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Analog Devices Inc./Maxim Integrated MAX9610HELT+T
- Part No.:
- MAX9610HELT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-WDFN
- Datasheet:
-
MAX9610HELT+T.pdf
- Description:
- IC CURRENT SENSE 1 CIRCUIT 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:822
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Product details
Overview
MAX9610HELT+T from Maxim Integrated is a unidirectional high-side current-sense amplifier with 100V/V fixed gain, 500μV (max) input offset voltage, <0.5% (max) gain error, 1.6V–5.5V common-mode input range, and ultra-low 1μA quiescent supply current. It operates in -40°C to +85°C and targets precision battery current monitoring in Li+-powered portable devices where minimal voltage drop and long runtime are critical.
For engineers reviewing the MAX9610HELT+T datasheet, MAX9610HELT+T pinout, MAX9610HELT+T application, or MAX9610HELT+T equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated package and pin mapping, application-specific implementation insights, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The MAX9610HELT+T uses a BiCMOS-based current-mirror architecture with matched internal gain resistors (R1 = 100Ω, ROUT = 10kΩ) to deliver precise 100V/V amplification of differential sense voltage (VSENSE = VRS+ − VRS−). Its supply is derived solely from the input common-mode voltage-no separate VCC-enabling operation directly from a single-cell Li+ battery rail (1.6V–5.5V).
This architecture achieves 80dB–104dB CMRR over full temperature and common-mode range, supports 60kHz small-signal bandwidth at G=100, and settles within 35μs to 1% for 25mV step inputs. Output swing is constrained by VRS+ minimum voltage and VOH (≤0.2V), limiting full-scale VSENSE to ~30mV at 3.6V supply for optimal linearity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 100V/V - enables use of low-value sense resistors (e.g., 10mΩ) to minimize IR loss while delivering 3V output for 30mA load current. |
| Input Offset Voltage (VOS) | ±700μV (max, −40°C to +85°C) - contributes ≤70mV error at full-scale 30mV VSENSE, limiting absolute current measurement accuracy. |
| Gain Error | ±1% (max, −40°C to +85°C) - introduces ±0.3mV error on 30mV VSENSE, dominant over VOS at higher sense voltages. |
| Common-Mode Input Range | 1.6V to 5.5V - matches single-cell Li+ battery voltage profile (2.9V–4.2V), allowing direct connection without level-shifting. |
| Quiescent Supply Current | 1μA (max) - extends battery life in always-on monitoring circuits; draws current only from RS+ node, no external VCC required. |
| Small-Signal Bandwidth | 60kHz (G=100) - supports fast transient detection (e.g., USB port hot-plug events) but not high-frequency switching noise rejection. |
| Output Resistance | 7.0–13.2kΩ - requires low-input-bias-current ADC or buffer stage to avoid loading-induced gain error. |
Pinout & Package
MAX9610HELT+T is housed in a 6-pin μDFN package (1.0mm × 1.5mm × 0.8mm footprint, pins on bottom), RoHS-compliant and tape-and-reel packaged. Pin 1 is marked by top-side notch or laser marking "OT".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Primary return path for internal bias currents; must be connected to system ground near sense resistor Kelvin return. |
| N.C. (Pin 2) | No connection | Internally unconnected; leave floating or tie to GND per layout best practice-no electrical function. |
| OUT (Pin 3) | Voltage output | High-impedance analog output (7–13kΩ); requires external RC filter or op-amp buffer before ADC sampling. |
| N.C. (Pin 5) | No connection | Second internally unconnected pin; same handling as Pin 2. |
| RS− (Pin 4) | Sense resistor load-side terminal | Kelvin connection point to low-side of RSENSE; referenced to OUT and defines output polarity (VOUT ∝ VRS+ − VRS−). |
| RS+ (Pin 6) | Sense resistor power-side terminal | Kelvin connection point to high-side of RSENSE; supplies operating current and sets common-mode voltage for entire device. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 1μA supply current | Enables continuous battery current monitoring in energy-constrained devices without measurable runtime penalty. |
| 100V/V fixed gain | Optimizes signal-to-noise ratio for low-VSENSE applications (e.g., 30mV full-scale), reducing need for post-amplification. |
| 500μV max input offset (25°C) | Supports accurate sub-10mA current resolution with 100mΩ sense resistor, critical for sleep-mode leakage detection. |
| 1.6V–5.5V common-mode range | Eliminates external level-shifting circuitry when monitoring Li+ battery voltage across full discharge cycle. |
| 60kHz bandwidth at G=100 | Meets response requirements for USB enumeration, charger insertion detection, and battery protection IC triggering. |
Applications
| USB Power Delivery Monitoring | Lithium-Ion Battery Protection |
|---|---|
|
Use Scenario: Real-time current sensing on VBUS line of USB Type-C ports to detect overcurrent and enforce PD contract limits. IC Role / Device Role / Timing Role: High-side current-sense amplifier converting shunt voltage to buffered analog output for microcontroller ADC sampling. Use Value: 100V/V gain enables 30mV full-scale sensing with 10mΩ shunt, minimizing VBUS drop (<30mV) while maintaining 12-bit ADC resolution at 3.3V reference. |
Use Scenario: Monitoring discharge current during deep sleep mode to detect abnormal leakage (>100μA) before battery reaches 2.9V cutoff. IC Role / Device Role / Timing Role: Always-on current monitor feeding low-power comparator or ADC in battery management unit (BMU). Use Value: 1μA quiescent current ensures monitoring circuit consumes <0.1% of typical 100μA sleep budget, preserving weeks of shelf life. |
| Smartphone Charging Circuit | Portable Medical Device Power Path |
|
