My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4165EUK-TG103
- Part No.:
- MAX4165EUK-TG103
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4165EUK-TG103.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:9,913
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4165EUK-TG103 from Maxim Integrated is a single-channel, rail-to-rail input/output operational amplifier optimized for high-output-drive, low-voltage portable audio applications. It delivers ±80mA output current, operates from +2.7V to +6.5V single supply, features 5MHz gain-bandwidth product, 250µV typical offset voltage, and 1.2mA quiescent supply current per amplifier - enabling direct headphone and speaker driver capability in space-constrained battery-powered systems.
For engineers reviewing the MAX4165EUK-TG103 datasheet, MAX4165EUK-TG103 pinout, MAX4165EUK-TG103 application, or MAX4165EUK-TG103 equivalent, this page provides verified technical context, package-validated pin functions, real-world application mappings, and two confirmed alternative parts with documented functional trade-offs for portable audio, DAC buffering, and line driving designs.
Technical Context
The MAX4165EUK-TG103 uses a dual-input-stage architecture (NPN/PNP) to achieve rail-to-rail common-mode input range extending 0.25V beyond VEE and VCC, with seamless transition near mid-supply. Its output stage delivers full swing within 25mV of VEE and 340mV of VCC at 25Ω load (VCC = 5V), supporting true single-supply operation without level-shifting circuitry.
It is unity-gain stable into capacitive loads up to 250pF and exhibits no phase reversal under overdriven inputs. The device lacks shutdown functionality (confirmed by ordering table: MAX4165 = "-" in Shutdown Mode column), distinguishing it from MAX4166/MAX4168 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +6.5V single supply - enables direct integration into Li-ion (3.0–4.2V) and 3.3V/5V systems without regulators. |
| Output Drive Current | ±80mA min - sufficient to drive 32Ω headphones or 60Ω speaker loads at >1Vrms without external buffers. |
| Gain-Bandwidth Product | 5MHz - supports audio bandwidth (20Hz–20kHz) with >200× open-loop gain margin at 20kHz. |
| Input Offset Voltage | 1.5mV max (TA = +25°C), 4.3mV max (−40°C to +85°C) - ensures <0.5% DC error in precision gain stages. |
| Rail-to-Rail I/O Swing | VOL ≤ 25mV (RL = 100kΩ), VOH ≥ VCC − 340mV (RL = 25Ω) - maximizes dynamic range in low-voltage signal chains. |
| Quiescent Supply Current | 1.2mA per amplifier (VCC = 3V) - balances performance and battery life in always-on audio paths. |
| PSRR / CMRR | 86dB PSRR, 90dB CMRR (TA = +25°C) - rejects power rail noise and common-mode interference in noisy embedded environments. |
Pinout & Package
MAX4165EUK-TG103 is packaged in a 5-pin SOT23-5 (JEDEC MO-178AA) surface-mount package with 0.95mm pitch, footprint area of 2.9mm × 1.6mm, and thermal resistance θJA = 213°C/W. Pin 1 is marked with a dot; top marking is "AABY".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Capable of sourcing/sinking ±80mA; rail-to-rail swing; high-impedance only in shutdown variants (not applicable to MAX4165). |
| 2 (IN−) | Inverting input | Differential input node; protected by 1kΩ series resistors and back-to-back diodes; bias current ±150nA max. |
| 3 (IN+) | Noninverting input | Differential input node; same protection as IN−; common-mode range extends VEE − 0.25V to VCC + 0.25V. |
| 4 (VEE) | Negative supply / ground | Reference node for single-supply operation; must be connected to system ground; not internally tied to substrate. |
| 5 (VCC) | Positive supply | Accepts +2.7V to +6.5V; requires local 0.1µF ceramic + 1µF bulk bypassing per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 0.25V beyond VEE and VCC - eliminates need for input biasing networks in single-supply sensor or DAC interfaces. |
| High output current drive | Guaranteed ±80mA sink/source - directly drives 32Ω headphones or 60Ω speakers without discrete output transistors. |
| No phase reversal on overdrive | Prevents latch-up or uncontrolled output behavior when inputs exceed rails - critical for robustness in transient-prone audio front-ends. |
| Unity-gain stability with 250pF load | Enables direct connection to long PCB traces, cables, or ADC input capacitors without isolation resistors. |
| Low input offset voltage | 250µV typical (25°C), 4.3mV max (−40°C to +85°C) - minimizes DC error in precision instrumentation and active filters. |
Applications
| Portable Headphone Driver | Single-Supply DAC Buffer |
|---|---|
|
Use Scenario: Driving 32Ω stereo headphones from a 3.3V microcontroller-based audio subsystem with no external boost converter. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail op amp configured as noninverting amplifier (gain = 2–4) with AC-coupled output. Use Value: Delivers >1.2Vrms into 32Ω with <0.02% THD+N at 1kHz, eliminating need for dedicated audio codec output drivers. |
Use Scenario: Buffering the analog output of a 16-bit DAC in a battery-powered data logger, where headroom and DC accuracy are critical. IC Role / Device Role / Timing Role: Precision unity-gain buffer with rail-to-rail input to capture full DAC output range (0–3.3V). Use Value: 250µV offset and 90dB CMRR preserve DAC's 16-bit linearity; 5MHz GBW ensures settling in <1µs for fast update rates. |
| Laptop Audio Line-Out | Transformer/Line Driver |
|
Use Scenario: Providing line-level output (2Vrms) to external speakers or docking stations in ultra-thin notebooks with strict thermal limits. IC Role / Device Role / Timing Role: High-current, low-noise op amp in inverting configuration with 25Ω series termination for EMI suppression. Use Value: ±80mA drive sustains 2Vrms into 10kΩ line loads while maintaining >95dB SNR; 1.2mA ICC enables all-day battery operation. |
Use Scenario: Driving balanced/unbalanced audio transformers in professional audio interfaces requiring wide dynamic range and low distortion. IC Role / Device Role / Timing Role: Low-distortion, high-slew-rate amplifier (SR = 21V/µs) with rail-to-rail output swing into reactive loads. Use Value: 2.1% THD+N at 4Vpp/1kHz into 250Ω matches transformer primary impedance; no phase reversal prevents transformer core saturation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-output-drive, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX44260AUB+T | Higher 10MHz GBW, lower 125µV VOS, but only ±30mA output drive; 8-pin µMAX package. | Better for wideband signal conditioning; insufficient for direct 32Ω headphone drive at >1Vrms. | Select when bandwidth >5MHz is required and load current <30mA; avoid for speaker/headphone output stages. |
| OPA1612AIDR | Lower 1.1nV/√Hz noise, ±50mA drive, 10MHz GBW, but requires dual supply or charge pump for true rail-to-rail input below VEE. | Superior for low-noise preamp stages; not suitable for single-supply 3.3V headphone drivers due to limited input range. | Choose for ultra-low-noise microphone preamps or studio-grade line drivers; not drop-in for MAX4165EUK-TG103's portable audio role. |
Compared with MAX44260AUB+T and OPA1612AIDR, the MAX4165EUK-TG103 uniquely combines ±80mA drive, rail-to-rail I/O on +2.7V–+6.5V single supply, and 5MHz GBW in a 5-pin SOT23 - making it the only option among the three capable of direct 32Ω headphone drive without external components or supply boosting.
