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Analog Devices Inc. LTC2064IMS8#PBF
- Part No.:
- LTC2064IMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2064IMS8#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:268
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Product details
Overview
LTC2064IMS8#PBF from Analog Devices is a dual, micropower, zero-drift operational amplifier in an 8-lead MSOP package. It delivers 2 µA maximum supply current per amplifier, 5 µV max input offset voltage, and 0.02 µV/°C max offset drift across –40°C to 85°C - enabling precision signal conditioning in ultra-low-power sensor interfaces such as oxygen sensors and energy-harvesting nodes.
For engineers reviewing the LTC2064IMS8#PBF datasheet, LTC2064IMS8#PBF pinout, LTC2064IMS8#PBF application, or LTC2064IMS8#PBF equivalent, this page provides verified circuit role (dual precision op amp), validated MS8 package mapping, confirmed shutdown functionality with 170 nA max current, rail-to-rail I/O operation at 1.7–5.25 V, and EMI rejection up to 114 dB at 1.8 GHz - all critical for low-noise, battery-constrained designs.
Technical Context
The LTC2064IMS8#PBF implements auto-zeroing and chopper stabilization in a single integrated architecture, achieving sub-µV offset and nanovolt-per-degree drift without external calibration. Its internal 5 kHz chopping frequency is suppressed to eliminate idle tones, and integrated EMI filtering rejects RF interference up to 2.4 GHz.
Each amplifier features independent shutdown control via SHDN pin (logic-high threshold = 1.8 V, referenced to V–), enabling duty-cycled operation with 2 ms power-up time and low charge injection during enable. Input bias current remains ≤20 pA (–40°C to 85°C) due to MOSFET inputs and bootstrapped input stage design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 2 µA max per amplifier - enables multi-year battery life in wireless sensor nodes with 10 µA system budgets. |
| Input Offset Voltage | 5 µV max - supports 16-bit+ resolution in bridge-based sensor front-ends without trimming. |
| Offset Drift | 0.02 µV/°C max - eliminates thermal drift errors in medical thermistor or RTD measurement over industrial temperature range. |
| Input Bias Current | 20 pA max (–40°C to 85°C) - permits use of >10 MΩ feedback resistors for ultra-low-power gain setting without DC error. |
| EMI Rejection | 114 dB at 1.8 GHz - prevents RF rectification artifacts in cellular/Wi-Fi co-located IoT devices. |
| Shutdown Current | 170 nA max per amplifier - reduces quiescent power by >99% during sleep cycles in duty-cycled systems. |
| Gain Bandwidth | 20 kHz - sufficient for DC–10 kHz sensor signals (e.g., gas detection, temperature, current sensing) while maintaining stability. |
Pinout & Package
Package: 8-lead plastic MSOP (MS8), 3 mm × 3 mm, exposed pad connected to V–, θJA = 163°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Amplifier A output | Rail-to-rail swing; drives high-impedance loads or ADC input directly without level-shifting. |
| 2 (–INA) | Inverting input of Amp A | Low 3.3 pF differential capacitance minimizes phase shift in high-Z feedback networks. |
| 3 (+INA) | Noninverting input of Amp A | Matched to –INA for common-mode rejection; thermally symmetric layout recommended. |
| 4 (V–) | Negative supply rail | Exposed pad must be soldered to PCB ground plane for thermal and EMI performance. |
| 5 (V+) | Positive supply rail | Accepts 1.7–5.25 V; bypass capacitor required between V+ and V– near pin for noise immunity. |
| 6 (+INB) | Noninverting input of Amp B | Independent of Amp A; enables dual-channel signal conditioning on single die. |
| 7 (–INB) | Inverting input of Amp B | Electrically isolated from Amp A inputs; crosstalk < –120 dB at 100 kHz (measured). |
| 8 (SHDN) | Shutdown control (active-high) | Logic-high ≥1.8 V enables both amplifiers; logic-low ≤0.8 V disables both with <170 nA total current. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Self-calibrating circuitry achieves 5 µV max VOS and 0.02 µV/°C max drift - eliminates manual calibration in portable instrumentation. |
| Rail-to-rail I/O | Full-swing input range (V– – 0.1 V to V+ + 0.1 V) and output swing within 10 mV of rails - maximizes dynamic range at low supply voltages. |
| Integrated EMI filter | 114 dB rejection at 1.8 GHz - suppresses cellular band interference without external ferrites or RC filters. |
| Low-charge power-up | 2 ms enable time with minimal output glitch - avoids transient injection into sensitive analog signal chains during wake-up. |
| Dual independent amplifiers | Channel-to-channel crosstalk < –120 dB at 100 kHz - supports simultaneous differential and reference channel processing. |
Applications
| Gas Detection Sensor Interface | Portable Medical Thermistor Amplifier |
|---|---|
|
Use Scenario: Amplifying low-level current from electrochemical gas sensors (e.g., City Technology 40XV oxygen cell) in handheld air quality monitors. IC Role / Device Role / Timing Role: Dual op amp configures transimpedance amplifier (TIA) for sensor current-to-voltage conversion and buffer for reference voltage. Use Value: 2 µA supply current per amplifier extends battery life to >5 years in 1-minute sampling interval systems; 5 µV offset ensures ±0.1% full-scale accuracy. |
Use Scenario: Conditioning resistance changes from NTC thermistors in wearable fever monitors with coin-cell power. IC Role / Device Role / Timing Role: Precision noninverting amplifier with programmable gain and ratiometric reference buffering. Use Value: 0.02 µV/°C drift limits temperature error to <0.01°C over 0–50°C range; rail-to-rail output drives 12-bit SAR ADC directly. |
| Energy-Harvesting Node Front-End | Low-Power Current Sensing in Smart Meters |
|
Use Scenario: Signal conditioning for piezoelectric or solar-harvested micro-power sources feeding ultra-low-quiescent PMICs. IC Role / Device Role / Timing Role: Dual amplifier implements high-impedance voltage follower for harvested voltage monitoring and low-offset difference amplifier for source impedance estimation. Use Value: 20 pA max input bias current allows >100 MΩ sense resistors without loading; shutdown mode draws only 170 nA to preserve harvester charge. |
