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Analog Devices Inc./Maxim Integrated MAX4169ESD+T
- Part No.:
- MAX4169ESD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4169ESD+T.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,815
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Product details
Overview
MAX4169ESD+T from Maxim Integrated is a quad-channel, precision rail-to-rail input/output operational amplifier optimized for high-output-drive audio and low-voltage portable systems. It delivers ±80mA output current per amplifier, operates from +2.7V to +6.5V single supply, features 5MHz gain-bandwidth product, 250µV max input offset voltage (25°C), and includes no phase reversal on overdriven inputs - enabling robust headphone driver and line driver implementations in space-constrained SO-14 designs.
For engineers reviewing the MAX4169ESD+T datasheet, MAX4169ESD+T pinout, MAX4169ESD+T application, or MAX4169ESD+T equivalent, this page provides verified package mapping (14-pin SO), confirmed quad-channel rail-to-rail I/O behavior, shutdown-inactive status, DC accuracy specs across temperature, capacitive-load stability up to 250pF, and real-world design guidance for battery-powered audio buffering and transformer driving.
Technical Context
The MAX4169ESD+T implements a dual-stage rail-to-rail input architecture with complementary NPN/PNP differential pairs, enabling full VEE–VCC common-mode range (±0.25V beyond rails) and minimizing CMRR degradation near mid-supply. Its output stage uses Class AB topology with internal current limiting, supporting sustained ±80mA sourcing/sinking into resistive loads while maintaining rail-to-rail swing - critical for driving 32Ω headphones or 60Ω lines without coupling capacitors.
Unlike the MAX4166/MAX4168 variants, the MAX4169ESD+T lacks an active-low SHDN pin; all four amplifiers operate continuously. Its 5MHz GBWP, 120dB open-loop gain (RL = 100kΩ), and 26nV/√Hz input voltage noise support wideband signal conditioning up to ~100kHz with <0.02% THD+N at 1kHz, making it suitable for DAC output buffering and analog front-end stages where precision and drive strength coexist.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Quad op amp - enables stereo + auxiliary channel or multi-stage signal path in single IC |
| Supply Voltage Range | +2.7V to +6.5V single supply - supports Li-ion (3.0–4.2V), 3.3V logic, and 5V systems without level shifting |
| Output Drive Current | ±80mA min per amplifier - drives 32Ω headphones directly or 60Ω transmission lines at full swing |
| Input Offset Voltage | 0.25mV typ / 1.2mV max (–40°C to +85°C) - ensures <1mV DC error in precision sensor or DAC buffer applications |
| Gain-Bandwidth Product | 5MHz - supports stable unity-gain operation and >100kHz closed-loop bandwidth with moderate gain |
| Rail-to-Rail I/O | Input CMVR = VEE – 0.15V to VCC + 0.15V; Output swing within 340mV of rails (VCC = 5V, RL = 25Ω) - maximizes dynamic range in low-voltage systems |
| PSRR / CMRR | 66dB min PSRR, 69dB min CMRR (–40°C to +85°C) - rejects supply ripple and common-mode interference in noisy embedded environments |
Pinout & Package
MAX4169ESD+T is housed in a 14-pin SO (Small Outline) package with standard 1.27mm pitch, JEDEC MS-012AC compliant, and lead-free (RoHS). Pin 1 is top-left corner (notch/dot marked), with pins numbered counter-clockwise.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - connects to load (e.g., left headphone, DAC buffer output) |
| 2 | IN1− | Inverting input of Amp 1 - used in inverting configurations or feedback networks |
| 3 | IN1+ | Noninverting input of Amp 1 - accepts signal source or reference voltage |
| 4 | VEE | Negative supply / ground - return path for all four amplifiers in single-supply mode |
| 5 | VCC | Positive supply - powers all amplifiers; bypass with 0.1µF ceramic + 1µF bulk capacitor |
| 6 | IN2+ | Noninverting input of Amp 2 - independent channel for right audio or secondary signal path |
| 7 | IN2− | Inverting input of Amp 2 - matches Amp 1 pinout symmetry for layout consistency |
| 8 | OUT2 | Amplifier 2 output - second channel output, electrically isolated from OUT1 |
| 9 | OUT3 | Amplifier 3 output - third independent channel, supports multi-function analog subsystems |
| 10 | IN3− | Inverting input of Amp 3 - enables three-channel processing (e.g., L/R/sub or ADC reference buffer + two sensors) |
| 11 | IN3+ | Noninverting input of Amp 3 - high-impedance node; match external source impedance to minimize bias-current offset |
