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Analog Devices Inc. LTC1150CN8#PBF
- Part No.:
- LTC1150CN8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LTC1150CN8#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:845
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Product details
Overview
LTC1150CN8#PBF from Analog Devices (formerly Linear Technology) is a high-voltage, zero-drift chopper-stabilized operational amplifier in an 8-lead PDIP package. It delivers ±0.5µV typical input offset voltage, 0.01µV/°C drift, 1.8µVP-P (0.1Hz–10Hz) noise, 135dB minimum open-loop gain, and operates from ±16V supplies or single 4.75V–32V rails - ideal for precision DC-coupled instrumentation such as strain gauge and thermocouple amplifiers.
For engineers reviewing the LTC1150CN8#PBF datasheet, LTC1150CN8#PBF pinout, LTC1150CN8#PBF application, or LTC1150CN8#PBF equivalent, key selection criteria include verified ultra-low offset/drift performance, internal sampling capacitors eliminating external components, programmable supply current via Pin 1, and compatibility with ±15V industrial sensor signal chains requiring sub-microvolt stability.
Technical Context
The LTC1150CN8#PBF employs a proprietary high-voltage CMOS chopper architecture with integrated sample-and-hold capacitors, enabling true zero-drift operation without external capacitor networks. Its internal 2.2kHz clock (or externally synchronized 100Hz–1800Hz input on Pin 5) drives a dual-sampling correction loop that nulls input offset and drift across temperature.
Pin 1 provides supply current programming: floating or tied to V+ yields 0.8mA typical consumption; grounding reduces it to 200µA. Pin 8 outputs the internal clock signal at ~2.2kHz (VH = VS, VL = VS – 4.6V), supporting synchronization of multiple LTC1150 units in multi-channel systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±0.5µV typical - enables direct measurement of µV-level sensor outputs without manual nulling. |
| Offset Drift | ±0.01µV/°C typical - ensures stable DC accuracy over industrial temperature ranges (–40°C to +85°C). |
| 0.1Hz–10Hz Noise | 1.8µVP-P - supports high-resolution data acquisition in low-frequency sensor interfaces. |
| Open-Loop Gain | 135dB minimum - guarantees <1ppm gain error in closed-loop configurations with gain ≥1000. |
| Supply Range | ±16V max (32V total) - accommodates legacy ±15V industrial power rails and wide single-supply operation (4.75V–32V). |
| CMRR / PSRR | 110dB / 120dB minimum - rejects common-mode interference and supply ripple in noisy environments. |
| Slew Rate | 3V/µs - sufficient for settling 12-bit precision in <1µs under moderate capacitive loads. |
| Gain Bandwidth | 2.5MHz - supports stable unity-gain buffering and closed-loop gains up to ~1000 at DC–1kHz. |
Pinout & Package
Package: 8-lead plastic dual-in-line (PDIP), N8 package, 0.300-inch width, JEDEC MS-001 compliant. Operating junction temperature range: –40°C to +85°C (C-grade), θJA = 200°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (ISUPPLY) | Supply Current Programming Input | Grounding reduces quiescent current from 0.8mA to 200µA; floating or tied to V+ selects full performance mode. |
| Pin 2 (–IN) | Inverting Input | High-impedance node (±20pA bias current) for feedback network connection in standard op-amp configurations. |
| Pin 3 (+IN) | Noninverting Input | DC-coupled input accepting common-mode voltages down to ground - critical for single-supply sensor interfaces. |
| Pin 4 (V–) | Negative Supply Rail | Supports bipolar operation down to –16V; also serves as reference for Pin 1 current programming resistor. |
| Pin 5 (EXT CLOCK IN) | External Clock Input | AC-coupled interface accepts 2Vpp+ clocks; internal chopping frequency = fCLK/4; defaults to internal oscillator if left open. |
| Pin 6 (OUT) | Amplifier Output | Capable of ±14.5V swing into 10kΩ load - drives ADC drivers, precision references, or downstream buffers directly. |
| Pin 7 (V+) | Positive Supply Rail | Accepts up to +16V; powers internal chopper circuitry and output stage with rail-to-rail capability. |
| Pin 8 (CLOCK OUT) | Internal Clock Output | Provides 2.2kHz square wave (VH = VS, VL = VS – 4.6V) for synchronizing slave LTC1150 units or external timing circuits. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Chopper Capacitors | Eliminates need for two external 100pF–1nF sample-and-hold capacitors - reduces PCB area and layout sensitivity. |
| Programmable Quiescent Current | 0.2mA to 0.8mA via Pin 1 - enables trade-off between power budget and noise/precision in battery-powered instruments. |
| Ground-Referenced Input Common Mode | VCM includes 0V on both inputs - allows direct interfacing with grounded sensors (e.g., bridge transducers, RTDs) without level-shifting. |
| Internal Clock Synchronization | Pin 8 clock output and Pin 5 input support deterministic multi-amplifier timing - prevents beat frequencies in parallel channel systems. |
| High-Voltage CMOS Process | Enables 32V total supply operation while maintaining picoampere input bias - suitable for ±15V industrial control and test equipment. |
| Overload Recovery | 20ms recovery from negative saturation - predictable settling behavior in fault-tolerant sensor front-ends. |
Applications
| Strain Gauge Amplifiers | Electronic Scales |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from load cells in industrial weighing systems. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with sub-µV offset stability over temperature cycles. Use Value: Enables 1:100,000 resolution (0.001% FS) without recalibration, meeting OIML R76 Class III requirements. |
Use Scenario: Signal conditioning for digital kitchen or retail scales using silicon strain gauges. IC Role / Device Role / Timing Role: Low-noise, zero-drift gain stage driving 24-bit sigma-delta ADCs with minimal drift-induced zero-error. Use Value: Maintains <10mg repeatability over 8-hour shifts without warm-up stabilization time. |
| Medical Instrumentation | Thermocouple Amplifiers |
Use Scenario: Front-end amplification of ECG electrode signals with DC-coupled baseline preservation. IC Role / Device Role / Timing Role: Ultra-low drift, low-noise op-amp in differential lead configuration rejecting motion artifacts. Use Value: Eliminates baseline wander caused by thermal EMF in copper-connector junctions (<0.1µV/min drift). |
