Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Current Regulation/Management

Analog Devices Inc./Maxim Integrated MAX4007EUT

Name: MAX4007EUT
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX4007EUT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MAX4007EUT

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Current Regulation/Management

Package:: SOT-23-6

Datasheet:: MAX4007EUT.pdf

Description:: IC CURRENT MONITOR 5% SOT23-6

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,935

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MAX4007EUT from Maxim Integrated is a precision high-side current monitor IC designed for photodiode current sensing in fiber-optic APD/PIN receiver front-ends. It delivers 1/10× proportional output current (I_OUT = 0.1 × I_REF), operates from +2.7V to +76V supply, and achieves ±5% gain accuracy over 250nA–2.5mA reference current at –40°C to +85°C.

For engineers reviewing the MAX4007EUT datasheet, MAX4007EUT pinout, MAX4007EUT application, or MAX4007EUT equivalent, key selection criteria include high-voltage high-side monitoring capability, sub-µA-level reference current support, integrated clamp protection, thermal shutdown at +150°C, and SOT23-6 space-constrained packaging for optical transceiver modules.

Technical Context

The MAX4007EUT implements a BiCMOS-based high-side current mirror architecture with factory-trimmed gain (0.992–1.05 typ at 2.5mA). Its REF terminal sources photodiode cathode current while BIAS supplies the anode voltage; CLAMP enables diode-based output voltage limiting to V_CLAMP + 0.6V.

It features internal 20mA current limiting on REF, 5MΩ typical output resistance, <1pA output leakage, and 0.09–0.11mA/mA gain error across temperature and bias voltage. Startup settling time is 90µs (2.5mA) and 7.5ms (250nA) into 10nF load.

Key Specifications

Parameter	Value and Actual Design Meaning
Bias Voltage Range	+2.7V to +76V - supports APD biasing up to 76V without external level-shifting
Reference Current Range	250nA to 2.5mA (±5% accuracy) - enables precise low-light and high-light photodiode monitoring
Current Gain (I_OUT/I_REF)	0.998 (typ) - fixed 10:1 attenuation ratio with <0.2% deviation at 2.5mA
Output Noise (0.1Hz–10kHz)	1240pA_RMS at 2.5mA - low-noise performance critical for DC-coupled optical receivers
Thermal Shutdown Threshold	+150°C (with 5°C hysteresis) - protects against sustained overload or ambient overheating
Supply Current (I_BIAS)	3.6mA (typ) at 2.5mA I_REF - low quiescent power for battery-powered instrumentation
Package	SOT23-6 (U6S-3) - 2.9mm × 1.6mm footprint ideal for compact optical module PCBs

Pinout & Package

MAX4007EUT is housed in a 6-pin SOT23-6 package (top mark ABNM, pkg code U6S-3) with exposed pad not electrically connected. Pin 5 is No Connection (N.C.) and must remain unconnected.

Pin/Terminal	Circuit Role	Design Meaning
1 - CLAMP	Clamp voltage input	Defines upper limit of OUT voltage: V_OUT ≤ V_CLAMP + 0.6V; connects to ADC supply or BIAS for overvoltage protection
2 - GND	Ground reference	System ground return for internal circuitry; not photodiode cathode return
3 - OUT	Current-monitor output	Sources 0.1 × I_REF; high-impedance (5MΩ) output compatible with transimpedance amplifiers or grounded load resistors
4 - REF	Reference current output	Sources photodiode cathode current; includes 20mA internal short-circuit current limit
5 - N.C.	No connection	Not internally bonded; must be left floating or tied to GND only if required by board layout (no electrical function)
6 - BIAS	Bias voltage input	Supplies high-voltage anode potential to photodiode; supports up to +76V relative to GND

Key Features

Feature	Design Value
High-voltage high-side monitoring	Operates with photodiode anode at up to +76V while output referenced to system GND
Wide dynamic range	6-decade range (10nA–10mA) with calibrated 250nA–2.5mA band for ±5% accuracy
Integrated output clamping	CLAMP pin enables safe interfacing with 3.3V/5V ADCs without external diodes or Zeners
Thermal fault protection	Auto-shutdown at +150°C junction temperature with 5°C hysteresis prevents latch-up or damage
Low output leakage	<1pA output leakage ensures minimal error in ultra-low-current photodiode applications

