My Inquiry
My Account
Analog Devices Inc. LTC6101ACMS8#PBF
- Part No.:
- LTC6101ACMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6101ACMS8#PBF.pdf
- Description:
- IC CURRENT SENSE 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:163
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC6101ACMS8#PBF from Analog Devices is a high-voltage, high-side current sense amplifier in 8-lead MSOP package, delivering 300 µV max input offset voltage, 1 µs response time, and operation from 4 V to 60 V supply. It converts shunt voltage into ground-referenced output current for precision monitoring in automotive battery management and industrial power supplies.
For engineers reviewing the LTC6101ACMS8#PBF datasheet, LTC6101ACMS8#PBF pinout, LTC6101ACMS8#PBF application, or LTC6101ACMS8#PBF equivalent, key selection criteria include input offset drift (±1 µV/°C), PSRR (118 dB min), gain configurability via external RIN/ROUT, low 250 µA supply current at 12 V, and specified 0°C to 70°C temperature range.
Technical Context
The LTC6101ACMS8#PBF uses a high-impedance feedback loop to force –IN to match +IN potential, enabling precise current-to-voltage conversion via external RIN and ROUT. Its transconductance architecture delivers IOUT = VSENSE/RIN, with output voltage VOUT = IOUT × ROUT.
It supports unidirectional sensing with 500 mV full-scale input sense voltage, 118 dB PSRR over 6–60 V supply, and operates with ±10 mA input current tolerance. The device maintains 1 µs step response (0 V to 2.5 V on 5 V output step) and 140 kHz signal bandwidth at 200 µA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4 V to 60 V - enables direct integration into 12 V, 24 V, and 48 V industrial and automotive power rails without level-shifting. |
| Input Offset Voltage | ±300 µV max - ensures ≤6 mV error at 500 mV full-scale sense voltage, supporting accurate low-current detection down to ~6 mA with 100 mΩ shunt. |
| Response Time | 1 µs - allows real-time load current warning and fast overcurrent shutdown in motor drives and DC-DC converters. |
| PSRR | 118 dB min - rejects supply noise effectively, critical for stable output under noisy high-voltage bus conditions. |
| Supply Current | 250 µA at 12 V - minimizes self-heating and system power overhead in always-on battery monitoring circuits. |
| Operating Temp | 0°C to 70°C (specified) - validated for commercial-grade embedded systems including telecom power modules and server VRMs. |
| Input Bias Current | 170 nA max - reduces error contribution from shunt resistor parasitics and PCB trace resistance in Kelvin-sense layouts. |
Pinout & Package
Package: 8-Lead Plastic MSOP (3 mm × 3 mm, 1.1 mm height), lead-free finish, 0.65 mm pitch, thermal pad optional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Current Output | Sources IOUT = VSENSE/RIN; requires external ROUT to ground to generate VOUT = IOUT × ROUT. |
| 2 (V–) | Negative Supply / Ground Reference | Return path for output current and internal circuitry; tied to system ground in single-supply configurations. |
| 3 (–IN) | Inverting Input Node | Driven to same potential as +IN by internal amplifier; connected to high-side of shunt via RIN to set transconductance. |
| 4 (NC) | No Connect | Not internally bonded; must remain floating per datasheet - no routing or soldering allowed. |
| 5 (+IN) | Non-inverting Input | Connected directly to load-side terminal of sense resistor; establishes reference point for differential sense voltage. |
| 6 (V+) | Positive Supply | Supplies operating current; connects to high-side rail (e.g., battery+, 48 V bus); current drawn here excludes monitored load current unless configured otherwise. |
| 7 (NC) | No Connect | Not internally bonded; must remain floating - no electrical or thermal connection permitted. |
| 8 (NC) | No Connect | Not internally bonded; electrically isolated and thermally inactive - leave unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| High-Side Sensing Architecture | Enables current measurement on positive rail without ground disruption - essential for battery disconnect, hot-swap, and isolated supply monitoring. |
| Configurable Gain via Resistors | RIN and ROUT independently set transconductance and output scaling - eliminates need for fixed-gain ICs across diverse current ranges. |
| Low Offset Drift | ±1 µV/°C max - maintains accuracy over temperature without calibration, critical for long-term reliability in unattended equipment. |
| High Common-Mode Rejection | 118 dB PSRR - suppresses supply ripple and switching noise that would otherwise corrupt low-level sense signals. |
| Fast Transient Response | 1 µs rise time - captures short-circuit events before damage occurs, enabling robust protection in motor controllers and e-fuse designs. |
Applications
| Battery Management System | Industrial Power Supply Monitoring |
|---|---|
Use Scenario: Real-time monitoring of charge/discharge current in 12 V–48 V lead-acid or Li-ion battery packs for UPS and telecom backup systems. IC Role / Device Role / Timing Role: High-side current sense amplifier converting shunt voltage to ground-referenced analog output for ADC sampling. Use Value: Enables accurate state-of-charge estimation and overcurrent cutoff with <6 mV total offset error at full scale, preserving battery life and safety. | Use Scenario: Continuous load current supervision in programmable DC power supplies and server VRMs operating at 12 V or 48 V input. IC Role / Device Role / Timing Role: Precision current transducer feeding analog feedback loop and digital health monitoring subsystem. Use Value: Delivers 1 µs response to detect transient overloads before regulation loop reacts, improving system fault resilience. |
| Automotive Body Control Module | Motor Drive Current Protection |