Availability
MAX4165EUK-TG103 is available at Aetrix Electronics and suitable for portable audio systems, battery-powered instrumentation, and industrial DAC interface modules requiring stable component supply across extended temperature ranges (−40°C to +85°C) and long production lifecycles.
Supply support for MAX4165EUK-TG103 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX4165–MAX4169 family was designed specifically for low-voltage, high-output-drive audio and signal-path applications where rail-to-rail operation, precision DC performance, and compact packaging are essential - targeting portable computing, mobile accessories, and space-constrained embedded systems.
FAQ
Does MAX4165EUK-TG103 include a shutdown pin?
No, MAX4165EUK-TG103 does not have a shutdown function. The MAX4165 variant is explicitly listed in the Selector Guide with "-" under Shutdown Mode, unlike MAX4166/MAX4168 which feature an active-low SHDN pin. This means MAX4165EUK-TG103 remains continuously powered and operational whenever VCC is applied - simplifying design but requiring system-level power control if low-quiescent operation is needed.
What is the maximum capacitive load the MAX4165EUK-TG103 can drive stably?
The MAX4165EUK-TG103 is unity-gain stable with capacitive loads up to 250pF, as confirmed in the AC Electrical Characteristics table and Figure 8 (Stable Region plot). Driving larger loads (e.g., >500pF) requires an isolation resistor (e.g., 10–39Ω) in series with the output to maintain phase margin - a technique validated in Figures 9–11 of the datasheet.
Can MAX4165EUK-TG103 operate from a 3.0V lithium coin cell?
Yes, MAX4165EUK-TG103 is fully specified down to +2.7V supply and functions reliably at 3.0V. At this voltage, it maintains ±80mA output drive (tested), 5MHz GBW, and rail-to-rail input range (VEE − 0.15V to VCC + 0.15V), making it suitable for single-cell Li-metal or alkaline-powered portable devices where supply voltage sags during discharge.
Is the MAX4165EUK-TG103 pin-compatible with other op amps in the MAX416x family?
No - MAX4165EUK-TG103 uses a 5-pin SOT23-5 package with unique pinout (OUT, IN−, IN+, VEE, VCC). Dual variants (e.g., MAX4167) use 8-pin packages with different pin assignments, and shutdown versions (e.g., MAX4166) add a SHDN pin. Substituting any other MAX416x part requires PCB redesign due to incompatible pin count, function mapping, and package footprint.
What is the thermal performance limit for continuous 80mA output into a 32Ω load at 5V supply?
At VCC = 5V driving 32Ω, peak output current is ~156mA (5V/32Ω), exceeding the ±80mA rating. To stay within safe operating area, limit peak output to ≤2.56V (80mA × 32Ω) or use AC coupling. Power dissipation must remain ≤571mW (SOT23-5 derating limit); sustained 80mA into 25Ω at 5V yields ~200mW, well within spec if ambient ≤+70°C.
MAX4165EUK-TG103 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 nA
- Voltage - Input Offset:
- 350 µV
- Current - Supply:
- 1.3mA
- Current - Output / Channel:
- 125 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 6.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX4165EUK-TG103 FAQ
1.How can I place an order for MAX4165EUK-TG103 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4165EUK-TG103 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 MAX4165EUK-TG103 reliable?
The price and inventory of MAX4165EUK-TG103 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4165EUK-TG103 is usually 5 days.
3.What payment methods are accepted for MAX4165EUK-TG103?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4165EUK-TG103 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4165EUK-TG103?
MAX4165EUK-TG103 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4165EUK-TG103 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 MAX4165EUK-TG103?
For technical support, including MAX4165EUK-TG103 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4165EUK-TG103 requirements.
6.How does Aetrix verify that MAX4165EUK-TG103 is sourced from the original manufacturer or authorized distributors?
All MAX4165EUK-TG103 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 MAX4165EUK-TG103 meets industry standards.
7.What is the process for return or replacement of MAX4165EUK-TG103?
All MAX4165EUK-TG103 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4165EUK-TG103, 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 MAX4165EUK-TG103 part is unused and in its original packaging.
Return procedure for MAX4165EUK-TG103:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4165EUK-TG103 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…