Applications

Fiber-Optic Receiver Front-End	APD Bias Monitoring System
Use Scenario: Real-time monitoring of avalanche photodiode (APD) cathode current in 10G/25G optical receivers under varying light conditions. IC Role / Device Role / Timing Role: High-side current monitor sourcing photodiode cathode current and delivering scaled output current to downstream TIA or ADC. Use Value: Enables closed-loop APD bias control with <±5% gain error across temperature, ensuring stable responsivity and SNR in telecom modules.	Use Scenario: Verifying correct APD depletion voltage and detecting dark current drift during production test and field operation. IC Role / Device Role / Timing Role: Precision reference current source and monitor, interfaced with digital multimeter or microcontroller ADC via external load resistor. Use Value: Supports automated calibration and fault detection down to 250nA with no external gain-setting components required.
Portable Optical Power Meter	Laboratory Photodiode Characterization
Use Scenario: Battery-powered handheld instrument measuring optical power from -50dBm to +10dBm using PIN photodiodes. IC Role / Device Role / Timing Role: High-side current-to-current converter feeding low-power SAR ADC; CLAMP tied to 3.3V rail for output protection. Use Value: Eliminates need for isolated power supplies or op-amp level shifters, reducing BOM count and enabling single-supply 3.3V design.	Use Scenario: Benchtop setup characterizing photodiode linearity, noise, and spectral response across bias voltages from 5V to 70V. IC Role / Device Role / Timing Role: Stable, temperature-compensated current monitor providing traceable output for calibrated measurement systems. Use Value: Delivers <10ppm/°C gain drift and <1pA leakage-critical for metrology-grade photodiode IV curve generation.

Fiber-Optic Receiver Front-End

APD Bias Monitoring System

Use Scenario: Real-time monitoring of avalanche photodiode (APD) cathode current in 10G/25G optical receivers under varying light conditions.

IC Role / Device Role / Timing Role: High-side current monitor sourcing photodiode cathode current and delivering scaled output current to downstream TIA or ADC.

Use Value: Enables closed-loop APD bias control with <±5% gain error across temperature, ensuring stable responsivity and SNR in telecom modules.

Use Scenario: Verifying correct APD depletion voltage and detecting dark current drift during production test and field operation.

IC Role / Device Role / Timing Role: Precision reference current source and monitor, interfaced with digital multimeter or microcontroller ADC via external load resistor.

Use Value: Supports automated calibration and fault detection down to 250nA with no external gain-setting components required.

Portable Optical Power Meter

Laboratory Photodiode Characterization

Use Scenario: Battery-powered handheld instrument measuring optical power from -50dBm to +10dBm using PIN photodiodes.

IC Role / Device Role / Timing Role: High-side current-to-current converter feeding low-power SAR ADC; CLAMP tied to 3.3V rail for output protection.

Use Value: Eliminates need for isolated power supplies or op-amp level shifters, reducing BOM count and enabling single-supply 3.3V design.

Use Scenario: Benchtop setup characterizing photodiode linearity, noise, and spectral response across bias voltages from 5V to 70V.

IC Role / Device Role / Timing Role: Stable, temperature-compensated current monitor providing traceable output for calibrated measurement systems.

Use Value: Delivers <10ppm/°C gain drift and <1pA leakage-critical for metrology-grade photodiode IV curve generation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side current monitoring applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX4008EUT-T	Provides voltage output (1V/mA) via internal 10kΩ resistor; 1% typical accuracy vs. MAX4007EUT's 5%.	Direct replacement when downstream stage expects voltage input (e.g., ADC with no transimpedance stage).	Select MAX4008EUT-T if system uses voltage-input signal chain; otherwise MAX4007EUT avoids extra conversion stage.
TSM101AIDT	Wider supply range (2.5V–36V); lower voltage rating; no CLAMP pin; ±1% gain accuracy at 1mA.	Suitable for low-voltage industrial current sensing but lacks 76V capability and photodiode-specific protection features.	Choose TSM101AIDT only for ≤36V applications where cost is prioritized over optical-system robustness.

