LT1007MLB - Low-Noise Precision Op Amp | Texas Instruments
MPN： LT1007MLB ✓ 啟用中LT1007MLB 概覽
An operational amplifier is an analog signal-conditioning IC that uses high-gain differential amplification to increase the voltage level of a low-amplitude input. Its wider role within analog electronics includes closed-loop gain, active filtering, instrumentation, buffer amplification, and feedback control. The LT1007 family is positioned for applications where low input noise, input-offset accuracy, and low drift are more important than compactness or low power consumption.
Noise performance is a principal benefit of the LT1007 family. The manufacturer specifies 2.5 nV/√Hz wideband input noise, a 2 Hz 1/f corner frequency, and 60 nV peak-to-peak noise over the 0.1 Hz to 10 Hz band. These characteristics make the amplifier suitable for precision signal-chain work in which the amplifier must preserve weak signals without adding excessive broadband or low-frequency noise. The device is a single amplifier rather than a multi-channel integrated package.
The precision specifications further distinguish the LT1007 from general-purpose amplifiers. A 10 µV input-offset voltage and 0.2 µV/°C drift support stable operation when source impedance, temperature, or input common-mode conditions vary. The specified 130 dB common-mode rejection ratio reduces output movement caused by common-mode input voltage, while 130 dB power-supply rejection reduces sensitivity to supply ripple. These specifications are particularly useful in measurement and control systems that require accurate amplification of small differential signals.
Typical uses include precision sensor interfaces, low-level instrumentation, strain-gauge and bridge-amplifier signal paths, high-resolution measurement equipment, low-noise filter stages, and laboratory analog systems. The TO-99-8 package favors legacy instrumentation, military-style equipment, and prototypes where a through-hole metal-can package is convenient. Its physical size and eight terminals make it more appropriate for through-hole designs than compact mixed-signal equipment.
Designers should account for the metal-can package, required supply rails, input-common-mode range, output swing, stability, and compensation requirements when assigning the amplifier. The LT1007 is not decompensated; the 60 MHz gain-bandwidth statement in the manufacturer material applies to the related LT1037, not automatically to LT1007MLB. Follow the manufacturer pin-description table when making PCB connections and verify the exact operating limits for the grade and suffix.
This product overview combines the exact LT1007MLB package and ordering information with the manufacturer’s family-level precision, noise, rejection, and supply specifications. It also distinguishes directly verified device facts from parameters that require confirmation from the complete LT1007 datasheet.
直接替換替代品，適用於 LT1007MLB — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
LT1007CN8
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LT1007AH
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LT1007AM8
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LT1007CS8
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LT1037MLB
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LT1007MLB 最大額定值與電氣特性
| Amplifier Type | Standard general-purpose precision operational amplifier |
| Number of Circuits | 1 circuit |
| Input Offset Voltage | 10 µV |
| Input Offset Voltage Drift | 0.2 µV/°C |
| Common-Mode Rejection Ratio | 130 dB |
| Power-Supply Rejection Ratio | 130 dB |
| Wideband Input Noise | 2.5 nV/√Hz |
| 1/f Corner Frequency | 2 Hz |
| Low-Frequency Noise | 60 nV peak-to-peak (0.1 Hz to 10 Hz) |
| Power Supplies | ±15 V |
| Temperature Grade | Military |
| 封裝 | TO-99-8 metal can |
| Package Shape | Round |
| Number of Terminals | 8 terminals |
| Terminal Form | Wire |
| 安裝類型 | Through-hole |
LT1007MLB round 腳位配置指南
LT1007MLB（round 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： LT1007MLB.
請參閱 資料表 以查看完整腳位配置。
典型應用
LT1007MLB 適用於 6 應用s: Precision Sensor Signal Conditioning, Strain-Gauge Bridge Amplifier, Low-Noise Active Filter, Precision Data Acquisition Front End, Laboratory Reference Signal Source, Military and Rugged Analog Equipment.
Precision Sensor Signal Conditioning
The LT1007MLB fits low-level sensor front ends where source signals are small and temperature variation must not dominate the measurement. Its family-level 10 µV offset voltage, 0.2 µV/°C drift, and 130 dB common-mode rejection help preserve weak differential signals, while 2.5 nV/√Hz wideband noise limits added broadband noise. The amplifier can be used around resistive sensors or bridge outputs with careful attention to source impedance and common-mode range. The TO-99-8 through-hole package is particularly convenient in laboratory, industrial, and legacy instrumentation prototypes. Verify the exact input and output ranges before using it near a supply rail.
Strain-Gauge Bridge Amplifier
A strain-gauge bridge produces a small differential signal, making the LT1007MLB’s low noise and precision offset characteristics useful in the first amplifier stage. The 2.5 nV/√Hz wideband noise and 60 nV peak-to-peak low-frequency noise help preserve resolution, while 130 dB common-mode rejection improves tolerance of common bridge excitation and wiring effects. The amplifier can provide gain around the bridge while remaining stable in a conventional feedback network. Because the TO-99-8 package is physically large, the design is best suited to instrument chassis and high-precision test equipment rather than compact portable sensors.
