My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4073HAXK-T
- Part No.:
- MAX4073HAXK-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX4073HAXK-T.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,457
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4073HAXK-T from Maxim Integrated is a high-side current-sense amplifier with voltage output, designed for precision battery-charger control loops and portable power monitoring. It delivers 100V/V fixed gain, ±1.0% full-scale accuracy at +25°C, 1.6MHz bandwidth, and operates from +3V to +28V supply across -40°C to +125°C. Its +2V to +28V input common-mode range-fully independent of VCC-enables direct sensing at battery terminals in smart chargers and PDAs.
For engineers reviewing the MAX4073HAXK-T datasheet, MAX4073HAXK-T pinout, MAX4073HAXK-T application, or MAX4073HAXK-T equivalent, this page provides verified pin mapping, automotive-grade thermal performance, SC70 package footprint details, and real-world current-sense design constraints including RSENSE selection guidance and output loading error calculation.
Technical Context
The MAX4073HAXK-T uses a bipolar process-based current-mirror architecture to convert differential sense voltage (VRS+ − VRS−) into a proportional voltage output without external gain-setting resistors. Its input stage maintains high impedance at RS+ and RS−, enabling accurate high-side sensing without ground-path disruption.
It features internal gain-setting (100V/V), 12kΩ output resistance, and rail-to-rail output swing limited by VOH = VCC − 0.8V (min) at TA = +25°C. Power-supply rejection ratio exceeds 70dB up to 10kHz, and saturation recovery time is 5µs-critical for fast transient response in switching regulator feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 100V/V - sets full-scale output to 10V for 100mV sense voltage; eliminates need for external gain resistors |
| Full-Scale Sense Voltage | 150mV - maximum differential input before output saturation; defines minimum RSENSE for target load current |
| Common-Mode Input Range | +2V to +28V - supports sensing from low-voltage batteries (≥2V) up to industrial rails, independent of VCC |
| Bandwidth | 1.6MHz - enables stable operation inside battery-charger control loops with >100kHz switching frequencies |
| Supply Current | 0.5mA typical at VCC = 28V - enables always-on current monitoring in ultra-low-power portable systems |
| Accuracy | ±1.0% total output error at +25°C, ±7.0% over full temperature range - ensures reliable charge termination and safety cutoff |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive and industrial embedded applications |
Pinout & Package
MAX4073HAXK-T is housed in a RoHS-compliant 5-pin SC70 package (outline 21-0076), measuring 2.0mm × 1.25mm × 0.95mm-half the footprint of SOT23. This compact size supports high-density PCB layouts in space-constrained handheld devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Low-impedance return path for internal biasing; must be connected directly to system ground plane |
| VCC | Positive supply input | Accepts +3V to +28V; requires 0.1µF ceramic bypass capacitor placed within 2mm of pin |
| RS+ | High-side sense input (+) | Connects to power source side of external sense resistor; withstands up to +30V absolute max |
| RS− | High-side sense input (−) | Connects to load/battery side of sense resistor; differential input range limited to ±5V |
| OUT | Voltage output | Delivers VOUT = 100 × (VRS+ − VRS−); 12kΩ output impedance requires high-Z ADC or op-amp buffer |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 100V/V gain | Eliminates external gain resistors, reducing BOM count and layout sensitivity to parasitic capacitance |
| +2V to +28V common-mode range | Enables direct battery terminal sensing down to 2V, avoiding ground-loop interference in charger ICs |
| 1.6MHz bandwidth | Supports closed-loop stability in DC-DC converters operating up to 200kHz with phase margin ≥45° |
| ±1.0% full-scale accuracy | Ensures <10mV absolute error at 100mV sense voltage-critical for precise battery SOC estimation |
| Automotive temperature range | Validated operation from -40°C to +125°C without derating-suitable for engine-control and infotainment modules |
Applications
| Smart Battery Chargers | Portable System Power Monitoring |
|---|---|
Use Scenario: Real-time current measurement during CC/CV charging of Li-ion packs in smartphones and tablets. IC Role / Device Role / Timing Role: High-side current-sense amplifier providing isolated analog feedback to charger controller's error amplifier. Use Value: Enables accurate charge termination at ±1% full-scale error, preventing overcharge and extending cycle life. |
Use Scenario: Board-level current profiling in notebook computers during sleep/wake transitions and GPU load spikes. IC Role / Device Role / Timing Role: Voltage-output current monitor feeding ADC input of system power manager IC. Use Value: Delivers 1.6MHz bandwidth to capture fast load transients without aliasing, supporting dynamic power budgeting. |
| PA Bias Control | Precision Current Sources |
Use Scenario: Closed-loop bias current regulation for RF power amplifiers in cellular baseband modules. IC Role / Device Role / Timing Role: High-speed current sensor in feedback path of op-amp-controlled bias circuit. Use Value: 5µs saturation recovery and 1.6MHz bandwidth maintain linearity during rapid PA enable/disable cycles. |
Use Scenario: Programmable constant-current source for LED drivers or sensor excitation in industrial IoT nodes. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with fixed 100V/V gain driving DAC-controlled loop. Use Value: ±1.0% accuracy at +25°C and 12kΩ output impedance simplify calibration and reduce drift-induced gain error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4173HAUT+T | 6-pin SOT23 package; wider common-mode range (0V to +28V); same 100V/V gain and ±1.0% accuracy | Supports sensing down to 0V common-mode-required for ground-referenced loads or dual-supply systems | Select when zero-volt sensing capability or larger SOT23 footprint compatibility is needed; not pin-compatible with SC70 |
| INA213AIDCKR | 36V supply; 1% gain error; 500kHz bandwidth; 3-pin SOT-23; lower quiescent current (100µA) | Optimized for low-power, wide-VCC applications but lacks automotive temp rating and high-bandwidth response | Choose for battery-powered wearables where bandwidth <500kHz suffices and extended temperature range is not required |
Compared with MAX4073HAXK-T, MAX4173HAUT+T adds 0V common-mode support at the cost of larger footprint and no SC70 option, while INA213AIDCKR trades bandwidth and temperature grade for ultra-low supply current-making each suitable only for distinct subsystem requirements.
