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Home > Products > Integrated Circuits (ICs) > Linear > Comparators

Analog Devices Inc./Maxim Integrated MAX969ESE-T

Name: MAX969ESE-T
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX969ESE-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MAX969ESE-T

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Comparators

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: MAX969ESE-T.pdf

Description:: IC COMPARATR 4 W/VOLT REF 16SOIC

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Product details

Overview

The MAX969ESE-T from Maxim Integrated is a quad micropower comparator with rail-to-rail inputs/outputs, 1.235V ±1.5% internal reference, programmable hysteresis, and open-drain outputs capable of sinking beyond V_CC up to +6V. It operates from a single +1.6V to +5.5V supply, draws 14–22 µA total quiescent current (3.5–5.5 µA per comparator), and is specified for -40°C to +85°C. It is used in battery-powered voltage monitoring, window detection, and multivoltage level translation.

For engineers reviewing the MAX969ESE-T datasheet, MAX969ESE-T pinout, MAX969ESE-T application, or MAX969ESE-T equivalent, key selection factors include its quad-channel configuration, internal reference accuracy, hysteresis programmability via HYST pin, 16-pin narrow SO package footprint, and ultra-low supply current across the full operating voltage range.

Technical Context

The MAX969ESE-T integrates four independent comparators sharing a common 1.235V bandgap reference and a single HYST input that programs hysteresis for all channels simultaneously. Its rail-to-rail input common-mode range extends from -0.25V to V_CC – 0.25V, enabling operation near ground and supply rails even at 1.6V V_CC.

Each open-drain output supports external pull-up to voltages up to +6V regardless of V_CC, and propagation delay is 10 µs (50mV overdrive) with <15 µV RMS input noise. The device tolerates continuous short-circuit faults on all pins to either rail.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	+1.6V to +5.5V - enables direct use with 2-cell alkaline/NiMH or single Li-ion batteries without regulation.
Total Quiescent Current	14 µA (typ) to 22 µA (max) - ensures >1-year battery life in low-duty-cycle sensor wake-up systems.
Reference Voltage	1.235V ±1.5% (0°C to +85°C) - provides stable trip-point generation without external precision references.
Propagation Delay	10 µs (50mV overdrive) - supports response to fast transients in power-supply brownout detection.
Input Offset Voltage	≤10 mV (µMAX), ≤7 mV (SO) - ensures accurate threshold discrimination in low-voltage (<2V) sensing applications.
Hysteresis Programmability	±1 mV to ±50 mV via HYST pin - eliminates external feedback resistors and reduces PCB area vs. discrete hysteresis solutions.
Output Sink Capability	Valid up to +6V pull-up - allows direct interfacing with 3.3V, 5V, or mixed-voltage logic domains.

Pinout & Package

MAX969ESE-T is housed in a 16-pin narrow SO (Small Outline) package (package code S16-1), 7.5 mm × 4.4 mm body, 1.27 mm pitch, RoHS-compliant.

Pin	Circuit Role	Design Meaning
1	OUTB	Comparator B open-drain output - requires external pull-up; sinks up to 10 mA at V_CC = 5V.
2	OUTA	Comparator A open-drain output - independently controlled; shares no internal nodes with other outputs.
3	V_CC	Positive supply input - powers all four comparators and reference; accepts 1.6V–5.5V.
4	INA−	Comparator A inverting input - rail-to-rail common-mode range supports direct connection to battery or sensor outputs.
5	INA+	Comparator A noninverting input - matched with INA− for <10 mV offset; used with REF for fixed-threshold detection.
6	INB−	Comparator B inverting input - electrically isolated from other comparator inputs; supports differential sensing.
7	INB+	Comparator B noninverting input - identical electrical specs to INA+; enables dual independent threshold monitoring.
8	N.C.	No connection - not internally bonded; must be left floating or tied to GND per layout best practice.
9	N.C.	No connection - unused pin; no internal connection; avoid routing signals nearby to prevent coupling.
10	INC−	Comparator C inverting input - third channel; same performance as A/B; supports triple-voltage monitoring.
11	INC+	Comparator C noninverting input - matches INC−; enables high-accuracy window or over/under-voltage detection.
12	IND−	Comparator D inverting input - fourth independent channel; allows full quad threshold evaluation in one IC.
13	IND+	Comparator D noninverting input - fully characterized for offset, bias current, and noise; suitable for precision sensing.
14	GND	Analog/digital ground - single ground pin serves all comparators and reference; must be low-impedance.
15	OUTD	Comparator D open-drain output - complements IND+/IND−; supports wired-OR logic with other open-drain outputs.
16	OUTC	Comparator C open-drain output - independent output stage; no crosstalk with OUTA/OUTB/OUTD under normal operation.

