My Inquiry
My Account
Analog Devices Inc. LTC1047CSW#PBF
- Part No.:
- LTC1047CSW#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LTC1047CSW#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,678
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC1047CSW#PBF 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 offset voltage, 10 nV/°C drift, and 200 kHz gain bandwidth - designed for precision DC-coupled signal conditioning in battery-powered instrumentation such as thermocouple amplifiers and strain gauge interfaces.
For engineers reviewing the LTC1047CSW#PBF datasheet, LTC1047CSW#PBF pinout, LTC1047CSW#PBF application, or LTC1047CSW#PBF equivalent, key selection criteria include its single-supply operation down to 4.75 V, rail-to-rail output swing to GND, integrated sampling capacitors eliminating external components, and guaranteed 110 dB CMRR at DC.
Technical Context
The LTC1047CSW#PBF employs auto-zeroing chopper architecture with on-chip sampling capacitors, enabling true zero-drift performance without external hold capacitors. Its internal 680 Hz sampling frequency suppresses 1/f noise while minimizing aliasing through built-in correction circuitry.
Each amplifier features independent input stages with 12 pF input capacitance, common-mode input range extending to V–, and output capable of sinking to ground under 10 kΩ load. The device operates across 0°C to 70°C and supports total supply voltages from 4.75 V to 16 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±10 µV max - ensures sub-mV error in 1 V full-scale precision sensor interfaces |
| Offset Drift | ±50 nV/°C max - maintains <1 µV drift over 20°C ambient change |
| Supply Current per Amp | 80 µA typ at 25°C - enables multi-year battery life in portable instrumentation |
| CMRR | 110 dB min - rejects >100,000:1 common-mode interference in noisy industrial environments |
| PSRR | 105 dB min - suppresses power supply ripple to <0.0003% of supply variation |
| Slew Rate | 0.2 V/µs - supports stable closed-loop response up to ~20 kHz for DC-coupled sensors |
| Gain Bandwidth | 200 kHz - provides adequate phase margin for unity-gain stable configurations |
Pinout & Package
Package: 16-lead plastic SOIC-Wide (SW), 7.595 mm × 10.490 mm body, 1.27 mm pitch, RoHS-compliant lead-free finish (#PBF).
| 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 practices; no internal connection |
| 3, 12 | Output A / Output B | Amplifier outputs - swing to within mV of V–, support 10 kΩ minimum load |
| 4, 11 | Inverting Input A / B | Differential inputs - 12 pF capacitance requires guard traces or low-impedance sources above 10 kΩ |
| 5, 8 | Non-Inverting Input A / B | Differential inputs - common-mode range includes V–, enabling true single-supply sensor interfacing |
| 6 | Negative Supply (V–) | Ground reference for single-supply use or negative rail in split-supply systems |
| 7 | Positive Supply (V+) | Accepts 4.75 V to 16 V total supply - supports direct connection to 5 V or 12 V rails |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitors required | On-die sampling capacitors eliminate need for external CH/CS components - reduces board area and assembly cost |
| Rail-to-rail output swing to GND | Enables full dynamic range utilization in single-supply systems without level-shifting circuitry |
| Internal 680 Hz sampling clock | Optimized frequency balances 1/f noise reduction against aliasing risk - no external clock needed |
| Indefinite output short-circuit duration | Robust output stage withstands continuous short to V– or V+ - simplifies fault protection design |
| Pin-compatible with industry-standard dual op amps | 16-pin SW footprint aligns with legacy dual op amp layouts - enables drop-in upgrade path |
Applications
| Thermocouple Amplifiers | Electronic Scales |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltages from K-type thermocouples in HVAC controllers. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with ultra-low offset and drift. Use Value: Achieves ±0.5°C accuracy over 0–100°C range without calibration, enabled by <10 µV offset and <50 nV/°C drift. | Use Scenario: Signal conditioning for 350 Ω strain gauge bridges in portable weighing devices. IC Role / Device Role / Timing Role: Low-noise, micropower differential amplifier driving 24-bit sigma-delta ADCs. Use Value: Delivers 95 nVP-P (0.1–10 Hz) input-referred noise and 80 µA supply current - extends AA battery life to >2 years. |
| Battery-Powered Instrumentation | Remote Located Sensors |
Use Scenario: Portable pH meters requiring stable DC gain and minimal self-heating. IC Role / Device Role / Timing Role: Dual-channel signal conditioner powering reference buffers and sensor amplifiers. Use Value: 150 dB open-loop gain and 110 dB CMRR maintain measurement integrity despite varying battery voltage (4.75–16 V). | Use Scenario: 4–20 mA loop-powered transducer interface in oil-field pressure sensors. IC Role / Device Role / Timing Role: Precision current-output amplifier with 4.75 V minimum supply headroom. Use Value: Guaranteed operation at 4.75 V allows direct use of loop-derived power - eliminates local LDO. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual zero-drift operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8628ARZ | Single amplifier, 8-lead SOIC; 1 µV max offset, 0.002 µV/°C drift; higher 2.5 V/µs slew rate | Requires two units for dual-channel designs; better for high-speed precision but increases PCB area and BOM count | Select when single-channel performance outweighs channel density and board space constraints |
