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Analog Devices Inc./Maxim Integrated MAX4163EBL-T
- Part No.:
- MAX4163EBL-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 9-WFBGA, CSPBGA
- Datasheet:
-
MAX4163EBL-T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 9UCSP
- Quantity:
- Payment:
- Shipping:
Inventory:37,571
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Product details
Overview
MAX4163EBL-T from Maxim Integrated is a single-channel, micropower, rail-to-rail input/output operational amplifier optimized for ultra-low-power, single-supply systems. It delivers 200kHz gain-bandwidth product, 25µA quiescent current per amplifier, and true rail-to-rail operation from 2.5V to 10V supplies - enabling precision signal conditioning in battery-powered pH probes and ionization detectors where input bias current below 1.0pA and 250mV beyond-rail common-mode range are critical.
For engineers reviewing the MAX4163EBL-T datasheet, MAX4163EBL-T pinout, MAX4163EBL-T application, or MAX4163EBL-T equivalent, this page provides verified technical context, package-specific pin mapping, real-world application constraints (e.g., UCSP thermal derating, charge-pump feedthrough), and validated alternative op amps with documented functional trade-offs.
Technical Context
The MAX4163EBL-T employs a proprietary BiCMOS architecture with an internal charge pump generating ±2V auxiliary rails, enabling true rail-to-rail I/O while maintaining high CMRR (>85dB) and PSRR (>80dB) without mid-swing nonlinearity. Its unity-gain stability extends to any capacitive load, including 1µF, due to internal compensation independent of external feedback.
This architecture sustains >100dB open-loop gain across temperature and load, supports output swing within 150mV of rails at 1mA, and eliminates phase reversal for overdriven inputs - all while consuming only 25µA per amplifier at 3V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 200kHz - enables stable amplification of low-frequency sensor signals (e.g., pH electrode outputs) without bandwidth sacrifice at micropower levels. |
| Quiescent Current per Amplifier | 25µA - allows multi-year battery life in portable medical instruments operating from coin cells or single alkaline batteries. |
| Input Bias Current | 1.0pA typical - essential for high-impedance pH probe and ionization detector interfaces where leakage would corrupt mV-level signals. |
| Input Common-Mode Range | VSS − 0.25V to VDD + 0.25V - supports direct sensing of signals extending beyond supply rails, critical for unbuffered electrochemical sensors. |
| Rail-to-Rail Output Swing | Within 150mV of VSS/VDD at 1mA load - maximizes dynamic range in 3V systems, preserving >95% of full-scale ADC input range. |
| Supply Voltage Range | 2.5V to 10V single supply - accommodates Li-ion (3.0–4.2V), AA/AAA (1.5–3.0V ×2), and industrial 5V/9V rails without level-shifting. |
| Charge-Pump Feedthrough | 100µVP-P at 700kHz - negligible in DC-coupled sensor front-ends but requires filtering if used in AC-coupled audio paths. |
Pinout & Package
The MAX4163EBL-T is housed in an 8-pin Ultra Chip-Scale Package (UCSP™, B9-5 footprint), measuring 1.5mm × 1.5mm with 0.5mm pitch. This wafer-level package requires controlled reflow (≤260°C peak) and board-level reliability validation per Maxim's UCSP Reliability Notice.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VSS) | Negative power supply / ground reference | Must be connected directly to low-impedance ground plane; UCSP thermal pad (if present) is electrically tied to VSS. |
| 2 (IN−) | Inverting input | High-impedance node (TΩ input resistance); sensitive to PCB leakage - requires guard ring and clean layout. |
| 3 (IN+) | Noninverting input | Same 1.0pA bias current spec as IN−; used for differential sensing or unity-gain buffer configurations. |
| 4 (N.C.) | No connection | Internally unconnected bump; must remain floating - no trace or solder mask should contact this pad. |
| 5 (N.C.) | No connection | Second unused bump; identical handling requirements as Pin 4. |
| 6 (OUT) | Amplifier output | Capable of sourcing/sinking ≥1mA while staying within 150mV of rails; stable driving 1µF capacitive loads. |
| 7 (VDD) | Positive power supply | Requires local 1µF + 0.1µF ceramic bypassing; UCSP thermal performance degrades above 4.7mW/°C derating limit. |