Compared with MAX4008EUT-T and TSM101AIDT, the MAX4007EUT uniquely combines 76V operation, photodiode-optimized clamping, and true high-side current output-making it irreplaceable in APD-based fiber receivers requiring >40V bias compliance and GND-referenced signal extraction.

Availability

MAX4007EUT is available at Aetrix Electronics and suitable for fiber-optic transceivers, portable optical test equipment, and laboratory photodiode characterization systems requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for MAX4007EUT 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 demanding industrial, communications, and medical applications.

The MAX4007EUT belongs to Maxim's high-voltage photodiode monitor product line, engineered specifically for fiber-optic receiver front-ends requiring accurate, protected, high-side current sensing at up to 76V.

FAQ

What is the exact current gain relationship of the MAX4007EUT?

The MAX4007EUT provides a fixed current gain of I_OUT = 0.1 × I_REF, with guaranteed accuracy of ±5% over 250nA–2.5mA reference current, –40°C to +85°C, and +2.7V to +76V bias voltage. Typical gain is 0.998×, and deviation remains within ±0.2% at 2.5mA per datasheet Table 1.

Can the MAX4007EUT be used with a negative supply?

Yes - the MAX4007EUT supports negative ground configurations: connect GND to a negative rail while maintaining |V_BIAS − V_GND| ≤ 76V. This allows full depletion of APDs in systems with split supplies. The MAX4007EUT's current-output architecture keeps OUT referenced to true system ground, unlike voltage-output alternatives.

How does the CLAMP pin protect downstream circuitry?

The CLAMP pin on the MAX4007EUT enables a Schottky diode clamp between OUT and CLAMP, limiting V_OUT to V_CLAMP + 0.6V. When CLAMP is tied to a 3.3V or 5V ADC supply rail, this prevents OUT from exceeding the ADC's absolute maximum input rating - a critical safeguard in optical receivers where transient overloads can occur.

What is the minimum startup time for the MAX4007EUT at low reference currents?

At I_REF = 250nA, the MAX4007EUT requires 7.5ms to settle within 0.1% of final output current when a 10nF capacitor is placed between REF and GND. This value is confirmed in the "Power-Up Settling Time" specification (Table 1, t_S = 7.5ms) and validated in Typical Operating Characteristic Figure toc08.

Does the MAX4007EUT require external gain-setting resistors?

No - the MAX4007EUT has no external gain-setting components. Its 0.1× current gain is achieved via factory-trimmed internal circuitry. Unlike transimpedance amplifiers, it delivers a proportional output current directly, eliminating resistor tolerance errors and thermal drift concerns associated with external feedback networks.

MAX4007EUT Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

Series:: -

Package/Case:: SOT-23-6

Packaging:: Bulk

Product Status:: Active

Function:: Current Monitor

Sensing Method:: High-Side

Accuracy:: ±5%

Voltage - Input:: 2.7V ~ 76V

Current - Output:: -

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-6

MAX4007EUT FAQ

1.How can I place an order for MAX4007EUT through Aetrix?

Please submit a Request for Quotation (RFQ) for MAX4007EUT 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 MAX4007EUT reliable?

The price and inventory of MAX4007EUT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4007EUT is usually 5 days.

3.What payment methods are accepted for MAX4007EUT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4007EUT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MAX4007EUT?

MAX4007EUT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MAX4007EUT 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 MAX4007EUT?

For technical support, including MAX4007EUT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4007EUT requirements.

6.How does Aetrix verify that MAX4007EUT is sourced from the original manufacturer or authorized distributors?

All MAX4007EUT 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 MAX4007EUT meets industry standards.

7.What is the process for return or replacement of MAX4007EUT?

All MAX4007EUT units undergo pre-shipment inspection (PSI). If there is an issue with MAX4007EUT, 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 MAX4007EUT part is unused and in its original packaging.

Return procedure for MAX4007EUT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

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…