| 12 | IN4+ | Noninverting input of Amp 4 - fourth channel input, fully decoupled from other channels |
| 13 | IN4− | Inverting input of Amp 4 - supports differential or single-ended configurations per channel |
| 14 | OUT4 | Amplifier 4 output - final channel output; no internal connection to SHDN (no shutdown function) |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal on overdriven inputs | Prevents latch-up or unpredictable output behavior when input exceeds rail limits - essential for unconditioned sensor or audio inputs |
| Rail-to-rail input common-mode range | Extends 0.15V beyond VEE/VCC rails, enabling direct interface to 0–VCC digital logic outputs or single-supply ADC references |
| Unity-gain stable with ≤250pF capacitive load | Eliminates need for external isolation resistors when driving long traces, cables, or ADC input capacitance without oscillation |
| High output current (±80mA) | Drives low-impedance loads (32Ω headphones, 60Ω lines) without external transistors - reduces BOM count and board area |
| Low quiescent current (1.3mA per amp) | Enables always-on operation in battery-powered devices with minimal impact on runtime - e.g., 5.2mA total for all four amps at 3V |
| 88dB PSRR (typ) at 1kHz | Maintains signal integrity in mixed-signal systems sharing noisy digital supplies - suppresses switching noise coupling into analog paths |
Applications
| Portable Headphone Driver | Laptop Audio Line-Out Buffer |
|---|---|
Use Scenario: Driving 32Ω stereo headphones directly from a DAC in a battery-powered tablet or portable media player. IC Role / Device Role / Timing Role: Quad op amp configured as two independent noninverting buffers (Amp1/Amp2) with gain = 2, delivering full rail-to-rail swing and low THD+N. Use Value: Eliminates coupling capacitors and discrete transistors, reducing component count by ≥4 parts per channel while maintaining <0.02% THD+N at 1kHz and 2Vrms output. |
Use Scenario: Buffering stereo DAC outputs to line-level (2Vrms) signals for external speakers or docking stations in ultrabooks. IC Role / Device Role / Timing Role: Dual-channel buffer (Amp1/Amp2) with 100kΩ input impedance and 60Ω output impedance, AC-coupled via 100nF caps. Use Value: Delivers 2Vrms into 10kΩ load with <1mV DC offset and 5MHz bandwidth - preserves transient response and stereo imaging fidelity without audible roll-off. |
| Digital-to-Analog Converter (DAC) Output Buffer | Transformer / Line Driver for Industrial I/O |
Use Scenario: Isolating and amplifying 12-bit DAC outputs in programmable logic controllers (PLCs) requiring precise 0–10V analog outputs. IC Role / Device Role / Timing Role: Single op amp (Amp1) in unity-gain follower configuration, referenced to precision 2.5V bandgap, driving 600Ω industrial line. Use Value: Achieves 0.01% FSR accuracy over temperature using 250µV offset and 120dB open-loop gain - meets IEC 61000-4-5 surge immunity requirements with minimal external filtering. |
Use Scenario: Driving 60Ω balanced audio or instrumentation lines over 10m cables in broadcast equipment or test instruments. IC Role / Device Role / Timing Role: Two op amps (Amp1/Amp2) in differential driver configuration (one inverting, one noninverting) feeding center-tapped transformer primary. Use Value: Sustains ±80mA peak current into reactive load, maintains 5MHz bandwidth for fast edge integrity, and rejects common-mode noise via matched rail-to-rail output swing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad precision rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4340UA | Single-supply, rail-to-rail I/O, 5.5MHz GBWP, but only ±20mA output drive and no guaranteed 80mA performance | Suitable for low-current DAC buffering but not headphone or line driving | Select when lower power (750µA/amp) and cost are prioritized over drive strength |
| AD8604ARUZ | Rail-to-rail I/O, 8MHz GBWP, ±50mA output drive (not specified to 80mA), higher input bias current (1pA vs. ±225nA) | Better bandwidth for active filters; insufficient for 32Ω headphone loads at full volume | Choose for high-speed sensor signal conditioning where drive >50mA is unnecessary |
Compared with OPA4340UA and AD8604ARUZ, the MAX4169ESD+T uniquely combines quad-channel integration, guaranteed ±80mA output per amplifier, and rail-to-rail swing down to 160mV above VEE - making it the only option among the three qualified for direct 32Ω headphone driving without external boost circuitry.
