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Analog Devices Inc. LTC2064HDD#TRPBF
- Part No.:
- LTC2064HDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC2064HDD#TRPBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,938
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Product details
Overview
LTC2064HDD#TRPBF from Analog Devices is a dual, zero-drift, micropower operational amplifier in a 10-lead (3mm × 3mm) plastic DFN package, rated for –40°C to 125°C operation. It delivers 2µA maximum supply current per amplifier, 5µV max input offset voltage, and 0.02µV/°C max offset drift - enabling high-resolution sensor signal conditioning in ultra-low-power systems such as wireless gas sensors and energy-harvesting nodes.
For engineers reviewing the LTC2064HDD#TRPBF datasheet, LTC2064HDD#TRPBF pinout, LTC2064HDD#TRPBF application, or LTC2064HDD#TRPBF equivalent, key selection criteria include its rail-to-rail I/O, 1.7V–5.25V supply range, integrated EMI filter (114dB rejection at 1.8GHz), shutdown current ≤170nA, and guaranteed performance over extended temperature.
Technical Context
The LTC2064HDD#TRPBF employs auto-zeroing and chopper-stabilized architecture with 5kHz internal chopping frequency, achieving near-zero DC errors while suppressing 1/f noise. Its self-calibrating circuitry continuously corrects input offset and drift without introducing idle tones or significant clock feedthrough artifacts.
It features dual independent amplifiers sharing a common shutdown pin (SHDN), rail-to-rail input and output stages, and an integrated EMI filter optimized for robust operation in noisy RF environments - critical for portable instrumentation and industrial sensor nodes operating near cellular/Wi-Fi bands.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 2µA max per amplifier - enables multi-year battery life in duty-cycled sensor nodes. |
| Input Offset Voltage | 5µV max - supports µV-level precision in low-amplitude transducer interfaces (e.g., thermopiles, strain gauges). |
| Offset Drift | 0.02µV/°C max - ensures stable DC accuracy across automotive and industrial temperature ranges. |
| Input Bias Current | 100pA max (–40°C to 125°C) - allows use of MΩ-range feedback resistors without significant error. |
| EMI Rejection | 114dB at 1.8GHz - suppresses RF interference from nearby cellular/Wi-Fi antennas without external filtering. |
| Shutdown Current | 170nA max per amplifier - reduces system power during sleep cycles in energy-harvesting applications. |
| Gain Bandwidth | 20kHz - sufficient for slow-varying sensor signals (e.g., O₂, CO, temperature) with minimal phase lag. |
Pinout & Package
Package: 10-lead (3mm × 3mm) plastic DFN with exposed pad connected to V– (pin 4). Thermal resistance θJA = 43°C/W, θJC = 5.5°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 9, 10 | NC / Exposed Pad (Pin 11) | Not internally connected; exposed pad must be soldered to PCB ground plane for thermal and EMI performance. |
| 4 | V– | Negative supply rail - reference for SHDN threshold and return path for exposed pad. |
| 5 | SHDN | Active-low shutdown control - logic low (≤0.65V vs V–) disables both amplifiers; logic high (≥1.8V vs V–) enables. |
| 6, 7 | OUTA, OUTB | Amplifier A and B outputs - rail-to-rail swing supports full dynamic range into low-voltage ADCs. |
| 8 | –INB | Inverting input of amplifier B - matched with +INB for differential gain configurations. |
| 10 | +INA | Noninverting input of amplifier A - high-impedance node optimized for low-bias-current sensor interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Self-calibrating circuitry eliminates 1/f noise and maintains <5µV offset over time and temperature. |
| Rail-to-rail I/O | Full-swing input and output enable operation from 1.7V supply while preserving signal headroom in low-voltage systems. |
| Integrated EMI filter | On-chip RC network provides 114dB rejection at 1.8GHz - eliminates need for external ferrite beads or LC filters. |
| Low-charge power-up | Minimal output transient during wake-up avoids disturbing sensitive downstream circuitry in duty-cycled designs. |
| High CMRR & PSRR | 108dB min CMRR and 106dB min PSRR - rejects common-mode noise and supply ripple in unregulated battery-powered systems. |
Applications
| Oxygen Sensor Signal Conditioning | Wireless Gas Detection Node |
|---|---|
|
Use Scenario: Amplifying low-level mV output from electrochemical oxygen sensors (e.g., City Technology 40XV) in portable safety monitors. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with ultra-low input bias current to avoid sensor loading and offset drift. Use Value: Enables 1.4µA active supply current and 90nA shutdown mode - extends single-CR2032 battery life beyond 5 years. |
Use Scenario: Front-end amplification in battery-powered CO or NO₂ sensor modules transmitting via Bluetooth LE. IC Role / Device Role / Timing Role: Dual-channel signal conditioner for sensor and reference channel, synchronized shutdown control. Use Value: Integrated EMI filter prevents RF-induced measurement errors without adding board area or BOM cost. |
| Energy-Harvesting Temperature Monitor | Medical Wearable Biosensor |
|
Use Scenario: Amplifying thermistor or RTD bridge outputs in solar- or thermal-harvested environmental loggers. IC Role / Device Role / Timing Role: Low-power, high-precision op-amp driving SAR ADC with minimal offset error over –40°C to 125°C. Use Value: 0.02µV/°C drift ensures <0.1°C accuracy drift over full temperature range - critical for calibration stability. |
Use Scenario: Front-end amplification of dry-electrode ECG or skin impedance signals in patch-style wearables. IC Role / Device Role / Timing Role: Dual amplifier for lead-I/lead-II derivation and right-leg drive reference buffering. Use Value: 100pA max input bias current prevents polarization errors on high-impedance dry electrodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision micropower op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8500ARJZ-R7 | Single-channel, 0.9µA typical supply current, 10µV max VOS, no shutdown, SOT-23-5 | Lacks dual-channel integration and shutdown - requires two devices and external enable logic for equivalent functionality. | Preferred when lowest quiescent current is paramount and dual-channel operation is not required. |
| MCP6V81-E/SN | Dual-channel, 600nA typical supply current, 15µV max VOS, 0.5µV/°C drift, SOIC-8 | Higher drift and offset - unsuitable for µV-level DC measurements but offers lower cost and wider availability. | Appropriate for cost-sensitive industrial monitoring where ±0.5°C temperature accuracy is acceptable. |
Compared with AD8500ARJZ-R7 and MCP6V81-E/SN, the LTC2064HDD#TRPBF uniquely combines dual-channel zero-drift performance, 170nA shutdown, and 114dB EMI rejection in a compact DFN - making it optimal for space-constrained, RF-noisy, battery-critical applications requiring long-term DC stability.
