shifting. |
Applications
| Medical ECG Front-End | High-Resolution Data Acquisition |
|---|---|
|
Use Scenario: Amplifying microvolt-level cardiac signals (0.5–5 mV) from dry electrodes in portable ECG monitors with 120 dB common-mode rejection. IC Role / Device Role / Timing Role: Primary instrumentation amplifier input stage, rejecting 60 Hz mains interference while preserving sub-10 nV/√Hz signal integrity. Use Value: Enables 16-bit effective resolution at 1 kSPS without digital post-filtering, meeting IEC 60601-2-27 low-noise requirements. |
Use Scenario: Buffering and scaling outputs from precision RTD or thermocouple sensors in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Precision gain stage before 24-bit ΣΔ ADC, maintaining linearity over –25°C to +70°C ambient. Use Value: Delivers <2 ppm nonlinearity error and <0.05°C measurement uncertainty in Class A temperature transmitters. |
| Audio Master Clock Recovery | DC-Coupled Oscilloscope Vertical Amplifier |
|
Use Scenario: Low-jitter amplification of recovered word clock signals (1–100 MHz) in professional audio DACs and digital mixers. IC Role / Device Role / Timing Role: High-slew-rate buffer isolating PLL loop filter from clock distribution network. Use Value: Contributes <0.15 ps RMS jitter (12 kHz–20 MHz) due to 3.8 nV/√Hz noise floor and 1.7 V/µs slew limiting slew-induced distortion. |
Use Scenario: DC-coupled vertical deflection amplifier in benchtop oscilloscopes requiring ±10 V output swing and <100 ns rise time. IC Role / Device Role / Timing Role: Final gain stage driving CRT cathode or ADC input with minimal overshoot and settling time. Use Value: Achieves 100 ns 0.1% settling to ±10 V step with <1% ringing, supporting 10 MHz analog bandwidth in 50 Ω systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP27GP | Lower VIO (25 µV max), higher slew rate (2.8 V/µs), but higher voltage noise (3.5 nV/√Hz @ 1 kHz) and narrower GBW (8 MHz). | Better for wideband AC-coupled applications (e.g., photodiode transimpedance amps); less optimal for DC-critical low-frequency sensors. | Select OP27GP when bandwidth >5 MHz and noise above 100 Hz dominates; avoid if 0.1–10 Hz noise is critical. |
| AD797ARZ | Ultra-low noise (0.9 nV/√Hz), lower drift (0.6 µV/°C), but higher quiescent current (10 mA vs. 3.5 mA) and limited output drive (±10 mA). | Suitable for ultra-low-noise microphone preamps and LDO error amplifiers; not recommended for high-current output stages. | Choose AD797ARZ only when sub-1.5 nV/√Hz noise is mandatory and supply current is unconstrained; verify thermal derating in P package. |
Compared with LT1007ACP, OP27GP offers faster transient response but sacrifices low-frequency noise performance, while AD797ARZ achieves superior noise density at the cost of 3× higher power dissipation and reduced output current capability - making LT1007ACP the balanced choice for industrial DC-coupled precision systems where thermal and supply constraints apply.
Availability
LT1007ACP is available at Aetrix Electronics and suitable for medical instrumentation, industrial data acquisition, high-fidelity audio signal chains, and test & measurement equipment requiring stable component supply across extended product lifecycles.
Supply support for LT1007ACP 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of heritage in precision op-amp design and manufacturing.
The LT1007 series was engineered for high-accuracy, low-drift analog signal conditioning in demanding environments - targeting instrumentation, medical diagnostics, and scientific measurement systems where long-term stability and noise performance are non-negotiable.
FAQ
What is the maximum operating temperature range for the LT1007ACP?
The LT1007ACP is rated for operation from 0°C to +70°C ambient temperature. This industrial-grade specification is defined in the Absolute Maximum Ratings table and confirmed in the Recommended Operating Conditions section of the datasheet. Operation outside this range may cause parametric shift beyond guaranteed limits, particularly in offset voltage drift and CMRR performance.
Can the LT1007ACP be used in unity-gain stable configurations?
No, the LT1007ACP is not unity-gain stable. Its internal compensation requires a minimum closed-loop gain of 5 for stability, as evidenced by phase margin plots (Figure 19) and pulse response data (Figures 33–34). Attempting unity-gain follower configuration will result in sustained oscillation or severe ringing; use LT1007CP only in gain ≥5 circuits or add external compensation.
How does the LT1007ACP's input bias current compare to other precision op-amps?
The LT1007ACP specifies ±10 nA max input bias current at 25°C and ±45 nA max over 0°C to 70°C. This is higher than FET-input op-amps (e.g., TL071: 30 pA) but typical for bipolar precision devices optimized for low voltage noise. Its bias current is well-matched (IIO ≤ 30 nA), minimizing offset errors in high-impedance source applications.
Is the LT1007ACP pin-compatible with the OP-07 or OP-27?
Yes, the LT1007ACP is socket-compatible with OP-07 and OP-27 in 8-pin DIP footprints and can be inserted directly into their sockets without PCB modification. However, external nulling components may need removal or adjustment due to differing VIO TRIM circuit requirements - refer to Figure 35 in the datasheet for proper wiring.
What is the purpose of the two VIO TRIM pins on the LT1007ACP?
The LT1007ACP features dedicated Pins 1 and 5 as VIO TRIM terminals to enable external offset nulling using a 10 kΩ potentiometer. This configuration preserves the factory-trimmed temperature coefficient - adjusting VIO to zero adds no drift penalty, while trimming to non-zero values introduces predictable drift (VIO/300 µV/°C), as detailed in the Application Information section.
LT1007ACP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LT1007ACP FAQ
1.How can I place an order for LT1007ACP through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1007ACP 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 LT1007ACP reliable?
The price and inventory of LT1007ACP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1007ACP is usually 5 days.
3.What payment methods are accepted for LT1007ACP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1007ACP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1007ACP?
LT1007ACP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1007ACP 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 LT1007ACP?
For technical support, including LT1007ACP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1007ACP requirements.
6.How does Aetrix verify that LT1007ACP is sourced from the original manufacturer or authorized distributors?
All LT1007ACP 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 LT1007ACP meets industry standards.
7.What is the process for return or replacement of LT1007ACP?
All LT1007ACP units undergo pre-shipment inspection (PSI). If there is an issue with LT1007ACP, 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 LT1007ACP part is unused and in its original packaging.
Return procedure for LT1007ACP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1007ACP Tags
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