Availability
MAX4073HAXK-T is available at Aetrix Electronics and suitable for smart battery chargers, portable system power monitoring, PA bias control, precision current sources, and board-level current sensing requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MAX4073HAXK-T 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
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for power management, sensing, and interface applications in demanding environments.
The MAX4073 family targets high-side current monitoring in battery-powered and automotive systems, emphasizing small footprint, wide common-mode range, and robust thermal performance without external gain components.
FAQ
What is the exact gain and accuracy specification of the MAX4073HAXK-T?
The MAX4073HAXK-T has a fixed gain of 100V/V. Its total output voltage error is ±1.0% at TA = +25°C and ±7.0% over the full -40°C to +125°C operating range, measured at VSENSE = 100mV, VCC = 12V, and VRS+ = 12V. This accuracy includes both gain and offset contributions, as confirmed in the Electrical Characteristics table on page 2 of the official datasheet.
Does the MAX4073HAXK-T require external gain-setting resistors?
No, the MAX4073HAXK-T does not require external gain-setting resistors. Its 100V/V gain is internally fixed via laser-trimmed resistor ratios and current-mirror topology. This eliminates gain drift due to external component tolerances and simplifies PCB layout-confirmed in the General Description and Detailed Description sections of the datasheet.
What is the maximum common-mode voltage the MAX4073HAXK-T can handle, and is it supply-dependent?
The MAX4073HAXK-T supports a +2V to +28V input common-mode range at RS+ and RS−, and this range is explicitly stated as independent of the supply voltage (VCC). Absolute maximum ratings allow RS+/RS− to tolerate up to +30V relative to GND, but functional operation is guaranteed only within the +2V to +28V range per the Electrical Characteristics table.
Can the MAX4073HAXK-T be used in automotive applications?
Yes, the MAX4073HAXK-T is specified for the automotive temperature range of -40°C to +125°C and is qualified for use in automotive subsystems such as body control modules and infotainment power supplies. Its bipolar process, 125°C junction rating, and tested reliability under thermal cycling confirm suitability for under-dash and engine-bay-adjacent placements.
What package type and pin count does the MAX4073HAXK-T use?
The MAX4073HAXK-T uses a 5-pin SC70 package (package code X5+1, outline 21-0076), with pinout: Pin 1 = GND, Pin 2 = VCC, Pin 3 = RS+, Pin 4 = RS−, Pin 5 = OUT. This matches the SC70 configuration shown in Figure 9 (Pin Configurations) and Package Information section of the datasheet.
MAX4073HAXK-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- -
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 1.6 MHz
- Current - Input Bias:
- 40 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 500µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 28 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
MAX4073HAXK-T FAQ
1.How can I place an order for MAX4073HAXK-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4073HAXK-T 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 MAX4073HAXK-T reliable?
The price and inventory of MAX4073HAXK-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4073HAXK-T is usually 5 days.
3.What payment methods are accepted for MAX4073HAXK-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4073HAXK-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4073HAXK-T?
MAX4073HAXK-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4073HAXK-T 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 MAX4073HAXK-T?
For technical support, including MAX4073HAXK-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4073HAXK-T requirements.
6.How does Aetrix verify that MAX4073HAXK-T is sourced from the original manufacturer or authorized distributors?
All MAX4073HAXK-T 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 MAX4073HAXK-T meets industry standards.
7.What is the process for return or replacement of MAX4073HAXK-T?
All MAX4073HAXK-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4073HAXK-T, 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 MAX4073HAXK-T part is unused and in its original packaging.
Return procedure for MAX4073HAXK-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4073HAXK-T 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…