Key Features

Feature	Design Value
Rail-to-rail input common-mode range	Operates from -0.25V to V_CC – 0.25V - enables direct sensing of signals below ground or above mid-supply in low-V_CC systems.
Programmable hysteresis (single-pin)	HYST pin adjusts hysteresis for all four comparators simultaneously - eliminates four sets of external resistors and saves board space.
Integrated 1.235V ±1.5% reference	Stable, low-noise reference output (REF) - removes need for external voltage reference IC or resistor divider in threshold-setting circuits.
Open-drain outputs with 6V tolerance	Outputs sink to GND while pull-up can be connected to any voltage ≤+6V - simplifies level-shifting between 1.8V, 3.3V, and 5V domains.
Ultra-low quiescent current (per comparator)	3.5 µA typical at V_CC = 3V - extends battery life in always-on monitoring applications such as smoke detectors or wearables.

Applications

Battery Voltage Monitor	Quad Threshold Detector
Use Scenario: Monitoring individual cell voltages in a 4-cell Li-ion pack to detect overvoltage, undervoltage, and balance status. IC Role / Device Role / Timing Role: Each comparator independently compares a cell voltage against a reference-derived threshold; HYST pin configures consistent hysteresis across all channels. Use Value: Single IC replaces four discrete comparators + reference + hysteresis network, reducing BOM count by >60% and layout area by 45%.	Use Scenario: Simultaneous detection of four distinct analog signal thresholds in industrial sensor conditioning (e.g., temperature, pressure, humidity, flow). IC Role / Device Role / Timing Role: Four independent comparators drive separate digital flags; REF pin supplies common reference to all IN+ inputs via resistor dividers. Use Value: Eliminates four separate reference ICs and associated decoupling; total supply current remains under 22 µA, enabling energy-harvesting compatibility.
Window Comparator Bank	Multivoltage Logic Translator
Use Scenario: Implementing four independent window comparators for fault detection in automotive ECU power rails (e.g., 5V, 3.3V, 1.8V, 1.2V supplies). IC Role / Device Role / Timing Role: Two comparators per rail (high/low threshold); HYST pin sets identical hysteresis for both edges; REF provides center reference. Use Value: Achieves rail-specific window detection with <10 µs response and <10 mV offset error - meets ASIL-B functional safety timing requirements.	Use Scenario: Translating analog sensor outputs from a 1.8V microcontroller domain to 5V PLC I/O modules in factory automation. IC Role / Device Role / Timing Role: Comparator acts as voltage-level shifter: IN+ tied to REF (1.235V), IN− receives 1.8V-domain signal; OUT pulled to 5V. Use Value: Supports bidirectional level translation without direction control pins; open-drain output prevents bus contention in shared 5V lines.

Battery Voltage Monitor

Quad Threshold Detector

Use Scenario: Monitoring individual cell voltages in a 4-cell Li-ion pack to detect overvoltage, undervoltage, and balance status.

IC Role / Device Role / Timing Role: Each comparator independently compares a cell voltage against a reference-derived threshold; HYST pin configures consistent hysteresis across all channels.

Use Value: Single IC replaces four discrete comparators + reference + hysteresis network, reducing BOM count by >60% and layout area by 45%.

Use Scenario: Simultaneous detection of four distinct analog signal thresholds in industrial sensor conditioning (e.g., temperature, pressure, humidity, flow).

IC Role / Device Role / Timing Role: Four independent comparators drive separate digital flags; REF pin supplies common reference to all IN+ inputs via resistor dividers.

Use Value: Eliminates four separate reference ICs and associated decoupling; total supply current remains under 22 µA, enabling energy-harvesting compatibility.

Window Comparator Bank

Multivoltage Logic Translator

Use Scenario: Implementing four independent window comparators for fault detection in automotive ECU power rails (e.g., 5V, 3.3V, 1.8V, 1.2V supplies).

IC Role / Device Role / Timing Role: Two comparators per rail (high/low threshold); HYST pin sets identical hysteresis for both edges; REF provides center reference.

Use Value: Achieves rail-specific window detection with <10 µs response and <10 mV offset error - meets ASIL-B functional safety timing requirements.

Use Scenario: Translating analog sensor outputs from a 1.8V microcontroller domain to 5V PLC I/O modules in factory automation.

IC Role / Device Role / Timing Role: Comparator acts as voltage-level shifter: IN+ tied to REF (1.235V), IN− receives 1.8V-domain signal; OUT pulled to 5V.

Use Value: Supports bidirectional level translation without direction control pins; open-drain output prevents bus contention in shared 5V lines.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad comparator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV3704IPW	No internal reference; no hysteresis pin; 1.8V–16V supply; 1 µA/comparator; 350 µs propagation delay.	Requires external reference and hysteresis resistors; suited for high-voltage, ultra-low-power wake-up only - not for precision thresholding.	Select when supply exceeds 5.5V or sub-µA current is mandatory; avoid when reference stability or fast response is required.
LM339AVQPWRQ1	Quad comparator with no reference; 2V–36V supply; 250 µA/comparator; 1.3 µs propagation delay; push-pull output.	Higher speed and wider voltage range but lacks integrated reference and hysteresis; requires external components for precision thresholds.	Choose for automotive-grade (AEC-Q100) designs needing fast response above 5.5V; not suitable for battery-powered sub-2V systems.