| 8 (N.C.) | No connection | Third unused bump; no electrical or mechanical function - leave unmasked and unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 250mV beyond both supply rails - enables direct interface to sensors whose output exceeds VDD or falls below VSS (e.g., thermopiles, photodiodes). |
| Unity-gain stability with any capacitive load | Eliminates need for external compensation networks when driving ADC input capacitors, long cables, or piezoelectric transducers. |
| No phase reversal on overdriven inputs | Prevents latch-up or erroneous output polarity during transient overload - critical for fault-tolerant medical instrumentation. |
| Internal short-circuit protection | Withstands continuous output short to either rail without damage - simplifies design of robust sensor front-ends in field-deployed equipment. |
| Low input offset voltage tempco | 2µV/°C max - ensures <10µV drift over −40°C to +85°C, preserving accuracy in uncalibrated portable diagnostics. |
Applications
| pH Measurement Systems | Ionization Smoke Detectors |
|---|---|
Use Scenario: High-impedance glass electrode interfacing to microcontroller ADC in handheld pH meters. IC Role / Device Role / Timing Role: Precision DC-coupled buffer amplifier converting nanoamp electrode current into low-impedance voltage for 12-bit ADC sampling. Use Value: 1.0pA input bias current prevents electrode polarization error; rail-to-rail output maximizes ADC utilization at 3.3V supply. |
Use Scenario: Amplifying picoamp current from alpha-particle ionization chamber in battery-powered smoke alarms. IC Role / Device Role / Timing Role: Transimpedance amplifier converting ion current to measurable voltage, operating continuously from CR123A battery. Use Value: 25µA quiescent current enables >5-year standby life; 250mV beyond-rail input range captures full chamber signal swing. |
| Portable Medical Sensors | Low-Voltage Data Acquisition |
Use Scenario: Front-end signal conditioning for wearable ECG or glucose monitor using single 3V coin cell. IC Role / Device Role / Timing Role: Instrumentation-grade amplifier rejecting common-mode noise while preserving µV-level biopotential signals. Use Value: >85dB CMRR and PSRR suppress power rail noise; 200kHz GBWP supports fast settling for multiplexed analog channels. |
Use Scenario: Signal conditioning stage in industrial IoT node measuring temperature, pressure, and humidity with 16-bit SAR ADC. IC Role / Device Role / Timing Role: Rail-to-rail output driver ensuring full-scale ADC input range utilization across varying supply voltages (2.7–5.5V). Use Value: Output swing within 150mV of rails preserves >94% of dynamic range at 3V; UCSP footprint saves PCB area in space-constrained modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar micropower, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4162EUK+ | Identical core specs (25µA, 200kHz, 1.0pA), but in 5-pin SOT23 - larger footprint, no UCSP thermal constraints. | Better suited for prototyping or high-reliability industrial boards where UCSP assembly risk is unacceptable. | Select when avoiding wafer-level packaging complexity; accepts same schematic but requires PCB layout change. |
| TLV8512IDR | Lower quiescent current (420nA), but reduced GBWP (10kHz) and higher input bias current (10pA); no beyond-rail input capability. | Appropriate only for ultra-long-life battery apps with low-bandwidth signals (e.g., temperature logging), not pH/ionization. | Choose only if µA-level current dominates over signal fidelity; not suitable for high-Z sensor buffering. |
Compared with MAX4163EBL-T, MAX4162EUK+ offers identical electrical performance in a more manufacturable package, while TLV8512IDR trades bandwidth and input impedance for extreme current reduction - making MAX4163EBL-T the sole option meeting simultaneous requirements for sub-1pA bias, 200kHz GBWP, and beyond-rail input range.
Availability
MAX4163EBL-T is available at Aetrix Electronics and suitable for battery-powered devices, medical instruments, and portable equipment requiring stable component supply with guaranteed long-term availability and RoHS-compliant sourcing.
Supply support for MAX4163EBL-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 demanding industrial, medical, and communications applications, emphasizing low-power innovation and high-reliability packaging.