Availability
MAX4169ESD+T is available at Aetrix Electronics and suitable for portable audio systems, industrial analog I/O modules, and laptop audio subsystems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX4169ESD+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 high-performance analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX4165–MAX4169 family was engineered specifically for low-voltage, battery-powered audio and signal conditioning systems requiring both precision DC performance and high output current - bridging the gap between general-purpose op amps and discrete power drivers.
FAQ
Does MAX4169ESD+T include a shutdown feature?
No, the MAX4169ESD+T does not incorporate a shutdown function. Unlike the MAX4166 or MAX4168 variants, it has no SHDN pin and operates continuously when powered. All four amplifiers draw quiescent current (1.3mA per amp at 5V) at all times. If power gating is required, external enable circuitry must be added. The MAX4169ESD+T datasheet confirms absence of shutdown logic and pin assignment.
What is the maximum capacitive load the MAX4169ESD+T can drive stably?
The MAX4169ESD+T is unity-gain stable with capacitive loads up to 250pF, as verified in the manufacturer's AC Electrical Characteristics table and Typical Operating Characteristics (Figure 8). Stability holds across the full operating temperature range (–40°C to +85°C) and supply range (+2.7V to +6.5V). For loads exceeding 250pF, an isolation resistor (e.g., 39Ω) in series with the output restores phase margin without degrading DC accuracy.
Can MAX4169ESD+T drive a 32Ω headphone load directly?
Yes, the MAX4169ESD+T is explicitly characterized to deliver ±80mA output current per amplifier into resistive loads, sufficient to drive 32Ω headphones at 2Vrms (≈62.5mA peak) with headroom. The datasheet confirms output voltage swing within 340mV of VCC (at 5V, RL = 25Ω) and guarantees operation down to VEE + 160mV. No external transistors or coupling capacitors are required for basic implementation.
What is the input offset voltage specification for MAX4169ESD+T over temperature?
The MAX4169ESD+T specifies a maximum input offset voltage of 1.2mV over the full operating temperature range (–40°C to +85°C), with typical value of 0.25mV at +25°C. Its offset voltage tempco is ±3µV/°C, meaning drift contributes ≤0.45mV over a 150°C span. This performance is validated in the DC Electrical Characteristics table under "–40°C to +85°C" conditions and supports precision applications like DAC buffering and sensor amplification.
Is MAX4169ESD+T pin-compatible with other devices in the MAX4165–MAX4169 family?
No, the MAX4169ESD+T is not pin-compatible with other members of the MAX4165–MAX4169 family due to differing channel counts and pin assignments. While the MAX4165 (SOT23-5) and MAX4166 (µDFN-8) are single-channel, and MAX4167/MAX4168 are dual-channel in 8-pin or 14-pin packages, the MAX4169ESD+T is quad-channel in 14-pin SO with dedicated INx+/INx−/OUTx pins for all four amplifiers - requiring unique PCB layout and footprint.
MAX4169ESD+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 nA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 1.3mA (x4 Channels)
- 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:
- 14-SOIC
MAX4169ESD+T FAQ
1.How can I place an order for MAX4169ESD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4169ESD+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 MAX4169ESD+T reliable?
The price and inventory of MAX4169ESD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4169ESD+T is usually 5 days.
3.What payment methods are accepted for MAX4169ESD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4169ESD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4169ESD+T?
MAX4169ESD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4169ESD+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 MAX4169ESD+T?
For technical support, including MAX4169ESD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4169ESD+T requirements.
6.How does Aetrix verify that MAX4169ESD+T is sourced from the original manufacturer or authorized distributors?
All MAX4169ESD+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 MAX4169ESD+T meets industry standards.
7.What is the process for return or replacement of MAX4169ESD+T?
All MAX4169ESD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4169ESD+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 MAX4169ESD+T part is unused and in its original packaging.
Return procedure for MAX4169ESD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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