Use Scenario: Measuring charge current during CC/CV phase in smartphone PMIC-controlled charging path. IC Role / Device Role / Timing Role: High-side amplifier placed between charger IC output and battery anode to reject ground noise and isolate battery reference. Use Value: 80–104dB CMRR rejects noise from switching charger ICs, ensuring ±0.5% total current measurement accuracy across 0.5A–2A range. |
Use Scenario: Verifying safe current delivery in handheld glucose meters or pulse oximeters powered by coin-cell or Li+ batteries. IC Role / Device Role / Timing Role: Precision current sensor validating regulated 3.3V rail integrity before enabling sensitive analog front-end (AFE) circuitry. Use Value: 500μV VOS allows reliable detection of 5mA fault current with 100mΩ shunt, triggering shutdown before thermal runaway risk arises. |
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 |
|---|---|---|---|
| MAX4008ETA+T | Same 100V/V gain, 1.6V–5.5V CM range, but 2.5μA ICC (2.5× higher) and ±1mV VOS (2× worse). | Less suitable for multi-week battery standby; acceptable where 1μA is not critical and board space allows larger SC70-6 package. | Select MAX4008ETA+T only if MAX9610HELT+T lead times exceed 12 weeks and system ICC budget permits +1.5μA overhead. |
| INA219AIDR | Integrated 12-bit ADC + I²C interface; 0.1% gain error but 10μA ICC and 2.7V–5.5V CM range (no 1.6V support). | Replaces discrete signal chain (amp + ADC + MCU GPIO); cannot monitor below 2.7V, excluding early Li+ discharge detection. | Choose INA219AIDR when digital output and system integration outweigh need for sub-2.7V operation and ultra-low ICC. |
Compared with MAX4008ETA+T, MAX9610HELT+T delivers 2.5× lower supply current and half the offset voltage-critical for multi-year battery life and microamp-level leakage detection. Against INA219AIDR, it offers 10× lower ICC and full 1.6V–5.5V coverage but requires external ADC and firmware calibration.
Availability
MAX9610HELT+T is available at Aetrix Electronics and suitable for USB power delivery monitoring, lithium-ion battery protection, smartphone charging circuits, portable medical device power path validation, and 3.3V/5V power management systems requiring stable component supply across production lifecycles.
Supply support for MAX9610HELT+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, mixed-signal, and power-management ICs for demanding industrial, automotive, and portable applications.
The MAX9610HELT+T belongs to Maxim's high-accuracy, ultra-low-power current-sense amplifier product line, engineered specifically for battery current monitoring in space- and energy-constrained Li+-powered portable electronics.
FAQ
What is the exact package type and dimensions of MAX9610HELT+T?
MAX9610HELT+T uses a 6-pin μDFN package measuring 1.0mm × 1.5mm × 0.8mm with exposed pad (package code L611+1). Pin 1 is identified by a top-side notch or laser-marked "OT". The footprint matches JEDEC MO-229 standard, and land pattern guidelines are published in Maxim document 21-0147.
Does MAX9610HELT+T require an external power supply voltage (VCC)?
No. MAX9610HELT+T derives all operating current from the RS+ pin-the high-side terminal of the external sense resistor. Its supply is the input common-mode voltage (1.6V–5.5V), eliminating need for a separate VCC rail. This simplifies power architecture in single-supply battery systems.
What is the maximum full-scale sense voltage (VSENSE) supported by MAX9610HELT+T at 3.6V supply?
At 3.6V common-mode voltage, MAX9610HELT+T supports up to ~30mV full-scale VSENSE. This is determined by VOUT(MAX) = VRS+(MAX) − VSENSE(MAX) − VOH (≤0.2V), ensuring linear output swing. Exceeding 30mV risks clipping and gain nonlinearity.
How does the pinout of MAX9610HELT+T differ from the SC70 version (e.g., MAX9610HEXK+T)?
MAX9610HELT+T (μDFN) has six pins: GND (1), N.C. (2), OUT (3), RS− (4), N.C. (5), RS+ (6). The SC70 variant MAX9610HEXK+T uses five pins: GND (1), RS− (2), OUT (3), RS+ (4), GND (5)-with no N.C. pins and dual GND connections. Layouts are not interchangeable.
Can MAX9610HELT+T be used for bidirectional current sensing?
No. MAX9610HELT+T is unidirectional and measures only current flow from RS+ to RS− (high-side, load-side grounded). For bidirectional sensing, two MAX9610HELT+T units or a dedicated bidirectional amplifier like MAX4008 must be used-one for charge, one for discharge paths.
MAX9610HELT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- -
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 60 kHz
- Current - Input Bias:
- -
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 750nA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.6 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-µDFN (2x2)
MAX9610HELT+T FAQ
1.How can I place an order for MAX9610HELT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9610HELT+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 MAX9610HELT+T reliable?
The price and inventory of MAX9610HELT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9610HELT+T is usually 5 days.
3.What payment methods are accepted for MAX9610HELT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9610HELT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9610HELT+T?
MAX9610HELT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9610HELT+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 MAX9610HELT+T?
For technical support, including MAX9610HELT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9610HELT+T requirements.
6.How does Aetrix verify that MAX9610HELT+T is sourced from the original manufacturer or authorized distributors?
All MAX9610HELT+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 MAX9610HELT+T meets industry standards.
7.What is the process for return or replacement of MAX9610HELT+T?
All MAX9610HELT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9610HELT+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 MAX9610HELT+T part is unused and in its original packaging.
Return procedure for MAX9610HELT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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