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Analog Devices Inc. LT1101AIN8#PBF
- Part No.:
- LT1101AIN8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1101AIN8#PBF.pdf
- Description:
- IC INST AMP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:600
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Product details
Overview
LT1101AIN8#PBF from Analog Devices (formerly Linear Technology) is a micropower, single-supply instrumentation amplifier with fixed gains of 10 or 100 in an 8-lead PDIP package. It delivers 0.04% max gain error, 0.0008% (8 ppm) max gain nonlinearity, and 4 ppm/°C max gain drift, enabling high-accuracy bridge transducer amplification in battery-powered industrial sensors.
For engineers reviewing the LT1101AIN8#PBF datasheet, LT1101AIN8#PBF pinout, LT1101AIN8#PBF application, or LT1101AIN8#PBF equivalent, key selection criteria include guaranteed operation down to 1.8V supply, rail-to-rail output swing within millivolts of ground, and no external gain-setting resistor required for either gain configuration.
Technical Context
The LT1101AIN8#PBF implements a three-op-amp topology with PNP input stages, enabling ±36V differential input tolerance and robust input protection without diode clamps. Its internal 9.2kΩ resistor network sets fixed gains-G = 100 requires no external connections, while G = 10 is configured by shorting Pin 2 to Pin 1 and Pin 7 to Pin 8.
It operates from single 1.8V–15V or dual ±2.0V–±15V supplies, with CMRR ≥100 dB at G = 100 and PSRR ≥102 dB. The reference pin (Pin 1) allows ground-referenced or level-shifted output, and output sinking capability eliminates need for pull-down resistors in single-supply systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Options | Fixed G = 10 or G = 100; selected via pin strapping-no external resistor needed. |
| Supply Voltage Range | 1.8V to 15V single supply or ±2.0V to ±15V dual supply-enables lithium cell or Ni-Cad battery operation. |
| Gain Error | 0.04% max at G = 100, RL = 50kΩ-ensures <±4mV error in 10V full-scale output. |
| Input Offset Voltage | 160µV max-contributes <±1.6mV error at G = 10, critical for low-level thermocouple signals. |
| Supply Current | 105µA max-supports multi-year battery life in remote sensor nodes. |
| CMRR | 100dB min at G = 100-rejects >100,000:1 common-mode interference in noisy industrial environments. |
| Output Swing | Within 1mV of ground (low) and within 600mV of V+ (high) at 2kΩ load-maximizes dynamic range in 5V systems. |
Pinout & Package
LT1101AIN8#PBF is housed in an 8-lead plastic DIP (N8) package with 0.300-inch width, JEDEC MS-001 compliant, rated for –40°C to +85°C operating temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (REF) | Reference Input | Sets output common-mode voltage; tied to ground for single-supply zero-referenced output. |
| Pin 2 (–IN) | Inverting Input | Differential input node; accepts signals down to 0V in single-supply mode. |
| Pin 3 (OUT) | Output | Amplified output capable of sinking current to ground-no pull-down resistor required. |
| Pin 4 (V–) | Negative Supply | Connected to 0V in single-supply operation; supports negative rail down to –22V. |
| Pin 5 (NC) | No Connect | Internally unused; must be left floating or grounded per layout guidelines. |
| Pin 6 (V+) | Positive Supply | Accepts 1.8V–15V; enables ultra-low-voltage operation with minimal performance degradation. |
| Pin 7 (+IN) | Noninverting Input | Differential input node; common-mode range extends to within millivolts of V–. |
| Pin 8 (NC) | No Connect | Internally unused; must be left floating or grounded per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 75µA typical supply current-enables decade-long battery life in wireless sensor nodes. |
| Single-Supply Compatibility | Inputs and output swing to within 1mV of ground-eliminates need for split supplies in portable instrumentation. |
| Fixed-Gain Architecture | G = 10 or G = 100 set by pin strapping-removes gain-setting resistor tolerance and PCB area. |
| Robust Input Protection | PNP input stage withstands ±36V differential input-survives transient overloads without bias current shift. |
| Low 1/f Noise | 0.9µVp-p (0.1–10 Hz)-preserves signal integrity in DC-coupled thermistor and strain gauge measurements. |
Applications
| Thermocouple Signal Conditioning | Strain Gauge Bridge Amplifier |
|---|---|
Use Scenario: Amplifying µV-level thermocouple outputs in HVAC controllers with 5V single supply. IC Role / Device Role / Timing Role: Precision differential amplifier with G = 100, rejecting furnace EMI and line noise. Use Value: 0.04% gain error and 100dB CMRR ensure ±0.5°C measurement accuracy without calibration. | Use Scenario: Reading 350Ω Wheatstone bridge outputs in structural health monitoring sensors. IC Role / Device Role / Timing Role: Micropower instrumentation amplifier with G = 10, operating from coin-cell battery. Use Value: 105µA supply current and 1.8V minimum supply enable >5-year field deployment. |
| 4–20mA Loop Receiver | Remote Temperature Sensor Node |
Use Scenario: Converting loop current to voltage in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Differential voltage-to-current converter front-end with rail-to-ground output. Use Value: Output sinking capability eliminates external pull-down, reducing BOM count and board space. | Use Scenario: Battery-powered outdoor temperature node using LM134 current source and LT1004 reference. IC Role / Device Role / Timing Role: Single-supply instrumentation amplifier with G = 10, referenced to local ground. Use Value: Guaranteed 1.8V operation and 0.4µV/°C offset drift maintain ±0.5°C accuracy across –40°C to +85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar instrumentation amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD620ARZ | Pin-compatible 8-lead SOIC; adjustable gain via external resistor; 120µA supply current; 50µV max VOS. | Requires external gain resistor; not specified for 1.8V operation; higher power consumption. | Select when adjustable gain (1–1000) and lower offset are prioritized over micropower and ultra-low-voltage operation. |
| INA126PA | 8-lead PDIP; fixed G = 10 or 100; 170µA supply current; 250µV max VOS; minimum supply 2.7V. | Higher supply current and minimum voltage; wider offset spec; same pinout but different internal strapping. | Select when TI's enhanced ESD rating and automotive qualification are required, accepting reduced battery life. |
Compared with AD620ARZ and INA126PA, the LT1101AIN8#PBF uniquely supports 1.8V operation and sub-100µA supply current while maintaining 0.04% gain accuracy-making it the only choice for long-life, ultra-low-voltage sensor front-ends.
