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Analog Devices Inc./Maxim Integrated MAX998EUT+TG002
- Part No.:
- MAX998EUT+TG002
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- -
- Datasheet:
-
MAX998EUT+TG002.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:2,456
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Product details
Overview
MAX998EUT+TG002 from Maxim Integrated is a single, high-speed, low-power comparator optimized for +2.7V to +5.5V single-supply operation. It delivers 20ns propagation delay, 225µA supply current per comparator, and 1nA shutdown current, with rail-to-rail output and ground-sensing inputs. It is used in IR receivers, battery-powered threshold detection, and 3V digital line reception.
For engineers reviewing the MAX998EUT+TG002 datasheet, MAX998EUT+TG002 pinout, MAX998EUT+TG002 application, or MAX998EUT+TG002 equivalent, key selection criteria include shutdown functionality, SOT23-6 package compatibility, input common-mode range extending 200mV below ground, and guaranteed 20ns propagation delay at 50mV overdrive.
Technical Context
The MAX998EUT+TG002 implements a CMOS-input, push-pull output comparator architecture with internal hysteresis (0.5–4.0mV input-referred) to suppress noise-induced oscillation. Its input stage supports common-mode voltages from –0.2V to (VCC – 1.2V), enabling true ground-sensing operation without level-shifting circuitry.
Shutdown is controlled via the SHDN pin, which places the output in high-impedance state and reduces ICC to 1nA (typ). The SHDN logic thresholds scale with VCC (VIH = 0.65×VCC, VIL = 0.2×VCC), allowing 5V logic control of a 3V-powered device.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 20ns typical at 50mV overdrive - enables fast edge detection in timing-critical signal conditioning. |
| Supply Current | 225µA per comparator - supports ultra-low-power operation in battery-backed systems. |
| Shutdown Current | 1nA typical - allows near-zero power consumption during system sleep modes. |
| Input Common-Mode Range | –0.2V to (VCC – 1.2V) - permits direct sensing of signals referenced to ground or negative offsets. |
| Output Type | Rail-to-rail push-pull - drives CMOS/TTL loads directly without external pull-ups or level shifters. |
| Hysteresis | 0.5–4.0mV input-referred - ensures clean switching on slow or noisy input transitions. |
| Supply Voltage Range | +2.7V to +5.5V - compatible with Li-ion, 3.3V, and 5V logic domains. |
Pinout & Package
MAX998EUT+TG002 is housed in a 6-pin SOT23-6 package (outline 21-0058), RoHS-compliant, with thermal pad not electrically connected. Pin 1 is marked by a dot or beveled corner; top marking is "AAAO".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal circuitry and output stage return path. |
| 2 | IN− | Inverting input - accepts analog voltage for comparison against IN+. |
| 3 | IN+ | Noninverting input - primary signal input for standard comparator configuration. |
| 4 | OUT | Digital output - rail-to-rail push-pull, sinks/sourses ≥2mA, high-Z in shutdown. |
| 5 | VCC | Positive supply input - powers internal biasing, amplifier, and output stage. |
| 6 | SHDN | Active-low shutdown control - drives low to enter 1nA standby mode; must not float. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation down to 2.7V | Eliminates need for dual supplies in portable or industrial 3V systems. |
| 20ns propagation delay with 50mV overdrive | Supports >20MHz signal edge detection in digital receivers and timing circuits. |
| 1nA shutdown supply current | Extends battery life in intermittent-sensing applications such as IR remote receivers. |
| Rail-to-rail output without pull-up | Reduces BOM count and PCB area by removing external resistors for TTL/CMOS interfacing. |
| Ground-sensing input range (–0.2V) | Enables direct connection to sensors or transducers with negative swing or zero-referenced outputs. |
Applications
| IR Receiver Front-End | Battery Voltage Threshold Detection |
|---|---|
|
Use Scenario: Infrared photodiode signal conditioning where ambient light rejection and fast pulse response are required. IC Role / Device Role / Timing Role: Comparator acting as high-gain, low-latency signal discriminator converting photocurrent into clean digital pulses. Use Value: 20ns propagation delay ensures accurate decoding of 38kHz carrier bursts; 1nA shutdown enables duty-cycled operation for multi-year battery life. |
Use Scenario: Monitoring Li-ion cell voltage to trigger low-battery warning or system shutdown before deep discharge. IC Role / Device Role / Timing Role: Precision threshold detector comparing sensed battery voltage against a stable reference. Use Value: Ground-sensing input allows direct measurement of battery cathode voltage; rail-to-rail output interfaces directly with MCU GPIO or reset controller. |
| Digital Line Receiver | 3V Logic-Level Translator |
|
Use Scenario: Receiving degraded or attenuated digital signals from long cables or high-impedance sources in industrial I/O modules. IC Role / Device Role / Timing Role: High-speed signal restorer converting marginal analog waveforms into robust CMOS-compatible logic levels. Use Value: Internal hysteresis prevents chatter on slow edges; 225µA quiescent current enables always-on monitoring without excessive power draw. |
Use Scenario: Interfacing 3.3V microcontroller peripherals with legacy 5V logic or sensor outputs requiring level adaptation. IC Role / Device Role / Timing Role: Single-supply level shifter using comparator topology to translate between non-matching voltage domains. Use Value: Input common-mode range extending below ground allows safe handling of 5V signals while powered from 3.3V; no external bias network required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-power comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV7215M5X/NOPB | No shutdown pin; 45ns propagation delay; 55µA supply current; only 2.7V–5.5V supply. | Lacks low-power shutdown - unsuitable for battery-cycled systems requiring <1µA standby. | Select when lowest quiescent current is critical and shutdown is unnecessary. |
| TLV3501DBVR | 4.5ns propagation delay; 13.2mA supply current; no shutdown; 2.7V–5.5V supply. | Higher speed but 60× higher active current - trades power for timing performance. | Select when sub-5ns response is mandatory and power budget allows >10mA per channel. |
Compared with MAX998EUT+TG002, LMV7215M5X offers lower active current but forfeits shutdown capability and speed, while TLV3501DBVR delivers superior speed at significantly higher power cost - making MAX998EUT+TG002 the optimal balance for space-constrained, battery-aware designs needing both speed and ultra-low standby.
