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Analog Devices Inc. LTC1047CSW#TRPBF
- Part No.:
- LTC1047CSW#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LTC1047CSW#TRPBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
LTC1047CSW#TRPBF from Analog Devices (formerly Linear Technology) is a dual micropower zero-drift operational amplifier in a 16-pin SOIC-Wide package, delivering ±3 µV typical input offset voltage, ±50 nV/°C max drift, and 110 dB minimum CMRR. It operates from 4.75 V to 16 V single supply, supports rail-to-rail output swing to GND, and targets precision DC signal conditioning in battery-powered instrumentation and sensor front-ends.
For engineers reviewing the LTC1047CSW#TRPBF datasheet, LTC1047CSW#TRPBF pinout, LTC1047CSW#TRPBF application, or LTC1047CSW#TRPBF equivalent, key selection criteria include micropower consumption (80 µA/amplifier), chopper-stabilized architecture with integrated sampling capacitors, single-supply compatibility down to 4.75 V, and guaranteed performance across 0°C to 70°C ambient.
Technical Context
The LTC1047CSW#TRPBF implements a fully integrated chopper-stabilized architecture with on-chip sampling capacitors-eliminating external hold capacitors required by legacy chopper amplifiers. Its internal 680 Hz sampling frequency enables continuous DC accuracy correction without external timing components.
It features dual independent amplifiers sharing a common V+ and V– supply, with input common-mode range extending to V– and output capable of swinging within millivolts of V–. The design supports high-impedance sensor interfaces via pA-level input bias current (±30 pA max) and ultra-low 0.1–10 Hz input noise (3.5 µVP-P).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±10 µV max - ensures ≤10 µV DC error at input without trimming in precision gain stages |
| Offset Drift | ±50 nV/°C max - maintains sub-0.1 µV drift over 50°C ambient change for stable long-term calibration |
| Supply Current | 80 µA per amplifier - enables multi-year operation on coin-cell batteries in portable sensors |
| CMRR | 110 dB min - rejects >3.2 V of common-mode interference at 60 Hz in thermocouple amplifiers |
| Slew Rate | 0.2 V/µs - sufficient for <100 Hz step response in strain gauge bridge outputs with 100 mV full-scale |
| Gain Bandwidth | 200 kHz - supports closed-loop gains up to 200 with stable phase margin in instrumentation configurations |
| Single-Supply Range | 4.75 V to 16 V - interoperable with TTL logic rails and industrial 12 V systems without level-shifting |
Pinout & Package
Package: 16-lead plastic SOIC-Wide (SW), 0.300-inch body width, JEDEC MS-013AC compliant, θJA = 200°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 9, 10, 13, 14, 15, 16 | No Connect (NC) | Unused pins; must be left floating or tied to GND per layout best practice-no internal connection |
| 3, 12 | Output A / Output B | Amplifier outputs; each drives ≥10 kΩ load while maintaining rail-to-GND swing |
| 4, 11 | Inverting Input A / B | Differential inputs with 12 pF capacitance; require guard traces when used with >10 MΩ source impedances |
| 5, 10 | Non-Inverting Input A / B | Matched to inverting inputs; enable true differential sensing with matched PCB routing |
| 6, 7 | V– / V+ | Shared dual-amplifier power rails; decoupling capacitor (0.1 µF) required at V+ pin for stability |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitors required | On-die sampling capacitors eliminate external CH/CS components-reducing BOM count and board area by ≥3 parts per channel |
| Ground-sensing input range | Common-mode input extends to V–, enabling direct interface with 0 V-referenced bridges and thermocouples without level shifters |
| Rail-to-ground output swing | Output reaches within mV of V–, preserving full dynamic range in single-supply data acquisition systems |
| 70 ms overload recovery | Recovers from saturation 4× faster than discrete-capacitor chopper amps-critical for fast-cycling sensor excitation schemes |
| Pin-compatible upgrade path | Replaces industry-standard dual op amps (e.g., LM358, OP27) without PCB redesign-retaining footprint and routing |
Applications
| Thermocouple Amplifiers | Electronic Scales |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltages from K-type thermocouples in HVAC controllers with 0.1°C resolution. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with cold-junction compensation interface, operating continuously at 25°C ambient. Use Value: ±10 µV offset and ±50 nV/°C drift limit total error to <0.5°C over 0–100°C measurement range without calibration. | Use Scenario: Reading mV outputs from 350 Ω strain-gauge load cells in handheld weighing devices powered by two AA batteries. IC Role / Device Role / Timing Role: Low-power instrumentation amplifier front-end with 1000× gain and 50 Hz notch filtering. Use Value: 80 µA supply current per amplifier extends battery life to >2 years; 110 dB CMRR rejects EMI from nearby switching regulators. |
| Battery-Powered Instrumentation | Remote Located Sensors |
