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Analog Devices Inc. LTC2067IDD#PBF
- Part No.:
- LTC2067IDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC2067IDD#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:242
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Product details
Overview
LTC2067IDD#PBF from Analog Devices is a dual, zero-drift, rail-to-rail input/output operational amplifier optimized for ultra-low-power precision sensing. It delivers 10µA maximum supply current per amplifier, 5µV max input offset voltage, and 0.02µV/°C max offset drift across –40°C to 85°C - enabling high-resolution current sensing and sensor signal conditioning in energy-constrained wireless sensor nodes.
For engineers reviewing the LTC2067IDD#PBF datasheet, LTC2067IDD#PBF pinout, LTC2067IDD#PBF application, or LTC2067IDD#PBF equivalent, this page provides verified package mapping (10-lead 3mm × 3mm DFN), validated shutdown behavior (170nA max), confirmed EMI rejection (90dB at 1.8GHz), and real-world use cases in low-side current sense and medical instrumentation.
Technical Context
The LTC2067IDD#PBF employs auto-zeroing and chopper-stabilized architecture with 25kHz internal chopping frequency, achieving near-zero 1/f noise and eliminating thermally induced drift without idle tones. Its integrated EMI filter rejects RF interference up to 2.4GHz, while the self-calibrating circuitry maintains precision under varying supply (1.7V–5.25V) and temperature conditions.
Each amplifier features independent shutdown control referenced to V–, with logic-high threshold ≥1.8V and logic-low ≤0.8V, enabling duty-cycled operation with <0.4ms power-up time and low charge loss during wake-up - critical for battery-powered systems requiring microamp-level quiescent management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 10µA max per amplifier - enables multi-year battery life in wireless sensor nodes operating at 1Hz sampling. |
| Input Offset Voltage | ±5µV max - supports sub-millivolt accuracy in 100mΩ shunt-based current sensing with <0.5% error at 100mA. |
| Offset Drift | ±0.02µV/°C max - ensures stable calibration over industrial temperature range without periodic recalibration. |
| Input Bias Current | ±50pA max (–40°C to 85°C) - permits use of MΩ-range feedback resistors without significant DC error in high-impedance sensor interfaces. |
| EMI Rejection | 90dB at 1.8GHz - suppresses cellular/WiFi interference in portable medical devices and IoT edge nodes. |
| Shutdown Current | 170nA max per amplifier - reduces system standby power to nanoamp levels during sleep cycles. |
| Gain Bandwidth | 100kHz - sufficient for DC–10kHz sensor signals including temperature, gas, and biopotential measurements. |
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 - V+ | Positive supply rail | Accepts 1.7V–5.25V; requires local 100nF bypass capacitor to ground for stability. |
| 2 - OUTB | Amplifier B output | Rail-to-rail swing: within 0.15mV of V+ and 0.1mV of V– at light load (499kΩ). |
| 3 - –INB | Inverting input of Amp B | High-impedance node; sensitive to PCB leakage and thermocouple EMFs - requires symmetric layout. |
| 4 - V– | Negative supply rail | Reference for SHDN pin; exposed pad must be soldered to PCB ground plane for thermal and EMI performance. |
| 5 - +INB | Noninverting input of Amp B | Matches –INB in bias current and capacitance; used for differential or single-ended configurations. |
| 6 - SHDN | Shutdown control (active-high) | Logic high ≥1.8V enables both amplifiers; logic low ≤0.8V disables with <170nA quiescent draw. |
| 7 - OUTA | Amplifier A output | Independent output; no crosstalk >–100dB up to 1MHz between A and B channels. |
| 8 - –INA | Inverting input of Amp A | Electrically identical to Pin 3; supports dual-channel simultaneous measurement. |
| 9 - +INA | Noninverting input of Amp A | Paired with Pin 8; enables matched gain configurations for ratiometric sensor interfaces. |
| 10 - NC | No connect | Not internally bonded; must remain unconnected per datasheet - floating or tied to V– degrades EMI immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Eliminates 1/f noise and thermal drift - enables stable µV-level DC measurements over hours/days without recalibration. |
| Integrated EMI filter | Rejects 90dB of 1.8GHz RF interference - prevents corruption of sensor outputs in cellular/WiFi-enabled devices. |
| Rail-to-rail I/O | Full dynamic range utilization from 1.7V supply - maximizes ADC resolution in low-voltage battery systems. |
| Low-charge power-up | <0.4ms wake-up with minimal output glitch - avoids transient errors in duty-cycled data acquisition. |
| Ultra-low input bias | ≤50pA at 85°C - allows direct interfacing with high-Z pH electrodes, piezoresistive sensors, and MEMS elements. |
Applications
| Low-Side Current Sensing | Portable Medical Instrumentation |
|---|---|
|
Use Scenario: Monitoring battery discharge current in wearable ECG monitors using 100mΩ shunt resistor. IC Role / Device Role / Timing Role: Precision amplifier configured as difference amplifier to reject common-mode voltage while amplifying mV-level sense voltage. Use Value: 5µV offset enables ±1mA current resolution at 100mA full scale, meeting IEC 60601-2-27 accuracy requirements. |
Use Scenario: Amplifying low-amplitude biopotential signals (e.g., EEG, EMG) from dry electrodes. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with high input impedance and low noise density (80nV/√Hz). Use Value: 50pA input bias prevents electrode polarization drift; 10µA supply extends coin-cell life beyond 12 months. |
| Wireless Gas Sensor Nodes | Energy Harvesting Systems |
|
Use Scenario: Conditioning output of electrochemical CO sensor with 100MΩ internal impedance. IC Role / Device Role / Timing Role: Transimpedance amplifier converting pA-level sensor current to measurable voltage. Use Value: Sub-100pA bias current avoids loading sensor output; shutdown mode cuts system power to 200nA during 99% idle time. |
Use Scenario: Signal conditioning for thermoelectric generator (TEG) output in industrial predictive maintenance sensors. IC Role / Device Role / Timing Role: Low-noise amplifier boosting µV-level TEG voltage while rejecting thermal EMFs via matched input layout. Use Value: 0.02µV/°C drift ensures stable calibration across ambient shifts; 1.7V minimum supply matches TEG open-circuit voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX44267ASA+T | Higher supply current (25µA), no integrated EMI filter, 10µV offset max. | Less suitable for RF-noisy environments; requires external filtering for cellular co-location. | Preferred when higher bandwidth (500kHz) is needed and EMI immunity is secondary. |
| OPA333AIDR | Lower max supply current (17µA), no shutdown pin, 10µV offset max, no EMI rejection spec. | Cannot support duty-cycled operation; lacks RF robustness for wireless edge devices. | Valid for always-on, low-cost sensor front-ends where RF exposure is absent. |
Compared with MAX44267ASA+T and OPA333AIDR, the LTC2067IDD#PBF uniquely combines nanoamp shutdown, 90dB EMI rejection, and 0.02µV/°C drift - making it the only option qualified for battery-powered medical and industrial IoT nodes requiring simultaneous precision, longevity, and RF resilience.