Use Scenario: Cold-junction compensation and amplification of Type K thermocouple outputs (–200°C to +1350°C). IC Role / Device Role / Timing Role: High-PSRR, high-CMRR amplifier rejecting furnace EMI while preserving µV/°C sensitivity. Use Value: Achieves ±0.5°C accuracy over 0–100°C ambient range without active CJC hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zero-drift operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2057CN8#PBF | Lower 0.5µVP-P noise (0.1Hz–10Hz), higher 10MHz GBW, but requires external capacitors and lacks Pin 1 current programming. | Better for high-speed precision filtering; unsuitable where board space or external component count must be minimized. | Select LTC2057CN8#PBF only when bandwidth >1MHz is required and external capacitors are acceptable. |
| AD8551ARZ | Higher 3µVP-P noise, 1.5µV offset, no clock output/sync capability, but offers rail-to-rail output and lower 1.1mA supply current. | Preferred for 3.3V/5V single-supply portable devices where ±15V operation is unavailable. | Choose AD8551ARZ for cost-sensitive, low-voltage designs where sub-µV offset is secondary to supply flexibility. |
Compared with LTC2057CN8#PBF and AD8551ARZ, the LTC1150CN8#PBF uniquely combines integrated chopper capacitors, ±15V operation, Pin 1 current scaling, and Pin 8 clock sync - making it the only option for legacy ±15V instrumentation requiring zero external passive components and deterministic multi-unit timing.
Availability
LTC1150CN8#PBF is available at Aetrix Electronics and suitable for precision instrumentation, industrial weighing systems, and medical sensor front-ends requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for LTC1150CN8#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 full product support, documentation, and manufacturing continuity for all Linear ICs including the LTC1150 series.
The LTC1150 belongs to Linear's precision zero-drift op-amp family, designed specifically for DC-stable, low-noise amplification in sensor signal chains where thermal EMF and long-term drift dominate error budgets.
FAQ
What is the maximum supply voltage rating for the LTC1150CN8#PBF?
The LTC1150CN8#PBF has an absolute maximum total supply voltage (V+ to V–) of 32V, supporting operation from ±16V rails or single supplies up to 32V. Exceeding this rating risks permanent damage. The device is characterized for reliable operation at ±15V, which aligns with standard industrial power domains and ensures full specification compliance across its –40°C to +85°C operating range.
How does Pin 1 (ISUPPLY) affect the performance of the LTC1150CN8#PBF?
Pin 1 on the LTC1150CN8#PBF controls quiescent supply current: leaving it open or tying it to V+ sets 0.8mA typical consumption for full performance; grounding it reduces current to 200µA. This trade-off impacts noise (1.8µVP-P vs ~2.5µVP-P), slew rate (3V/µs vs ~1.5V/µs), and gain bandwidth (2.5MHz vs ~1.8MHz), making it a deliberate design lever for power-constrained precision applications.
Can the LTC1150CN8#PBF operate from a single 5V supply?
Yes, the LTC1150CN8#PBF supports single-supply operation from 4.75V to 32V. At 5V, its input common-mode range includes ground, and output swing reaches 0.15V to 4.85V into 10kΩ. However, PSRR is only guaranteed down to 4.7V, and noise/offset specs are optimized for ±15V - verify performance in your specific 5V application using the "Single Supply Instrumentation Amplifier" reference circuit (LTC1150 •TA01).
What is the function of Pin 8 (CLOCK OUT) on the LTC1150CN8#PBF?
Pin 8 of the LTC1150CN8#PBF outputs the internal 2.2kHz clock signal (VH = VS, VL = VS – 4.6V), enabling synchronization of multiple LTC1150 units in multi-channel systems. When driven by an external clock on Pin 5, Pin 8 is pulled high to VS. This feature eliminates inter-channel beat frequencies and ensures deterministic timing alignment critical for simultaneous sampling in precision DAQ systems.
Does the LTC1150CN8#PBF require external capacitors for chopper stabilization?
No, the LTC1150CN8#PBF integrates the two sample-and-hold capacitors required for chopper stabilization on-die - a key differentiator from earlier chopper op-amps like the LT1028. This eliminates external 100pF–1nF capacitors, reducing PCB footprint, layout sensitivity, and thermal EMF sources. The internal capacitors are trimmed during wafer test to ensure matched performance across temperature.
LTC1150CN8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 3V/µs
- Gain Bandwidth Product:
- 2.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 0.5 µV
- Current - Supply:
- 800µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 4.75 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LTC1150CN8#PBF FAQ
1.How can I place an order for LTC1150CN8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1150CN8#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 LTC1150CN8#PBF reliable?
The price and inventory of LTC1150CN8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1150CN8#PBF is usually 5 days.
3.What payment methods are accepted for LTC1150CN8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1150CN8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1150CN8#PBF?
LTC1150CN8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1150CN8#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 LTC1150CN8#PBF?
For technical support, including LTC1150CN8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1150CN8#PBF requirements.
6.How does Aetrix verify that LTC1150CN8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1150CN8#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 LTC1150CN8#PBF meets industry standards.
7.What is the process for return or replacement of LTC1150CN8#PBF?
All LTC1150CN8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1150CN8#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 LTC1150CN8#PBF part is unused and in its original packaging.
Return procedure for LTC1150CN8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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