LT1013IP - Dual Precision Low-Power Op Amp | Texas Instruments
MPN： LT1013IP ✓ 啟用中LT1013IP 概覽
An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its differential inputs. The LT1013 belongs to the precision operational-amplifier hierarchy, where low offset voltage and low input bias currents support accurate signal conditioning rather than general switching or high-current drive. Its dual configuration provides two amplifiers in one package, reducing board area when a system needs matched gain stages, buffers, comparators, or active filters.
The LT1013IP combines low-power operation with precision-oriented performance. Its wide 4 V to 44 V supply capability makes it useful in industrial instrumentation, battery-powered measurement systems, process-control equipment, and signal-chain modules that operate from elevated supply voltages. The ability to accept inputs near ground supports single-supply measurement circuits, while the ground-referenced output capability supports low-level sensor and current-loop interfaces.
The device uses a bipolar input architecture. Compared with rail-to-rail-input amplifiers, the architecture emphasizes precision over operation immediately adjacent to the positive supply rail. Designers should therefore verify the common-mode input range, output swing, load capability, and supply limits against their particular feedback network. The 550 uV maximum offset value reported for the LT1013IP is relevant to sensor-amplifier designs because input offset voltage can become a meaningful error after substantial signal gain.
Typical applications include strain-gauge signal conditioning, thermocouple amplification, instrumentation stages, 4 mA-to-20 mA current-loop transmitters, active filters, threshold detection, and multiple gain blocks. Battery-powered precision instrumentation is particularly suitable because the part is identified as a low-power dual operational amplifier while retaining a broad supply range for laboratory, industrial, and communications equipment.
For stable operation, place the input and feedback components close to the device, use suitable bypassing at the supply pins, and verify operation across the complete input, output, load, and temperature ranges. Input common-mode and output swing limits must be checked at the lowest and highest expected supply voltages. Negative supply operation may also be available in specific configurations, but the exact operating conditions must be confirmed in the manufacturer datasheet.
This page consolidates verified manufacturer and distributor information, pin-compatible alternatives, application guidance, and practical design considerations. It also separates confirmed LT1013IP attributes from electrical parameters that require datasheet verification, helping engineers make sourcing and design decisions without treating unverified values as product facts.
直接替換替代品，適用於 LT1013IP — 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。
此系列的變體
與下列產品可直接替換的同系列型號： LT1013IP （相同外形與佔位） — 差異在於 Mounting Type, Amplifier Type, Input Offset Voltage, Number of Channels, Operating Temperature Range.
LT1013CN8
✅ 直接替換📋 參考替代品（不在目錄中）
LT1013CP
✅ 直接替換聯絡詢價
查看資料表 →LM158N
✅ 直接替換📋 參考替代品（不在目錄中）
MC1458D
✅ 直接替換聯絡詢價
查看資料表 →MC1458P
✅ 直接替換📋 參考替代品（不在目錄中）
LT1013IP 最大額定值與電氣特性
| Number of Amplifiers | 2 circuits |
| Supply Voltage Range | 4 V to 44 V |
| Input Offset Voltage | 550 uV maximum |
| Input Architecture | Bipolar input |
| Input Common-Mode Capability | Extends to ground |
| Output Swing | Swings to ground while sinking current |
| Precision Level | Precision operational amplifier |
| Power Class | Low-power operational amplifier |
| 腳位數 | 8 pins |
| Package Type | 8-pin PDIP |
| 安裝類型 | Through-hole PDIP |
LT1013IP 8-pin pdip 腳位配置指南
LT1013IP（8-pin pdip 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： LT1013IP.
請參閱 資料表 以查看完整腳位配置。
典型應用
LT1013IP 適用於 6 應用s: Strain-Gauge Signal Conditioning, Thermocouple Amplification, 4-20 mA Current-Loop Transmitter, Battery-Powered Measurement Systems, Active Filters and Gain Blocks, Threshold Detection and Limit Circuits.
Strain-Gauge Signal Conditioning
The LT1013IP suits low-level strain-gauge front ends because it combines precision dual amplification with a 550 uV maximum input offset specification. Two amplifiers can form differential gain stages around a Wheatstone bridge, reducing board area while preserving a common device and package for matched temperature behavior. Its ground-extended input capability is valuable when the bridge output lies close to 0 V. The design must still verify common-mode range, input bias current, noise, and output swing at the lowest supply voltage, because those values were not supplied in the verified search data.