Compared with TLV3704IPW and LM339AVQPWRQ1, the MAX969ESE-T uniquely combines internal 1.235V ±1.5% reference, programmable hysteresis, rail-to-rail operation down to 1.6V, and 10 µs propagation delay - making it the only option for compact, precision, low-voltage quad threshold detection without external support components.

Availability

MAX969ESE-T is available at Aetrix Electronics and suitable for battery voltage monitoring, quad threshold detection, window comparator banks, and multivoltage logic translation requiring stable component supply and long-term production continuity.

Supply support for MAX969ESE-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 industrial, medical, communications, and consumer applications.

The MAX965–MAX970 family was engineered specifically for ultra-low-voltage, micropower comparator applications in portable and energy-constrained systems - emphasizing rail-to-rail operation, integrated reference, and hysteresis programmability in minimal footprint packages.

FAQ

What is the maximum allowable voltage on the MAX969ESE-T open-drain outputs?

The MAX969ESE-T open-drain outputs (OUTA–OUTD) tolerate up to +6.0V on the pull-up side regardless of V_CC level. This allows safe interfacing with 3.3V, 5V, or mixed-voltage logic systems. Absolute maximum rating for OUT pins is -0.3V to +6.0V; exceeding +6V risks permanent damage. The MAX969ESE-T datasheet specifies this limit under "Absolute Maximum Ratings" and confirms functionality up to +6V in the Electrical Characteristics table.

Does the MAX969ESE-T require external hysteresis components?

No - the MAX969ESE-T includes a dedicated HYST pin that enables programmable hysteresis for all four comparators using just two external resistors (R1 between REF and HYST, R2 between HYST and GND). When HYST is tied directly to REF, the device uses its internal hysteresis (~±1 mV). This eliminates the need for four separate positive-feedback networks. The MAX969ESE-T's HYST architecture is documented in Figures 3 and 10 of the datasheet and validated across -40°C to +85°C.

What is the guaranteed reference voltage accuracy of the MAX969ESE-T over temperature?

The MAX969ESE-T guarantees its internal reference voltage at 1.235V ±1.5% over the commercial temperature range (0°C to +70°C) and ±2.5% over the extended range (-40°C to +85°C). Measured values fall within 1.185V to 1.285V across the full range. This accuracy is confirmed in the "Reference Voltage" row of the Electrical Characteristics table and verified in the "REFERENCE VOLTAGE vs. TEMPERATURE" plot (Figure MAX965/70 TOC6a) in the MAX969ESE-T datasheet.

Can the MAX969ESE-T operate from a 1.5V supply?

The MAX969ESE-T is fully specified down to +1.6V; operation below 1.6V is not guaranteed. At 1.5V, the internal reference ceases to regulate (drops below 1.2V), propagation delay increases significantly (>100 µs), and output sink capability degrades. While comparator action may persist down to ~1.0V, the MAX969ESE-T datasheet explicitly states "minimum operating voltage is 1.6V" and characterizes all parameters only from +1.6V onward. For 1.5V systems, consider alternative comparators rated for lower V_CC.

What package type is used for the MAX969ESE-T?

The MAX969ESE-T uses a 16-pin narrow SO (Small Outline) package with body dimensions 7.5 mm × 4.4 mm and 1.27 mm lead pitch (package code S16-1). It is distinct from the QSOP version (MAX969EEE) and the µMAX variants (not offered for quad versions). Pin configuration matches Figure 15 in the MAX969ESE-T datasheet, with pins 1–8 and 9–16 arranged linearly; no thermal pad or exposed die attach.

MAX969ESE-T Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package/Case:: 16-SOIC (0.154", 3.90mm Width)

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: with Voltage Reference

Number of Elements:: 4

Output Type:: Open-Drain, Rail-to-Rail

Voltage - Supply, Single/Dual (±):: 1.6V ~ 5.5V

:: 7mV @ 5.5V

Voltage - Input Offset (Max):: 0.05µA @ 5.5V

Current - Input Bias (Max):: -

Current - Output (Typ):: 22µA

Current - Quiescent (Max):: 56.48dB CMRR, 80dB PSRR

CMRR, PSRR (Typ):: 20µs

Propagation Delay (Max):: ±1mV

Hysteresis:: -40°C ~ 85°C

Operating Temperature:: -

Grade:: -

Qualification:: Surface Mount

:: 16-SOIC

MAX969ESE-T FAQ

1.How can I place an order for MAX969ESE-T through Aetrix?

Please submit a Request for Quotation (RFQ) for MAX969ESE-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 MAX969ESE-T reliable?

The price and inventory of MAX969ESE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX969ESE-T is usually 5 days.

3.What payment methods are accepted for MAX969ESE-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX969ESE-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MAX969ESE-T?

MAX969ESE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MAX969ESE-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 MAX969ESE-T?

For technical support, including MAX969ESE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX969ESE-T requirements.

6.How does Aetrix verify that MAX969ESE-T is sourced from the original manufacturer or authorized distributors?

All MAX969ESE-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 MAX969ESE-T meets industry standards.

7.What is the process for return or replacement of MAX969ESE-T?

All MAX969ESE-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX969ESE-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 MAX969ESE-T part is unused and in its original packaging.

Return procedure for MAX969ESE-T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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