Availability
MAX998EUT+TG002 is available at Aetrix Electronics and suitable for IR receivers, battery voltage monitors, and 3V digital line receivers requiring stable component supply across automotive, industrial, and portable electronics programs.
Supply support for MAX998EUT+TG002 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 U.S.-based semiconductor company specializing in precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.
The MAX976/MAX978/MAX998 family was designed specifically for high-speed, low-power, single-supply comparator applications in space-constrained and battery-sensitive systems - emphasizing ground-sensing inputs, rail-to-rail outputs, and integrated hysteresis.
FAQ
What is the shutdown behavior of the MAX998EUT+TG002?
When the SHDN pin is driven low, the MAX998EUT+TG002 disables its internal amplifier and places the OUT pin in a high-impedance state, reducing supply current to 1nA (typical). The output remains floating - no internal pull-up/down - so external termination may be needed depending on downstream logic. Wake-up time from shutdown is 15µs (typ) at VCC = 5V.
Can the MAX998EUT+TG002 operate with input voltages below ground?
Yes - the MAX998EUT+TG002 supports an input common-mode voltage range down to –0.2V, enabling true ground-sensing operation. This allows direct interface with sensors or transducers whose outputs swing slightly negative relative to system ground, without requiring level-shifting circuitry or negative supply rails.
What is the maximum capacitive load the MAX998EUT+TG002 can drive while maintaining 20ns propagation delay?
The MAX998EUT+TG002 maintains ≤20ns propagation delay (typ) with up to 15pF capacitive load at VCC = 5V and 50mV overdrive. Delay increases to ~25ns at 100pF (per Typical Operating Characteristics Figure TOC06); for loads >30pF, consider adding a series resistor near the output to damp ringing without significantly degrading edge rate.
Does the MAX998EUT+TG002 require external hysteresis for reliable operation?
No - the MAX998EUT+TG002 includes internal hysteresis (0.5–4.0mV input-referred) sufficient for most noise-immune switching applications. External hysteresis is optional and only needed when wider hysteresis bands (>4mV) or precise trip-point control is required, implemented via positive feedback resistors as shown in Figure 2 of the datasheet.
Is the MAX998EUT+TG002 pin-compatible with other devices in the MAX976/MAX978/MAX998 family?
No - the MAX998EUT+TG002 uses a 6-pin SOT23-6 package with unique pinout (GND, IN−, IN+, OUT, VCC, SHDN), whereas MAX976 (dual) uses 8-pin µMAX/SO and MAX978 (quad) uses 16-pin QSOP. Pin functions are not interchangeable across the family; each variant has distinct pin mapping and package footprint.
MAX998EUT+TG002 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- -
- Number of Elements:
- -
- Output Type:
- -
- Voltage - Supply, Single/Dual (±):
- -
- :
- -
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- -
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- :
- -
MAX998EUT+TG002 FAQ
1.How can I place an order for MAX998EUT+TG002 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX998EUT+TG002 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 MAX998EUT+TG002 reliable?
The price and inventory of MAX998EUT+TG002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX998EUT+TG002 is usually 5 days.
3.What payment methods are accepted for MAX998EUT+TG002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX998EUT+TG002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX998EUT+TG002?
MAX998EUT+TG002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX998EUT+TG002 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 MAX998EUT+TG002?
For technical support, including MAX998EUT+TG002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX998EUT+TG002 requirements.
6.How does Aetrix verify that MAX998EUT+TG002 is sourced from the original manufacturer or authorized distributors?
All MAX998EUT+TG002 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 MAX998EUT+TG002 meets industry standards.
7.What is the process for return or replacement of MAX998EUT+TG002?
All MAX998EUT+TG002 units undergo pre-shipment inspection (PSI). If there is an issue with MAX998EUT+TG002, 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 MAX998EUT+TG002 part is unused and in its original packaging.
Return procedure for MAX998EUT+TG002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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