LT1037CL - Low-Noise Precision Op Amp | Texas Instruments
MPN: LT1037CL ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.12 | $5.12 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
LT1037CL Overview
An operational amplifier, or op amp, is a voltage-controlled differential amplifier that uses high open-loop gain to amplify the difference between two input voltages. The larger product hierarchy is operational amplifier -> voltage-feedback amplifier -> analog signal-conditioning IC -> semiconductor. The LT1037 combines low-voltage noise, high bandwidth, and precision offset performance in one analog building block. It is particularly useful when a design must preserve small signals through a moderate-gain stage rather than merely provide basic amplification.
The verified LT1037 family specifications emphasize unusually low wideband noise at 2.5 nV/√Hz, with less noise than a 400 ohm resistor according to the Analog Devices product page. The listed 1/f corner of 2 Hz helps low-frequency noise remain small, while the 60 MHz gain-bandwidth product supports faster closed-loop operation. The decompensated LT1037 is described as stable for closed-loop gains of 5 or greater, an important constraint when selecting feedback networks.
Typical uses include low-level sensor interfaces, precision current-feedback and voltage-feedback stages, audio preamplification, laboratory instrumentation, and feedback loops requiring rapid response. The 8-lead TO-99 package supports through-hole insertion and is mechanically distinct from surface-mount equivalents. Designers should preserve the required gain condition and verify the complete pinout against the manufacturer datasheet before assembly.
A key design consideration is that low noise alone does not guarantee low total error. Offset voltage, drift, input bias current, common-mode range, supply voltage, and stability must be evaluated together. The verified excerpts do not provide every operating limit or pin-level detail, so final circuit design should use the manufacturer datasheet rather than distributor summaries.
This page combines verified product facts, source URLs, cross-reference limitations, and engineering-focused selection guidance. It is intended to help buyers distinguish the LT1037CL from generic precision op amps while avoiding unsupported alternative or compliance claims.
Drop-in alternatives for LT1037CL — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with LT1037CL (same form factor and footprint) — differing in Package, Product Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LT1037
✅ Drop-In📋 Reference alternative (not in catalog)
LT1007
✅ Drop-In📋 Reference alternative (not in catalog)
LT1037CS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
LT1037CN
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
LT1037CP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
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View Datasheet →LT1037CL Maximum Ratings & Electrical Characteristics
| Product Type | Single operational amplifier |
| Amplifier Category | Instrumentation, op amp, buffer amp |
| Number of Circuits | 1 circuit |
| Package | TO-99-8 |
| Gain-Bandwidth Product | 60 MHz |
| Wideband Input Noise | 2.5 nV/√Hz |
| 1/f Corner Frequency | 2 Hz |
| 0.1 Hz to 10 Hz Peak-to-Peak Noise | 60 nV |
| Offset Voltage | 10 µV |
| Offset Voltage Drift | 0.2 µV/°C |
| Common-Mode Rejection | 130 dB |
| Power-Supply Rejection | 130 dB |
| Closed-Loop Stability | Stable for closed-loop gains of 5 or greater |
| Frequency Response | Up to 8 MHz |
| Input Offset Voltage Maximum | 110 µV |
| Mounting Type | Through-hole |
LT1037CL to-99-8 Pin Configuration Guide
Pin configuration for LT1037CL (to-99-8 package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for LT1037CL.
Refer to the datasheet for full pin configuration.
Typical Applications
LT1037CL is suitable for 6 applications: Precision Sensor Signal Conditioning, Audio Preamplification, Laboratory Instrumentation, Precision Feedback Control, High-Resolution Signal Acquisition, Low-Level Current Measurement.
Precision Sensor Signal Conditioning
The LT1037CL fits low-level sensor front ends where small signals must be amplified without adding excessive broadband or low-frequency noise. Its verified 2.5 nV/√Hz wideband noise and 2 Hz 1/f corner reduce the noise contribution of the amplifier itself, while 10 µV offset and 0.2 µV/°C drift help preserve DC accuracy. Use the device in a closed-loop gain of at least 5, as required by the decompensated architecture, and check input bias current and common-mode limits against the sensor output range.
