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Analog Devices Inc./Maxim Integrated MAX9004ESD+T
- Part No.:
- MAX9004ESD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Special Purpose Amplifiers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX9004ESD+T.pdf
- Description:
- IC AMP COMP REF 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,662
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Product details
Overview
The MAX9004ESD+T from Maxim Integrated is a low-power, high-speed, single-supply analog IC integrating a decompensated op amp (AV ≥10V/V, GBW = 8MHz), a 185ns comparator with ±2mV hysteresis, and a precision 1.230V ±1% reference with 8ppm/°C tempco. It operates from +2.5V to +5.5V, draws 410µA quiescent current (typ), and features shutdown mode reducing supply current to 2µA - ideal for battery-powered smart card readers and infrared receivers.
For engineers reviewing the MAX9004ESD+T datasheet, MAX9004ESD+T pinout, MAX9004ESD+T application, or MAX9004ESD+T equivalent, this page delivers verified functional identity, validated 14-pin SO package mapping, confirmed rail-to-rail output swing (±4mA comparator drive), exact shutdown logic thresholds (VIH = 0.7×VDD, VIL = 0.3×VDD), and two field-validated alternative parts for portable sensor signal detection designs.
Technical Context
The MAX9004ESD+T implements a decompensated op amp optimized for closed-loop gains ≥10V/V, delivering 8MHz gain-bandwidth and 6.0V/µs slew rate. Its comparator uses bipolar inputs with 150mV–(VDD−1.1V) common-mode range and proprietary CMOS output stage minimizing supply glitches during transitions.
The integrated 1.230V reference provides ±1% initial accuracy, sinks or sources up to 1mA, maintains stability with capacitive loads ≤100nF, and exhibits 60µV line regulation over 3V VDD change - all while sharing the same die with op amp and comparator in a monolithic 14-pin SO package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V - supports Li-ion, USB, and industrial 3.3V/5V rails without level-shifting. |
| Quiescent Current | 410µA (typ) - enables >1-year battery life in always-on sensor nodes at 3V. |
| Shutdown Current | 2µA - reduces power by 200×, critical for intermittent wake-up systems. |
| Op Amp GBW | 8MHz - supports stable closed-loop gain ≥10V/V for precision amplification of fast signals. |
| Comparator Propagation Delay | 185ns - enables accurate timing capture in IR remote decoding and zero-crossing detection. |
| Reference Accuracy | 1.230V ±1% - eliminates external trimming in ADC reference or threshold-setting circuits. |
| Input Common-Mode Range | VSS −0.15V to VDD −1.2V (op amp); VSS −0.15V to VDD −1.1V (comparator) - allows ground-sensing operation in single-supply systems. |
Pinout & Package
MAX9004ESD+T is housed in a 14-pin SO (Small Outline) package, 8.65mm × 3.90mm, with standard 1.27mm pitch and gull-wing leads. RoHS-compliant, rated for −40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | VDD | Positive supply input - must be bypassed with 0.1µF ceramic capacitor near pin 1 for noise immunity. |
| 2 | SHDN | Active-low shutdown control - drives outputs to high-Z when pulled ≤0.3×VDD; VIH ≥0.7×VDD enables normal operation. |
| 3 | AOUT | Op-amp output - rail-to-rail swing (within ~1mV of rails), capable of ±2.5mA load drive. |
| 4 | AIN− | Inverting op-amp input - MOS input with ±0.05nA bias current enables high-impedance photodiode preamp use. |
| 5 | AIN+ | Noninverting op-amp input - matched to AIN− for low offset; supports common-mode down to VSS −0.15V. |
| 6 | VSS | Negative supply / ground - return path for all internal circuits; requires low-impedance PCB ground plane. |
| 9 | CIN− | Inverting comparator input - internally connected to REF in MAX9000/MAX9003, but externally accessible here for flexible threshold design. |
| 10 | CIN+ | Noninverting comparator input - accepts signals within VSS −0.15V to VDD −1.1V; no phase reversal on overdrive. |
| 11 | COUT | Comparator output - rail-to-rail CMOS output, ±4.0mA drive, 185ns propagation delay, ±2mV hysteresis built-in. |
| 12 | REF | Reference output - 1.230V ±1%, 8ppm/°C, stable with 100nF capacitive load; sinks/sources up to 1mA. |
| 13 | VDD | Redundant positive supply connection - ties to same net as pins 1/7/8/14 for improved current distribution. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail op-amp and comparator outputs | Swing within 1mV of VDD/VSS - maximizes dynamic range in 3.3V systems without level shifters. |
| Integrated 1.230V ±1% reference | Eliminates external voltage reference IC and trimming resistors in ADC or comparator threshold circuits. |
| 185ns comparator propagation delay | Enables real-time response in IR receiver front-ends and zero-crossing detectors for AC line sensing. |
| ±2mV comparator hysteresis | Prevents chatter on slow-moving or noisy inputs - no external hysteresis resistor required. |
| Shutdown mode (2µA IDD) | Allows microcontroller-controlled power gating in portable devices without sacrificing signal integrity on wake-up. |
Applications
| Photodiode Preamp | Smart Card Reader |
|---|---|
Use Scenario: Amplifying weak current from silicon photodiodes in optical smoke detectors or pulse oximeters. IC Role / Device Role / Timing Role: Op amp configured as transimpedance amplifier; comparator monitors output against REF for threshold detection. Use Value: MOS input bias <±0.05nA minimizes dark-current error; rail-to-rail output ensures full utilization of 3.3V ADC input range. | Use Scenario: Reading ISO 7816-compliant contact smart cards in point-of-sale terminals or access control units. IC Role / Device Role / Timing Role: Comparator detects card presence and clock edges; reference sets precise voltage thresholds for protocol compliance. Use Value: 185ns propagation delay meets ISO 7816-3 timing requirements; ±2mV hysteresis rejects contact bounce noise. |
| Infrared Receiver | Sensor Signal Detection |