Availability
LTC2064HDD#TRPBF is available at Aetrix Electronics and suitable for oxygen sensing, wireless gas detection, and energy-harvesting temperature monitoring requiring stable component supply across extended temperature and long production lifecycles.
Supply support for LTC2064HDD#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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2063/LTC2064/LTC2065 family was designed specifically for ultra-low-power, high-precision DC signal chains in battery- and energy-harvesting–powered sensor systems - prioritizing micropower operation without sacrificing offset, drift, or EMI robustness.
FAQ
What is the maximum operating temperature range for the LTC2064HDD#TRPBF?
The LTC2064HDD#TRPBF is specified for continuous operation from –40°C to +125°C ambient temperature. This H-grade qualification makes it suitable for under-hood automotive, industrial process control, and outdoor environmental monitoring applications where thermal stress exceeds standard commercial-grade limits. The device maintains all key specifications - including 5µV max input offset and 170nA max shutdown current - across this full range.
Does the LTC2064HDD#TRPBF require external capacitors for stability?
The LTC2064HDD#TRPBF is unity-gain stable and does not require external compensation capacitors for basic configurations. However, when driving capacitive loads >100pF (e.g., long PCB traces or ADC input capacitance), a small series resistor (10–50Ω) between the output and load is recommended to maintain phase margin. The datasheet confirms stable operation with CL = 100pF and RL = 499kΩ, and the internal EMI filter further enhances high-frequency robustness without added components.
How does the SHDN pin function on the LTC2064HDD#TRPBF?
The SHDN pin on the LTC2064HDD#TRPBF is referenced to V– and operates as an active-low enable: tying SHDN to V– (0V relative to V–) places both amplifiers in shutdown mode with ≤170nA total supply current; tying SHDN to V+ (or ≥1.8V above V–) enables normal operation. The pin has defined logic thresholds (VL ≤0.65V, VH ≥1.8V) and draws only –150nA to –20nA, allowing direct interface with microcontroller GPIOs without level-shifting or pull-up resistors.
Can the LTC2064HDD#TRPBF be used with a 1.7V supply?
Yes, the LTC2064HDD#TRPBF is fully specified for operation from 1.7V to 5.25V supply voltage. At 1.7V, it maintains rail-to-rail input and output swing, 2µA max supply current, and 5µV max input offset - enabling compatibility with single-cell LiFePO₄ (2.0–3.6V) or alkaline (1.7–1.5V decay) batteries. Performance metrics including GBW (20kHz), CMRR (103dB min), and PSRR (108dB min) are guaranteed across the entire supply range.
What is the purpose of the exposed pad on the LTC2064HDD#TRPBF DFN package?
The exposed pad (pin 11) on the LTC2064HDD#TRPBF is electrically connected to V– and must be soldered to a PCB copper pour tied to the system ground plane. This connection provides critical thermal dissipation (θJA = 43°C/W) and improves EMI immunity by lowering high-frequency impedance between the die and system reference. Leaving the pad unconnected degrades thermal performance and compromises the 114dB EMI rejection capability verified in the datasheet.
LTC2064HDD#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.0035V/µs
- Gain Bandwidth Product:
- 20 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 1 µV
- Current - Supply:
- 1.4µA (x2 Channels)
- Current - Output / Channel:
- 51 mA
- Voltage - Supply Span (Min):
- 1.7 V
- Voltage - Supply Span (Max):
- 5.25 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LTC2064HDD#TRPBF FAQ
1.How can I place an order for LTC2064HDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2064HDD#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 LTC2064HDD#TRPBF reliable?
The price and inventory of LTC2064HDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2064HDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2064HDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2064HDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2064HDD#TRPBF?
LTC2064HDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2064HDD#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 LTC2064HDD#TRPBF?
For technical support, including LTC2064HDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2064HDD#TRPBF requirements.
6.How does Aetrix verify that LTC2064HDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2064HDD#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 LTC2064HDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2064HDD#TRPBF?
All LTC2064HDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2064HDD#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 LTC2064HDD#TRPBF part is unused and in its original packaging.
Return procedure for LTC2064HDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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