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Analog Devices Inc. LTC6101AIMS8#PBF
- Part No.:
- LTC6101AIMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6101AIMS8#PBF.pdf
- Description:
- IC CURRENT SENSE 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:499
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Product details
Overview
LTC6101AIMS8#PBF from Analog Devices is a high-voltage, high-side current sense amplifier in 8-lead MSOP package, operating from 4V to 60V supply with ±300µV max input offset voltage, 1µs response time, and 118dB min PSRR. It converts shunt voltage into ground-referenced output current for precision load monitoring in automotive battery management and industrial power supplies.
For engineers reviewing the LTC6101AIMS8#PBF datasheet, LTC6101AIMS8#PBF pinout, LTC6101AIMS8#PBF application, or LTC6101AIMS8#PBF equivalent, key selection criteria include its 4V–60V supply range, –40°C to 85°C specified temperature grade, 500mV full-scale sense voltage, low 250µA supply current at 12V, and compatibility with external RIN/ROUT gain configuration.
Technical Context
The LTC6101AIMS8#PBF uses a high-impedance feedback loop to force –IN to match +IN potential, enabling accurate current sensing via external RIN (100Ω–10kΩ) and ROUT resistors. Its transconductance architecture delivers IOUT = VSENSE/RIN, independent of common-mode voltage up to 60V.
It features internal MOSFET output stage sourcing up to 1mA, supports Kelvin-sense resistor connections to minimize PCB trace errors, and maintains 140kHz signal bandwidth with 200µA load on RIN = 100Ω and ROUT = 5kΩ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4V to 60V - enables direct integration into 5V–48V industrial and automotive power rails without level-shifting. |
| Input Offset Voltage | ±300µV max - allows use of small-value shunt resistors (e.g., 5mΩ) while maintaining <3mA error at 2A load. |
| Response Time | 1µs (0V to 2.5V step) - supports fast overcurrent detection and real-time load transient monitoring. |
| PSRR | 118dB min - rejects supply noise even under high dV/dt conditions in switching power systems. |
| Supply Current | 250µA at 12V - minimizes self-heating and preserves efficiency in always-on battery monitoring circuits. |
| Sense Voltage Range | 0–500mV full scale - accommodates wide dynamic current ranges from mA to >10A with appropriate RSENSE. |
| Operating Temp | –40°C to 85°C - qualified for under-hood automotive and industrial control environments. |
Pinout & Package
8-lead plastic MSOP package (3mm × 3mm, 1.1mm height) with high-voltage spacing optimized for ≥60V operation. Pin 1 marked with dot; exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Current Output | Sources IOUT = VSENSE/RIN; requires external ROUT to ground to generate VOUT. |
| 2 (V–) | Negative Supply | Connect to system ground or negative rail; defines output reference and sink path for ROUT. |
| 3 (–IN) | Inverting Input | Driven to same potential as +IN; connects to high-side of shunt via Kelvin trace to reject PCB resistance error. |
| 4 (NC) | No Connect | Internally unused; must be left floating or tied to V– per layout guidelines. |
| 5 (+IN) | Non-inverting Input | Connects directly to load side of shunt; establishes common-mode reference for high-side sensing. |
| 6 (V+) | Positive Supply | Supplies device current; connect to more positive shunt terminal to exclude IC supply current from measurement. |
| 7 (NC) | No Connect | Internally unused; must be left floating or tied to V–. |
| 8 (NC) | No Connect | Internally unused; must be left floating or tied to V–. |
Key Features
| Feature | Design Value |
|---|---|
| High-Side Sensing Architecture | Enables current measurement on positive rail without ground disruption, critical for battery disconnect and hot-swap applications. |
| Configurable Gain via RIN/ROUT | Supports 20× to 100× effective gain (e.g., RIN=100Ω/ROUT=10kΩ → G=100), eliminating need for fixed-gain variants. |
| Low Input Bias Current | 170nA max ensures <0.1mV error with 1kΩ RIN, preserving accuracy in high-impedance gain networks. |
| Fast Transient Response | 1µs rise time enables cycle-by-cycle overcurrent protection in DC-DC converters and motor drives. |
| Wide Temperature Range Support | Specified from –40°C to 85°C ensures stable offset and gain performance across automotive cabin and industrial ambient conditions. |
Applications
| Battery Management System | Industrial Power Supply Monitoring |
|---|---|
Use Scenario: Real-time monitoring of 12V/24V lead-acid or Li-ion battery pack charge/discharge current in EV auxiliary systems. IC Role / Device Role / Timing Role: High-side current sense amplifier converting shunt voltage to ground-referenced analog output for MCU ADC sampling. Use Value: ±300µV offset enables 5mΩ shunt use, reducing power loss to <50mW at 10A while maintaining 1% full-scale accuracy. | Use Scenario: Load current supervision in programmable DC power supplies delivering 0–30V/0–10A. IC Role / Device Role / Timing Role: High-voltage current sensor feeding analog feedback loop for overcurrent shutdown and digital display scaling. Use Value: 1µs response time allows detection of 10A short-circuit events within 2 switching cycles of a 500kHz buck controller. |
| Automotive Body Control Module | Server PSU Current Telemetry |