Availability
LT1101AIN8#PBF is available at Aetrix Electronics and suitable for industrial sensor conditioning, battery-powered instrumentation, and 4–20mA loop receiver designs requiring stable component supply and long-term obsolescence management.
Supply support for LT1101AIN8#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 and maintains its precision analog portfolio, renowned for high-performance op amps, instrumentation amplifiers, and data converters.
The LT1101 series was designed specifically for micropower, single-supply sensor signal conditioning-targeting battery-operated industrial, medical, and environmental monitoring systems where supply voltage headroom and quiescent current are critical constraints.
FAQ
What is the minimum supply voltage for LT1101AIN8#PBF, and is it guaranteed across temperature?
The LT1101AIN8#PBF is guaranteed to operate down to 1.8V supply voltage across its full –40°C to +85°C temperature range. This specification is verified by power supply rejection testing and confirmed in the Electrical Characteristics table under "Minimum Supply Voltage" with test conditions at TA = –40°C and +85°C. Performance degradation at 1.8V is minimal, preserving gain accuracy and CMRR.
How do I configure LT1101AIN8#PBF for G = 10 versus G = 100?
To configure LT1101AIN8#PBF for G = 100, leave Pins 1, 2, 7, and 8 unconnected-no external wiring is needed. For G = 10, short Pin 2 to Pin 1 and Pin 7 to Pin 8 using zero-ohm jumpers or PCB traces. This pin-strapping method is defined in the "PACKAGE/ORDER INFORMATION" section and validated across all N8-package units.
Does LT1101AIN8#PBF require external offset nulling components?
No, the LT1101AIN8#PBF does not have dedicated offset null pins and is not intended for external trimming. Its 160µV max input offset voltage and 0.4µV/°C drift are sufficiently low for most bridge and thermocouple applications. In cases requiring tighter offset control, system-level calibration (e.g., bridge nulling) or an auxiliary micropower op amp like LT1077 driving Pin 1 is recommended-not on-chip nulling.
What is the output drive capability of LT1101AIN8#PBF into a 2kΩ load?
The LT1101AIN8#PBF guarantees ±10V output swing into a 2kΩ load with excellent gain accuracy. Specifically, the output high is ≥3.5V (at V+ = 5V), and output low is ≤1mV (at V– = 0V), confirming rail-to-ground sinking capability. This allows direct interfacing with ADCs and microcontrollers without level-shifting circuitry.
Is LT1101AIN8#PBF RoHS-compliant and lead-free?
Yes, LT1101AIN8#PBF is RoHS-compliant and features a lead-free finish (#PBF suffix denotes Pb-free). The device meets JEDEC J-STD-020 moisture sensitivity level (MSL) 1 and is qualified for reflow soldering per IPC/JEDEC J-STD-020. Full compliance documentation is available in Analog Devices' product change notices and material declarations.
LT1101AIN8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Instrumentation
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.1V/µs
- Gain Bandwidth Product:
- 37 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 6 nA
- Voltage - Input Offset:
- 50 µV
- Current - Supply:
- 92µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LT1101AIN8#PBF FAQ
1.How can I place an order for LT1101AIN8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1101AIN8#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 LT1101AIN8#PBF reliable?
The price and inventory of LT1101AIN8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1101AIN8#PBF is usually 5 days.
3.What payment methods are accepted for LT1101AIN8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1101AIN8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1101AIN8#PBF?
LT1101AIN8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1101AIN8#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 LT1101AIN8#PBF?
For technical support, including LT1101AIN8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1101AIN8#PBF requirements.
6.How does Aetrix verify that LT1101AIN8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1101AIN8#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 LT1101AIN8#PBF meets industry standards.
7.What is the process for return or replacement of LT1101AIN8#PBF?
All LT1101AIN8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1101AIN8#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 LT1101AIN8#PBF part is unused and in its original packaging.
Return procedure for LT1101AIN8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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