Use Scenario: Monitoring current to lighting loads, HVAC blowers, and window lift motors in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: High-voltage sense front-end interfacing with microcontroller ADC or comparator for load diagnostics. Use Value: Operates reliably across 4 V–60 V supply range, surviving cold-crank (4 V) and load-dump (60 V) transients without latch-up or damage. | Use Scenario: Detecting phase current in BLDC or stepper motor drivers to trigger immediate shutdown during stall or short-circuit events. IC Role / Device Role / Timing Role: Fast-response current sensor feeding hardware comparator for sub-microsecond fault response. Use Value: 1 µs step response ensures detection within first PWM cycle, preventing MOSFET destruction during hard shorts. |
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 (10, 20, 50); 100 µV max offset; 2.7–76 V supply; SO-8 package | Requires no external RIN/ROUT but lacks gain flexibility; lower offset improves ultra-low-current resolution | Select when fixed gain suffices and <100 µV offset is mandatory for sub-10 mA sensing |
| INA240A1D | Bi-directional sensing; 20 µV max offset; 2.7–80 V supply; 8-pin SOIC; integrated ESD protection | Supports reverse-current detection (e.g., regenerative braking); higher accuracy but no current-output architecture | Select when bidirectional capability or <20 µV offset is required, and voltage-output interface is acceptable |
Compared with MAX4080TASA+ and INA240A1D, the LTC6101ACMS8#PBF offers unique current-output architecture for noise-immune transmission over PCB traces, configurable gain for optimal dynamic range, and proven performance in high-CMRR industrial environments - making it preferred where layout constraints or system-level noise demand current-mode signaling.
Availability
LTC6101ACMS8#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-lifecycle support, and guaranteed commercial-temperature-grade performance.
Supply support for LTC6101ACMS8#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 product line was designed for precision high-side current sensing in harsh, high-voltage environments - targeting applications where accuracy, speed, and supply range exceed standard op-amp or dedicated current-sense IC capabilities.
FAQ
What is the maximum supply voltage rating for the LTC6101ACMS8#PBF?
The LTC6101ACMS8#PBF has an absolute maximum total supply voltage (V+ to V–) of 70 V. Its operational supply range is specified from 4 V to 60 V. Exceeding 70 V risks permanent damage, and operation above 60 V voids parametric guarantees. This rating distinguishes it from the LTC6101HV variant, which supports up to 105 V absolute maximum.
How does the LTC6101ACMS8#PBF achieve high-side current sensing without a level-shifter?
The LTC6101ACMS8#PBF achieves high-side sensing using an internal high-impedance feedback loop that forces the –IN pin to track the +IN pin potential. With RIN connected between V+ and –IN, the resulting current IOUT = VSENSE/RIN flows out of the OUT pin - eliminating the need for external level-shifting circuitry while maintaining ground-referenced output voltage via ROUT.
What is the meaning of "A grade" in LTC6101ACMS8#PBF?
The "A" in LTC6101ACMS8#PBF denotes the input offset voltage grade: ±300 µV maximum at 25°C and full temperature range. The "C" suffix indicates the 0°C to 70°C specified operating temperature range. Together, "AC" identifies this specific variant's accuracy and thermal specification tier within the LTC6101 family.
Can the LTC6101ACMS8#PBF be used with a 3.3 V microcontroller ADC?
Yes - the LTC6101ACMS8#PBF can drive a 3.3 V ADC by selecting ROUT such that VOUT = IOUT × ROUT stays within 0–3.3 V. For example, with VSENSE = 500 mV and RIN = 100 Ω, IOUT = 5 mA; choosing ROUT = 660 Ω yields VOUT = 3.3 V full scale. Ensure ROUT loading and ADC input impedance do not degrade linearity.
Does the LTC6101ACMS8#PBF require Kelvin connections for accurate measurement?
Yes - Kelvin (4-wire) connection of the +IN and –IN pins to opposite ends of the sense resistor is strongly recommended. Trace resistance in standard 2-wire layouts introduces errors proportional to load current; for example, 2 A through 0.5 mΩ PCB trace causes 1 mV error - a 1% error at 100 mV full scale. The LTC6101ACMS8#PBF's low offset makes such parasitic errors dominant without Kelvin routing.
LTC6101ACMS8#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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC6101ACMS8#PBF FAQ
1.How can I place an order for LTC6101ACMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6101ACMS8#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 LTC6101ACMS8#PBF reliable?
The price and inventory of LTC6101ACMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6101ACMS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC6101ACMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6101ACMS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6101ACMS8#PBF?
LTC6101ACMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6101ACMS8#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 LTC6101ACMS8#PBF?
For technical support, including LTC6101ACMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6101ACMS8#PBF requirements.
6.How does Aetrix verify that LTC6101ACMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6101ACMS8#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 LTC6101ACMS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC6101ACMS8#PBF?
All LTC6101ACMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6101ACMS8#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 LTC6101ACMS8#PBF part is unused and in its original packaging.
Return procedure for LTC6101ACMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC6101ACMS8#PBF Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