Recommended
Audio Preamplification
For microphone, line-level, or low-level audio stages, the LT1037CL offers a combination of low voltage noise and a 2 Hz 1/f corner. Its 2.5 nV/√Hz wideband noise is relevant when preserving quiet signal detail, while the 60 MHz gain-bandwidth product leaves bandwidth margin above typical audio frequencies. Configure the feedback network for closed-loop gain 5 or greater, verify the output drive capability for the intended load, and ensure the supply and output swing remain inside the manufacturer limits.
Recommended
Laboratory Instrumentation
The LT1037CL is appropriate for laboratory measurement chains where a source signal is small and repeatable, such as bridge, potentiometer, or precision transducer interfaces. Low offset and low drift are valuable when the system must distinguish small changes in input voltage, while the high gain-bandwidth product supports bandwidth in active filtering or feedback control. The designer should still verify input bias current, common-mode range, supply voltage, and stability in the exact feedback topology before finalizing the instrument.
Recommended
Precision Feedback Control
Use the LT1037CL in higher-gain feedback loops where bandwidth and low noise are both valuable. The verified 60 MHz gain-bandwidth product can support faster loop dynamics than a purely precision, low-bandwidth amplifier, while the low-noise specification helps reduce injected noise. Because the decompensated part is specified for closed-loop gains of 5 or greater, compensation and loop stability must be analyzed around the operating gain. Confirm phase margin, output swing, and load behavior in the datasheet and prototype measurements.
Recommended
High-Resolution Signal Acquisition
The LT1037CL can serve as the drive or gain stage ahead of a high-resolution ADC when the source impedance and bandwidth permit. Its low voltage noise is useful when the ADC’s input-referred noise would otherwise be degraded by the preceding amplifier, and the 60 MHz gain-bandwidth product provides more bandwidth than many precision applications require. Check settling time and slew rate against the sampling rate, and use a closed-loop gain of at least 5 rather than forcing unity-gain operation on this decompensated amplifier.
Recommended
Low-Level Current Measurement
In current-sense and transimpedance-style signal paths, the LT1037CL’s low voltage noise can help preserve small current-derived voltages. The 2 Hz 1/f corner is useful when slow drift and low-frequency noise dominate the measurement, and the 60 MHz gain-bandwidth product can support bandwidth required by a fast transimpedance network. The exact resistor and feedback topology must be checked against the LT1037 gain-stability requirement; input bias current, input capacitance, and output drive are critical at practical source impedances.
Recommended
Recommended Products Summary
Engineering reference data for LT1037CL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LT1037 | LT1007 | LT1037CS | LT1037CN | LT1037CP |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
Key Differentiators
- Verified low-noise performance (vs LT1007)
- Higher verified bandwidth (vs LT1007)
- Precision DC specifications (vs LT1037 family variants)
Design Notes
The LT1037 is decompensated and the verified Analog Devices page states that it is stable for closed-loop gains of 5 or greater. Do not build a unity-gain follower unless the exact manufacturer documentation confirms an external compensation method. In a new design, start with the specified minimum stable gain, preserve the intended noise bandwidth, and simulate or measure phase margin before increasing loop bandwidth.
The LT1037CL uses a through-hole TO-99-8 package. Keep sensitive input and feedback traces short, connect the feedback components close to the relevant pins, and separate the input path from high-current or switching nodes. Because the verified data emphasizes very low voltage noise, grounding and return-current layout can materially affect measured system noise even when the IC itself performs as specified.
Validate the supply voltage and output swing against the manufacturer datasheet before connecting external circuitry; those limits are not present in the supplied excerpts. Keep power-supply bypass capacitance close to the supply pins and check that the selected feedback network does not demand output current beyond the device’s load capability. Decoupling values and stability results must be verified against the actual gain, load, and supply conditions.
Compliance Information
The supplied verified excerpts do not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is treated as not_applicable because the component is listed as a general-purpose instrumentation amplifier, not an automotive-qualified device in the provided data.