Use Scenario: Fuseless load monitoring for headlights, HVAC blowers, and seat heaters in 12V/42V dual-battery architectures. IC Role / Device Role / Timing Role: High-side current amplifier interfacing with CAN/LIN transceivers via isolated ADC for fault logging. Use Value: 118dB PSRR suppresses ignition noise and alternator ripple, ensuring stable readings during engine cranking. | Use Scenario: Per-rail current telemetry in 48V intermediate bus architecture for AI accelerators and storage arrays. IC Role / Device Role / Timing Role: Precision current sense front-end for PMBus-compliant digital power controllers. Use Value: 4V–60V supply range matches server PSU input stages; 250µA quiescent current avoids derating in thermally constrained 1U chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4080TASA+ | Fixed gain (20×), SO-8 package, 2.7V–76V supply, 120µV max offset, no NC pins. | Requires no external RIN/ROUT; less flexible gain but simpler BOM. | Select when fixed gain suffices and board space permits SO-8; avoid if variable gain or MSOP footprint required. |
| INA240A1D | Bi-directional sensing, SO-8, 2.7V–80V supply, 100µV max offset, integrated ESD protection. | Supports reverse-current detection (e.g., regenerative braking); higher cost and larger package. | Select for bi-directional applications or where enhanced EMC robustness is mandatory; not drop-in for unidirectional use. |
Compared with MAX4080TASA+ and INA240A1D, the LTC6101AIMS8#PBF offers user-configurable gain via external resistors, superior PSRR (118dB vs. 105dB), and smaller MSOP-8 footprint-making it optimal for space-constrained, high-noise industrial designs requiring precise unidirectional current measurement.
Availability
LTC6101AIMS8#PBF is available at Aetrix Electronics and suitable for battery management, industrial power supply monitoring, and automotive body control applications requiring stable component supply, long-term lifecycle support, and guaranteed –40°C to 85°C operation.
Supply support for LTC6101AIMS8#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC6101 family was designed specifically for high-accuracy, high-voltage, high-side current sensing in power management systems where low offset, fast response, and supply rejection are critical-targeting applications from battery-powered equipment to 48V datacenter infrastructure.
FAQ
What is the maximum supply voltage rating for the LTC6101AIMS8#PBF?
The LTC6101AIMS8#PBF has an absolute maximum total supply voltage (V+ to V–) of 70V. Its operational supply range is 4V to 60V, making it suitable for 48V industrial buses and automotive 12V/24V systems with transient margin. Exceeding 70V risks permanent damage per Absolute Maximum Ratings.
Can the LTC6101AIMS8#PBF measure bidirectional current?
No, the LTC6101AIMS8#PBF is a unidirectional high-side current sense amplifier. It measures current flowing from V+ toward the load only. For bidirectional sensing (e.g., regenerative braking), consider alternatives like the INA240A1D or LTC6102, which support both polarities.
How does the LTC6101AIMS8#PBF achieve high common-mode rejection?
The LTC6101AIMS8#PBF achieves 118dB minimum PSRR through a proprietary high-voltage input stage and matched internal transistor pairs that reject supply variations. This is verified across 4V–60V supply range and enables accurate sensing in noisy switch-mode power environments without additional filtering.
What is the purpose of the NC pins on the LTC6101AIMS8#PBF MSOP package?
Pins 4, 7, and 8 on the LTC6101AIMS8#PBF are No Connect (NC) terminals. They are internally unused and must be left floating or tied to V– per Analog Devices' layout recommendations to prevent parasitic coupling or ESD susceptibility in high-voltage layouts.
Does the LTC6101AIMS8#PBF require external components to function?
Yes, the LTC6101AIMS8#PBF requires two external resistors: RIN (between V+ and –IN) sets transconductance (IOUT = VSENSE/RIN), and ROUT (between OUT and V–) converts output current to voltage (VOUT = IOUT × ROUT). No capacitors or active components are mandatory for basic operation.
LTC6101AIMS8#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:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- -
- Gain Bandwidth Product:
- 200 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 nA
- Voltage - Input Offset:
- 85 µV
- Current - Supply:
- 375µA
- Current - Output / Channel:
- 1 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 60 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC6101AIMS8#PBF FAQ
1.How can I place an order for LTC6101AIMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6101AIMS8#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 LTC6101AIMS8#PBF reliable?
The price and inventory of LTC6101AIMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6101AIMS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC6101AIMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6101AIMS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6101AIMS8#PBF?
LTC6101AIMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6101AIMS8#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 LTC6101AIMS8#PBF?
For technical support, including LTC6101AIMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6101AIMS8#PBF requirements.
6.How does Aetrix verify that LTC6101AIMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6101AIMS8#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 LTC6101AIMS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC6101AIMS8#PBF?
All LTC6101AIMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6101AIMS8#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 LTC6101AIMS8#PBF part is unused and in its original packaging.
Return procedure for LTC6101AIMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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