| LTC2050CMS8#PBF | Dual amplifier, 8-lead MSOP; 3 µV max offset, 10 nV/°C drift; 1.5 V/µs slew rate; 3 MHz GBW | Smaller 3 mm × 3 mm package; higher bandwidth but 180 µA supply current per amp - less suitable for ultra-low-power apps | Select when space-constrained layouts demand MSOP and bandwidth >200 kHz is required |
Compared with AD8628ARZ and LTC2050CMS8#PBF, the LTC1047CSW#PBF uniquely combines dual-channel integration, 16-pin wide-body SOIC for thermal stability, 80 µA supply current, and guaranteed 4.75 V operation - making it optimal for battery-powered dual-sensor systems where power, precision, and layout compatibility are jointly critical.
Availability
LTC1047CSW#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, electronic scales, and battery-powered instrumentation requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LTC1047CSW#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; Linear pioneered high-precision analog ICs including zero-drift op amps, references, and regulators for demanding industrial and instrumentation markets.
The LTC1047 product line was engineered specifically for ultra-low-offset, micropower DC signal conditioning - targeting applications where traditional op amps introduce unacceptable drift, noise, or power overhead in sensor front-ends.
FAQ
What is the maximum operating temperature range for the LTC1047CSW#PBF?
The LTC1047CSW#PBF is specified for an operating temperature range of 0°C to 70°C. 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' qualified variants or derating guidelines.
Does the LTC1047CSW#PBF require external capacitors for chopper stabilization?
No, the LTC1047CSW#PBF integrates all necessary sampling and hold capacitors on-die. This eliminates external CH and CS capacitors required by earlier chopper amplifiers, reducing component count, board area, and sensitivity to PCB leakage - a key advantage confirmed in the device's "No External Components Required" feature.
Can the LTC1047CSW#PBF operate from a single 5V supply?
Yes, the LTC1047CSW#PBF supports single-supply operation from 4.75V to 16V total supply. Its input common-mode range includes V– (GND), and its output swings to within millivolts of V–, enabling true rail-to-rail input/output operation with a 5V supply - verified in Typical Application TA01 and TA02 schematics.
What is the overload recovery time of the LTC1047CSW#PBF?
The LTC1047CSW#PBF has a typical overload recovery time of 70ms from saturation, which is four times faster than chopper amplifiers requiring external capacitors. This value is measured under standard conditions (±5V supplies, RL = 100kΩ) and is specified in the Electrical Characteristics table on page 2 of the datasheet.
Is the LTC1047CSW#PBF pin-compatible with standard 8-pin dual op amps?
No - the LTC1047CSW#PBF uses a 16-pin SOIC-Wide package with NC pins occupying positions not used in 8-pin dual op amps. However, the datasheet states it is "pin compatible with industry standard dual op amps" in functional layout: its active pins (3,4,5,6,7,8,11,12) map to standard dual op amp functions, and the wider body accommodates internal capacitors without altering signal routing.
LTC1047CSW#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- 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#PBF FAQ
1.How can I place an order for LTC1047CSW#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1047CSW#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 LTC1047CSW#PBF reliable?
The price and inventory of LTC1047CSW#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1047CSW#PBF is usually 5 days.
3.What payment methods are accepted for LTC1047CSW#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1047CSW#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1047CSW#PBF?
LTC1047CSW#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1047CSW#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 LTC1047CSW#PBF?
For technical support, including LTC1047CSW#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1047CSW#PBF requirements.
6.How does Aetrix verify that LTC1047CSW#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1047CSW#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 LTC1047CSW#PBF meets industry standards.
7.What is the process for return or replacement of LTC1047CSW#PBF?
All LTC1047CSW#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1047CSW#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 LTC1047CSW#PBF part is unused and in its original packaging.
Return procedure for LTC1047CSW#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC1047CSW#PBF Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