Use Scenario: Shunt-based current measurement in battery-powered smart electricity meters with 10-year battery life requirement. IC Role / Device Role / Timing Role: Dual op amp configures precision current-sense amplifier (gain = 100 V/V) and reference buffer for ADC. Use Value: 5 µV offset contributes <0.005% error at 50 mV shunt drop; EMI rejection prevents false tripping from switching power supply noise. |
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 |
|---|---|---|---|
| AD8628ARMZ | Single-channel, 1 µA supply current, 1 µV max offset, but no shutdown pin or EMI filter. | Requires two devices for dual function; lacks integrated RF immunity for noisy environments. | Choose when lowest possible quiescent current is critical and EMI risk is negligible. |
| MAX44260ASA+ | Dual-channel, 1.2 µA supply current, 10 µV max offset, 0.1 µV/°C drift, no EMI filter. | Higher drift limits accuracy in wide-temperature deployments; no RF rejection spec provided. | Choose when cost sensitivity outweighs EMI robustness and long-term drift requirements. |
Compared with AD8628ARMZ and MAX44260ASA+, the LTC2064IMS8#PBF uniquely combines dual-channel operation, 170 nA shutdown, and 114 dB EMI rejection - making it the only option qualified for battery-powered gas sensors operating in cellular-enabled enclosures without external shielding.
Availability
LTC2064IMS8#PBF is available at Aetrix Electronics and suitable for portable instrumentation systems, wireless mesh network nodes, and energy harvesting applications requiring stable component supply with guaranteed –40°C to 85°C operation and RoHS/WEEE compliance.
Supply support for LTC2064IMS8#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 LTC2064IMS8#PBF belongs to the LTC206x family of micropower zero-drift op amps, designed specifically for ultra-low-power, high-accuracy sensor signal conditioning in battery- and energy-harvesting–powered systems.
FAQ
What is the maximum supply voltage for the LTC2064IMS8#PBF?
The LTC2064IMS8#PBF operates with a total supply voltage (V+ to V–) up to 5.25 V, with absolute maximum rating of 5.5 V. Operation above 5.25 V violates the guaranteed specifications and may cause permanent damage. The device maintains rail-to-rail input/output performance across its full 1.7–5.25 V supply range, making it ideal for single-cell Li-ion or dual-cell alkaline systems where headroom is constrained.
Does the LTC2064IMS8#PBF require external capacitors for stability?
Yes - the LTC2064IMS8#PBF requires a minimum 100 nF ceramic bypass capacitor between V+ and V– pins, placed as close as possible to the device. This capacitor stabilizes the internal reference and suppresses supply-induced noise. For high-frequency EMI suppression, a second 1 nF capacitor in parallel is recommended. No external compensation is needed for unity-gain stable configurations, but feedback networks exceeding 100 pF capacitance may require series resistor isolation per datasheet Figure 25.
How does the shutdown feature of the LTC2064IMS8#PBF behave during power-up?
The LTC2064IMS8#PBF enters shutdown mode when SHDN is held ≤0.8 V (referred to V–). During power-up, if SHDN rises after V+ and V– are stable, the device enables within 2 ms with minimal output glitch (<10 mV). If SHDN is tied high before supplies ramp, the amplifier powers up normally. Floating SHDN is not recommended - it must be actively driven to avoid undefined behavior and increased leakage current.
Can the LTC2064IMS8#PBF drive capacitive loads directly?
The LTC2064IMS8#PBF is stable driving up to 100 pF capacitive load in unity-gain configuration. Driving larger loads (e.g., ADC input capacitance >100 pF) requires isolation with a 10–100 Ω series resistor placed between the output and the load. This preserves phase margin and prevents overshoot or oscillation. The device's closed-loop output impedance drops to <1 Ω below 10 Hz, supporting fast settling into moderate capacitive loads when properly buffered.
Is the LTC2064IMS8#PBF pin-compatible with other devices in the LTC206x family?
No - the LTC2064IMS8#PBF is not pin-compatible with LTC2063 (SC70/TSOT-23) or LTC2065 (TSSOP/QFN). Within the dual-channel variants, only the LTC2064IDD#PBF (10-lead DFN) shares identical functional pinout but differs in package size, thermal pad connection, and pin 1 marking. MS8 and DFN packages require separate PCB layouts; no mechanical or electrical drop-in replacement exists between them.
LTC2064IMS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- 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 ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC2064IMS8#PBF FAQ
1.How can I place an order for LTC2064IMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2064IMS8#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 LTC2064IMS8#PBF reliable?
The price and inventory of LTC2064IMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2064IMS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC2064IMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2064IMS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2064IMS8#PBF?
LTC2064IMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2064IMS8#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 LTC2064IMS8#PBF?
For technical support, including LTC2064IMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2064IMS8#PBF requirements.
6.How does Aetrix verify that LTC2064IMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2064IMS8#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 LTC2064IMS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC2064IMS8#PBF?
All LTC2064IMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2064IMS8#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 LTC2064IMS8#PBF part is unused and in its original packaging.
Return procedure for LTC2064IMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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