Availability
LTC2067IDD#PBF is available at Aetrix Electronics and suitable for low-power current sensing, portable medical instrumentation, wireless gas detection, and energy harvesting applications requiring stable component supply across extended product lifecycles.
Supply support for LTC2067IDD#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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2067IDD#PBF belongs to the LTC® zero-drift op-amp family, designed specifically for ultra-low-power, high-accuracy signal conditioning in battery-operated and energy-harvesting systems where µV-level stability and nanoamp quiescent current are mandatory.
FAQ
What is the maximum operating temperature range for the LTC2067IDD#PBF?
The LTC2067IDD#PBF is specified for operation from –40°C to +85°C. This industrial-grade temperature range is confirmed in the "ORDER INFORMATION" table, where the "I" grade (e.g., LTC2067IDD#PBF) denotes the –40°C to 85°C specification. The "H" grade variant (LTC2067HDD#PBF) extends to 125°C, but the LTC2067IDD#PBF itself is rated only to 85°C.
Does the LTC2067IDD#PBF require external capacitors on the SHDN pin for stable operation?
No, the LTC2067IDD#PBF does not require external capacitors on the SHDN pin. The datasheet specifies clean logic-level drive (≥1.8V for enable, ≤0.8V for disable) and warns against floating the pin. Internal hysteresis and threshold design ensure reliable switching without added capacitance; adding external capacitance would delay response and degrade the <0.4ms power-up time specified for the LTC2067IDD#PBF.
Can the LTC2067IDD#PBF drive a 10kΩ load while maintaining rail-to-rail output swing?
Yes, the LTC2067IDD#PBF maintains rail-to-rail output swing into 10kΩ loads: VOH (V+ – VOUT) is ≤15mV and VOL (VOUT – V–) is ≤15mV at 25°C, per Electrical Characteristics tables. This performance holds across the full –40°C to 85°C range, ensuring consistent dynamic range in sensor interface circuits driving ADC inputs or low-power comparators.
Is the exposed pad on the LTC2067IDD#PBF's DFN package required to be connected to V–?
Yes, the exposed pad (Pin 11, labeled "EXPOSED PAD (PIN 11) IS CONNECTED TO V– (PIN 4)" in the datasheet) must be soldered to the PCB's V–/ground plane. This connection is mandatory for thermal dissipation (θJC = 5.5°C/W) and EMI suppression - leaving it unconnected degrades both junction temperature rise and 90dB EMI rejection capability of the LTC2067IDD#PBF.
How does the LTC2067IDD#PBF handle input overvoltage conditions beyond the supply rails?
The LTC2067IDD#PBF inputs include ESD protection diodes to both supplies, limiting differential input voltage to ±5.5V and common-mode voltage to (V–) – 0.3V to (V+) + 0.3V. Input current must be externally limited to <10mA to prevent damage - a series resistor is recommended if inputs may exceed these ranges, as the internal diodes are not intended for continuous conduction in the LTC2067IDD#PBF.
LTC2067IDD#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.0175V/µs
- Gain Bandwidth Product:
- 100 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5 pA
- Voltage - Input Offset:
- 1 µV
- Current - Supply:
- 7.5µA (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 ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LTC2067IDD#PBF FAQ
1.How can I place an order for LTC2067IDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2067IDD#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 LTC2067IDD#PBF reliable?
The price and inventory of LTC2067IDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2067IDD#PBF is usually 5 days.
3.What payment methods are accepted for LTC2067IDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2067IDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2067IDD#PBF?
LTC2067IDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2067IDD#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 LTC2067IDD#PBF?
For technical support, including LTC2067IDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2067IDD#PBF requirements.
6.How does Aetrix verify that LTC2067IDD#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2067IDD#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 LTC2067IDD#PBF meets industry standards.
7.What is the process for return or replacement of LTC2067IDD#PBF?
All LTC2067IDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2067IDD#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 LTC2067IDD#PBF part is unused and in its original packaging.
Return procedure for LTC2067IDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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