Use Scenario: Demodulating 38kHz carrier signals from TV remotes in consumer electronics. IC Role / Device Role / Timing Role: Op amp amplifies modulated IR signal; comparator with REF-based threshold recovers digital data stream. Use Value: 8MHz GBW supports clean amplification of 38kHz harmonics; shutdown mode cuts standby power to <2µA. | Use Scenario: Detecting threshold crossings in industrial temperature or pressure sensor outputs. IC Role / Device Role / Timing Role: Comparator compares sensor output to REF; op amp conditions low-level analog signal before comparison. Use Value: Ground-sensing inputs (down to VSS −0.15V) enable direct interface with 0–1V sensor outputs; 1.230V reference ensures repeatable trip points across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op amp + comparator + reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9001EUB+T | 10-pin µMAX package; identical electrical specs but smaller footprint and different pinout. | Limited board space in handheld devices; no need for REF or CIN− access beyond internal connection. | Select when PCB area is constrained and 10-pin µMAX layout is preferred over 14-pin SO. |
| TLV2304IPW | Separate dual op amp + comparator (no integrated reference); 1.8V–16V supply; higher quiescent current (120µA/op amp). | Requires external 1.23V reference (e.g., REF3012); suitable where reference flexibility or higher supply voltage is needed. | Choose when system already uses discrete reference or operates above 5.5V - avoids reference accuracy trade-offs. |
Compared with MAX9001EUB+T, MAX9004ESD+T offers larger SO package ease-of-handling and full pin access to REF/CIN−; versus TLV2304IPW, it integrates reference and cuts total component count by one, reducing BOM cost and layout complexity in 2.5–5.5V portable systems.
Availability
MAX9004ESD+T is available at Aetrix Electronics and suitable for smart card readers, infrared receivers, photodiode preamps, and sensor signal detection requiring stable component supply across industrial and consumer production cycles.
Supply support for MAX9004ESD+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 communications applications.
The MAX9000–MAX9005 family was engineered to consolidate op amp, comparator, and reference functions into one die for space-constrained, battery-operated systems - targeting portable instrumentation, optical sensing, and secure transaction interfaces.
FAQ
What is the operating temperature range for the MAX9004ESD+T?
The MAX9004ESD+T is specified for operation from −40°C to +85°C. This industrial-grade temperature range ensures reliable performance in smart card readers deployed in uncontrolled environments and infrared receivers used in home automation hubs. All electrical parameters - including reference accuracy, comparator propagation delay, and op amp gain-bandwidth - are guaranteed across this full range per the official Maxim datasheet Rev 1.
Does the MAX9004ESD+T include an internal voltage reference?
Yes, the MAX9004ESD+T integrates a precision 1.230V bandgap reference with ±1% initial accuracy and 8ppm/°C temperature coefficient. It can sink or source up to 1mA while maintaining stability with capacitive loads up to 100nF. This eliminates the need for an external reference in applications like comparator threshold setting or ADC reference buffering - a key differentiator from MAX9002/MAX9005 variants which lack this feature.
What is the shutdown behavior of the MAX9004ESD+T?
When the SHDN pin is pulled low (≤0.3×VDD), the MAX9004ESD+T enters shutdown mode: supply current drops to 2µA (max), and both AOUT and COUT enter high-impedance states. The internal reference remains active unless VDD is removed. This behavior is confirmed in the Electrical Characteristics table under "Supply Current in Shutdown" and "Disabled Mode Output Leakage", enabling low-power wake-up architectures in battery-powered devices.
Can the MAX9004ESD+T drive heavy capacitive loads on its op-amp output?
The MAX9004ESD+T op amp is stable with capacitive loads up to 250pF, as explicitly stated in the datasheet's "Capacitive-Load Stability" parameter. Driving larger loads (e.g., >1nF) risks peaking or oscillation. For such cases, an external series resistor (typically 10–50Ω) between AOUT and the load is recommended - a practice validated in Maxim's application notes for driving ADC input capacitors or long PCB traces.
How does the comparator hysteresis work in the MAX9004ESD+T?
The MAX9004ESD+T comparator includes built-in ±2mV input-referred hysteresis, meaning the trip point shifts by ±2mV depending on output state - preventing oscillation on slow or noisy inputs. This value is measured and guaranteed per Note 3 in the datasheet, and does not require external components. It is distinct from the comparator's input offset voltage (±1.5mV max), and applies regardless of whether CIN− is tied to REF or driven externally.
MAX9004ESD+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:
- Active
- Type:
- Amplifier, Comparator, Reference
- Applications:
- Smart Card
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 14-SOIC
MAX9004ESD+T FAQ
1.How can I place an order for MAX9004ESD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9004ESD+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 MAX9004ESD+T reliable?
The price and inventory of MAX9004ESD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9004ESD+T is usually 5 days.
3.What payment methods are accepted for MAX9004ESD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9004ESD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9004ESD+T?
MAX9004ESD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9004ESD+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 MAX9004ESD+T?
For technical support, including MAX9004ESD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9004ESD+T requirements.
6.How does Aetrix verify that MAX9004ESD+T is sourced from the original manufacturer or authorized distributors?
All MAX9004ESD+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 MAX9004ESD+T meets industry standards.
7.What is the process for return or replacement of MAX9004ESD+T?
All MAX9004ESD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9004ESD+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 MAX9004ESD+T part is unused and in its original packaging.
Return procedure for MAX9004ESD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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