推薦
Thermocouple Amplification
The LT1013IP can amplify the small differential voltage produced by a thermocouple while operating from a 4 V to 44 V supply range. Its precision-oriented architecture and 550 uV maximum offset are relevant when the desired measurement resolution is on the order of microvolts, although the final error budget must include thermocouple cold-junction compensation and input bias effects. Two amplifiers may support instrumentation or difference channels. Verify the input common-mode range across temperature and confirm adequate output swing for the intended cold-junction reference circuit.
推薦
4-20 mA Current-Loop Transmitter
The LT1013IP is appropriate for the signal-conditioning portion of a 4 mA-to-20 mA current-loop transmitter because the family is specifically associated with precision instrumentation and supports single-supply operation extending toward ground. The dual configuration can provide gain and buffer functions in one 8-pin PDIP package. Its 4 V minimum supply allows operation from a regulated industrial rail above that level. Designers must confirm loop-side output swing, load capability, input bias current, and supply-current requirements before selecting the feedback network and external pass transistor arrangement.
推薦
Battery-Powered Measurement Systems
The LT1013IP fits portable measurement systems because the LT1013 family is described as a low-power, precision dual operational amplifier with a broad 4 V to 44 V supply range. Its ability to accept inputs extending to ground reduces the need for a positive and negative rail in low-level sensing circuits. The two amplifier channels can form successive gain stages or a voltage follower and active filter. A complete battery-life estimate still requires the verified quiescent current, because the supplied distributor data confirms low-power positioning but does not state a numerical supply-current specification.
推薦
Active Filters and Gain Blocks
The LT1013IP can implement precision active filters, integrators, and cascaded gain blocks where low input offset is valuable. Its dual amplifier arrangement allows two related filter or gain functions to share one 8-pin PDIP package, simplifying analog signal-chain construction. The 550 uV maximum offset specification helps constrain DC error in high-gain stages, while the wide supply range supports both compact 5 V systems and higher-voltage instrumentation. Component values and stability should be calculated using the verified gain-bandwidth, slew-rate, noise, and common-mode specifications before release.
推薦
Threshold Detection and Limit Circuits
The LT1013IP is suitable for threshold detection and multiple-limit functions where two precision amplifier channels can compare a sensor signal with reference levels. The verified data identifies the device as a general-purpose, dual precision operational amplifier and reports a 550 uV maximum offset, helping limit errors around the switching point. Input offset drift, common-mode range, and output saturation behavior must be included in the threshold-error analysis. If fast logic-level interfacing is required, compare the verified output-swing and slew-rate limits before relying on the amplifier output to drive digital inputs directly.
推薦
推薦產品摘要
工程參考資料，適用於 LT1013IP — 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 | LT1013CN8 | LT1013CP | LM158N | MC1458D | MC1458P |
|---|---|---|---|---|---|---|
| Package | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices | Analog Devices |
| Number of Amplifiers | 2 circuits | 2 circuits | 2 circuits | 2 circuits | 2 circuits | 2 circuits |
主要差異化特點
- Verified precision offset specification (對比MC1458D)
- Dual precision amplification in one package (對比LT1014)
- Low-power precision family positioning (對比LM158N)
設計說明
Keep feedback resistors, input resistors, and compensation components close to the LT1013IP pins to minimize parasitic capacitance and reduce sensitivity to induced noise. Route the sensitive differential input pair away from switching nodes, relay contacts, and high-current return paths. Because the supplied data does not include the complete pin map, confirm terminal numbering against the manufacturer datasheet before defining the PCB footprint or routing the feedback network.
Provide local supply bypassing using the capacitor values and topology specified in the manufacturer datasheet, and place the bypass capacitor adjacent to the appropriate supply and ground terminals. The LT1013IP supports a 4 V to 44 V family supply range, but the usable signal range is not automatically equal to the supply range. Verify input common-mode voltage and output swing under minimum and maximum load at every operating supply voltage.
Do not substitute an 8-pin PDIP amplifier solely because the package and pin count match. Compare offset voltage, input bias current, common-mode range, output swing, gain-bandwidth product, slew rate, noise, operating temperature, and qualification requirements. The verified LT1013IP maximum offset is 550 uV, so a replacement with a looser limit can dominate the error budget of a high-gain sensor amplifier even when its other headline specifications appear similar.
合規資訊
The verified web results do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. The operational amplifier is not presented as an automotive-qualified product, so AEC-Q100 is treated as not applicable rather than qualified.