Use Scenario: Portable pH meter with electrode amplifier, requiring stable DC gain and low self-heating during 24-hour field logging. IC Role / Device Role / Timing Role: Micropower transimpedance amplifier converting pA-level electrode current to voltage with 150 dB open-loop gain. Use Value: 3.5 µVP-P (0.1–10 Hz) input noise ensures <0.01 pH resolution; 150 µA total supply enables 1000+ hours on CR2032. | Use Scenario: Wireless temperature node using RTD sensor, transmitting data every 5 minutes via LoRaWAN. IC Role / Device Role / Timing Role: Precision ratiometric ADC driver with programmable gain, activated only during 100 ms measurement bursts. Use Value: Zero-drift architecture eliminates baseline drift between readings; NC pins simplify compact 16-pin SOIC layout for RF module integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8628ARZ | Single-channel, 1.5 µV max offset, 0.005 µV/°C drift, 1 MHz GBW, SOIC-8 | Requires two units for dual functionality; higher bandwidth but no integrated chopper capacitors | Select when higher speed (>100 kHz) or lower drift (<10 nV/°C) is prioritized over channel count and component count |
| LTC2050CMS8#TRPBF | Dual-channel, 3 µV max offset, 0.01 µV/°C drift, 3 MHz GBW, MSOP-8 | Smaller 8-pin MSOP package, higher slew rate (1.3 V/µs), but requires external capacitors and lacks SW package option | Select when board space is constrained and higher bandwidth is needed, accepting added external components |
Compared with AD8628ARZ and LTC2050CMS8#TRPBF, the LTC1047CSW#TRPBF uniquely combines dual-channel zero-drift operation, integrated chopper capacitors, and 16-pin SOIC-Wide packaging-enabling drop-in replacement of legacy dual op amps while reducing system-level calibration burden and external part count.
Availability
LTC1047CSW#TRPBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, electronic scales, and battery-powered instrumentation requiring stable component supply, long-lifecycle support, and guaranteed parametric compliance across 0°C to 70°C.
Supply support for LTC1047CSW#TRPBF 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, Inc. (ADI) is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
The LTC1047 product line was developed by Linear Technology (acquired by ADI in 2017) to address ultra-low-drift, micropower signal conditioning in sensor interfaces-targeting applications where DC accuracy, battery life, and minimal external components are critical.
FAQ
What is the maximum operating temperature range for the LTC1047CSW#TRPBF?
The LTC1047CSW#TRPBF is specified for operation from 0°C to 70°C ambient temperature. Its absolute maximum junction temperature is 110°C, and thermal resistance θJA is 200°C/W in the 16-lead SOIC-Wide package. For extended temperature applications, consult Analog Devices' factory for qualified variants such as the LTC1047ISW.
Does the LTC1047CSW#TRPBF require external capacitors for chopper stabilization?
No, the LTC1047CSW#TRPBF does not require external capacitors for chopper stabilization. It integrates all necessary sampling and hold capacitors on-die-unlike earlier chopper amplifiers-eliminating CH and CS pins and reducing external component count by up to four per channel.
Can the LTC1047CSW#TRPBF operate from a single 5 V supply?
Yes, the LTC1047CSW#TRPBF supports single-supply operation from 4.75 V to 16 V. With V– tied to ground and V+ at 5 V, its input common-mode range includes 0 V and its output swings to within millivolts of ground-making it ideal for 5 V microcontroller-based sensor nodes.
What is the typical input bias current of the LTC1047CSW#TRPBF?
The typical input bias current of the LTC1047CSW#TRPBF is ±5 pA, with a maximum of ±30 pA over temperature. This ultra-low bias enables accurate amplification of high-impedance sources such as piezoelectric sensors and pH electrodes without significant loading error.
Is the LTC1047CSW#TRPBF pin-compatible with standard dual op amp packages?
Yes, the LTC1047CSW#TRPBF uses a 16-pin SOIC-Wide footprint that maps functional pins (OUT A, –IN A, +IN A, V–, V+, OUT B, –IN B, +IN B) to positions compatible with industry-standard dual op amp layouts-allowing direct substitution in existing designs without PCB modification.
LTC1047CSW#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Chopper (Zero-Drift)
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.2V/µs
- Gain Bandwidth Product:
- 200 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5 pA
- Voltage - Input Offset:
- 3 µV
- Current - Supply:
- 80µA (x2 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 4.75 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
LTC1047CSW#TRPBF FAQ
1.How can I place an order for LTC1047CSW#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1047CSW#TRPBF 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 LTC1047CSW#TRPBF reliable?
The price and inventory of LTC1047CSW#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1047CSW#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1047CSW#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1047CSW#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1047CSW#TRPBF?
LTC1047CSW#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1047CSW#TRPBF 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 LTC1047CSW#TRPBF?
For technical support, including LTC1047CSW#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1047CSW#TRPBF requirements.
6.How does Aetrix verify that LTC1047CSW#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1047CSW#TRPBF 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 LTC1047CSW#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1047CSW#TRPBF?
All LTC1047CSW#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1047CSW#TRPBF, 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 LTC1047CSW#TRPBF part is unused and in its original packaging.
Return procedure for LTC1047CSW#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC1047CSW#TRPBF Tags
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