The MAX416x family was engineered specifically for micropower, rail-to-rail sensor signal conditioning in portable and battery-critical systems - prioritizing ultra-low input bias current, wide supply range, and robustness against overvoltage conditions.
FAQ
What is the maximum capacitive load the MAX4163EBL-T can drive while remaining stable?
The MAX4163EBL-T is unity-gain stable and internally compensated to drive any capacitive load, including up to 1µF, without external compensation. This is confirmed in the Typical Operating Characteristics section (Figure 2, "Large Capacitive-Load Drive") and Applications Information, where it demonstrates clean step response with CL = 1µF and RL = 100kΩ. Stability holds across temperature and supply voltage (2.5V–10V), making MAX4163EBL-T suitable for driving ADC input capacitors and long cables.
Does the MAX4163EBL-T require external components for its internal charge pump to operate?
No, the MAX4163EBL-T's internal charge pump requires no external components and is fully self-contained. As stated in the Applications Information section, the pump generates internal rails ~2V beyond each supply rail to enable true rail-to-rail I/O. Users observe only two side effects: 100µVP-P 700kHz switching feedthrough at the output and ≤20µs power-up stabilization time (Figure 3). Neither necessitates external circuitry - bypassing remains limited to standard VDD/VSS decoupling.
Can the MAX4163EBL-T operate from a 2.0V supply despite the 2.5V minimum rating?
Yes - although the absolute minimum specified supply is 2.5V, the datasheet explicitly states that the MAX4163EBL-T "typically provides full rail-to-rail operation below 2.0V" (Applications Information, "Rail-to-Rail Inputs and Outputs"). Figure 1 ("Rail-to-Rail I/O: VDD = 2V") confirms functional rail-to-rail input/output behavior at 2V. However, parameters like GBWP and PSRR are not guaranteed below 2.5V; design margins should be verified per application.
What is the thermal derating requirement for the MAX4163EBL-T in its UCSP package?
The MAX4163EBL-T in UCSP (B9-5) has a continuous power dissipation limit of 379mW at TA = +70°C, with derating at 4.7mW/°C above that temperature. This is specified in the Absolute Maximum Ratings table. Designers must calculate worst-case power (IDD × VDD) and ensure junction temperature stays ≤+150°C, especially in sealed enclosures or high ambient environments. The UCSP's direct die-to-PCB attachment makes board copper area and thermal vias critical for heat dissipation.
Is the MAX4163EBL-T pin-compatible with other members of the MAX4162/MAX4163/MAX4164 family?
No - the MAX4163EBL-T (8-pin UCSP) is not pin-compatible with the SO or µMAX versions of MAX4163, nor with MAX4162 (5-pin SOT23 or 8-pin SO) or MAX4164 (14-pin SO). Pin Configurations show distinct layouts: UCSP uses bumps A1–C3 with three N.C. pins, while SO packages route signals to edge pins. Substituting packages requires full PCB redesign; only electrical equivalents (e.g., MAX4162EUK+) share functional specs but differ physically.
MAX4163EBL-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 9-WFBGA, CSPBGA
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.115V/µs
- Gain Bandwidth Product:
- 200 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 25µA (x2 Channels)
- Current - Output / Channel:
- 15 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 9-UCSP (1.52x1.52)
MAX4163EBL-T FAQ
1.How can I place an order for MAX4163EBL-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4163EBL-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 MAX4163EBL-T reliable?
The price and inventory of MAX4163EBL-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4163EBL-T is usually 5 days.
3.What payment methods are accepted for MAX4163EBL-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4163EBL-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4163EBL-T?
MAX4163EBL-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4163EBL-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 MAX4163EBL-T?
For technical support, including MAX4163EBL-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4163EBL-T requirements.
6.How does Aetrix verify that MAX4163EBL-T is sourced from the original manufacturer or authorized distributors?
All MAX4163EBL-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 MAX4163EBL-T meets industry standards.
7.What is the process for return or replacement of MAX4163EBL-T?
All MAX4163EBL-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4163EBL-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 MAX4163EBL-T part is unused and in its original packaging.
Return procedure for MAX4163EBL-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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