Low-Noise Active Filter
The LT1007MLB is suitable for an active filter stage in which the amplifier’s own noise would otherwise set the system floor. Its 2.5 nV/√Hz wideband input noise, 2 Hz 1/f corner, and 0.2 µV/°C drift support low-level filtering across temperature. The 130 dB common-mode rejection and power-supply rejection also help isolate the signal path from common-mode disturbances and supply ripple. The unity-gain-stable LT1007 architecture is useful when the filter requires conventional closed-loop operation. Component tolerances and the filter’s noise gain should be reviewed together so that resistor noise does not erase the benefit of the low-noise amplifier.
Precision Data Acquisition Front End
For low-resolution or high-resolution data-acquisition systems, the LT1007MLB can amplify a small sensor output before an ADC while limiting added noise and offset drift. The manufacturer’s 10 µV offset and 130 dB common-mode rejection figures support accurate acquisition of small differential signals, and the low-noise characteristic is particularly valuable when the sensed quantity is close to the converter’s noise floor. The single amplifier also allows each channel to use independent gain and compensation arrangements. Its through-hole TO-99-8 package makes it most suitable for instrumentation chassis, multichannel analog boards, and systems where component size is secondary to precision.
Laboratory Reference Signal Source
The LT1007MLB can condition low-amplitude laboratory references and instrumentation signals where repeatable offset, drift, and noise are important. Its 10 µV input offset and 0.2 µV/°C drift help maintain calibration stability, while 130 dB rejection specifications reduce the effect of common-mode voltage and supply variations. The device can also buffer a sensitive source or drive the input of a higher-precision converter. Because it is a single amplifier in a metal-can package, it offers a straightforward through-hole implementation with generous isolation from neighboring circuitry. Confirm output loading and slew requirements against the complete manufacturer datasheet.
Military and Rugged Analog Equipment
The LT1007MLB’s military temperature-grade designation makes it a relevant candidate for rugged analog modules that require low-noise precision amplification. The device combines 2.5 nV/√Hz wideband noise, 130 dB common-mode rejection, and 130 dB power-supply rejection with an 8-pin TO-99-8 metal-can package. These characteristics support signal conditioning where power-supply disturbances, temperature drift, or common-mode coupling could otherwise degrade a small measurement. Qualification for a specific military program still requires review of the complete ordering table, screening level, test data, and applicable procurement requirements. The package should be mounted in accordance with the manufacturer outline drawing.
工程參考資料，適用於 LT1007MLB — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | LT1007CN8 | LT1007AH | LT1007AM8 | LT1007CS8 | LT1037MLB |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | TO-99-8 | TO-99-8 | TO-99-8 | TO-99-8 | TO-99-8 | TO-99-8 |
| Amplifier Circuits | 1 circuit | 1 circuit | 1 circuit | 1 circuit | 1 circuit | 1 circuit |
| Compensation | Unity-gain stable | Unity-gain stable | Unity-gain stable | Unity-gain stable | Unity-gain stable | Decompensated; stable for closed-loop gains of 5 or greater |
主要差異化特點
- Retains unity-gain-stable operation (對比LT1037MLB)
- Low wideband noise for weak-signal work (對比LT1007CN8)
- Specified precision and rejection performance (對比LT1007AH)
- Low-frequency noise suited to precision measurement (對比LT1007AM8)
設計說明
Do not treat the LT1037 as an automatic substitute for the LT1007. The manufacturer identifies the LT1037 as decompensated and stable for closed-loop gains of 5 or greater, whereas the LT1007 supports unity-gain operation. Even when both use a TO-99-8 package, feedback-network changes and stability testing are required. Also check the exact eight-terminal pinout because compensating the amplifier correctly depends on the correct offset, feedback, and supply connections.
The LT1007 family’s 2.5 nV/√Hz wideband noise is valuable only if the surrounding circuit does not add more noise. Use low-value, low-noise feedback resistors and keep input-bias current paths from adding excessive Johnson noise. Avoid long, high-impedance PCB traces, particularly for the inverting input, because leakage and capacitance can increase noise or reduce phase margin. Place input and feedback components close to the device and use guarding where appropriate.
The TO-99-8 metal-can package requires a circular through-hole footprint and adequate clearance for the metal body. Follow the manufacturer package outline rather than drawing the footprint solely from the terminal count. Maintain spacing between adjacent signal pins to reduce accidental shorts and provide mechanical support for the socket or leads. Because this is a precision analog device, keep high-current switching paths and heat sources physically separated from the input and feedback nodes.
Power the LT1007MLB within the complete manufacturer operating limits and decouple the supply pins close to the device. The family is associated with ±15 V operation, but the permitted input range, common-mode range, output swing, and quiescent current must be taken from the full datasheet. Check startup, shutdown, and supply sequencing if the amplifier operates in a mixed-signal system. Stable low-noise rails are especially important because 130 dB power-supply rejection cannot compensate for supply instability outside the specified frequency and common-mode conditions.
合規資訊
The LT1007MLB is a military-temperature-grade operational amplifier in a TO-99-8 metal-can package. RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations are not stated in the supplied product information, so those fields remain unknown. AEC-Q100 is not applicable because this is an analog operational amplifier rather than an automotive-qualified semiconductor.
