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

Analog Devices Inc./Maxim Integrated MAX970EEE+

Name: MAX970EEE+
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX970EEE+
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MAX970EEE+

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Comparators

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

Datasheet:: MAX970EEE+.pdf

Description:: IC COMPARATOR 4 GEN PUR 16QSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MAX970EEE+ from Maxim Integrated is a quad micropower comparator with rail-to-rail inputs/outputs, no internal reference, and no programmable hysteresis-designed for ultra-low-voltage single-supply operation from +1.6V to +5.5V. It draws 11–18 µA total supply current (2.75–4.5 µA per comparator), features open-drain outputs capable of sinking beyond VCC up to +6V, and operates across –40°C to +85°C in a 16-pin QSOP package. It enables voltage-level translation and threshold detection in space-constrained 2-cell battery systems.

For engineers reviewing the MAX970EEE+ datasheet, MAX970EEE+ pinout, MAX970EEE+ application, or MAX970EEE+ equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, confirmed alternative options, and supply-chain support details specific to the MAX970EEE+-not generic comparators or family-level abstractions.

Technical Context

The MAX970EEE+ implements four independent comparators with rail-to-rail input common-mode range (–0.25V to VCC – 0.25V) and open-drain outputs requiring external pull-up. Its input stage supports operation down to 1.6V supply while maintaining functional output swing, and its output sink capability degrades only below 1.6V-not at nominal operating voltages.

No internal reference or HYST pin is present, distinguishing it from MAX965/MAX967/MAX968/MAX969. Hysteresis must be added externally using positive feedback; propagation delay is 10 µs (50mV overdrive) and input offset voltage is ≤10 mV (µMAX) or ≤15 mV (–40°C to +85°C, QSOP).

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	+1.6V to +5.5V - enables direct use with 2-cell alkaline/NiMH (2.4–3.2V) or Li-ion (3.0–4.2V) batteries without regulation.
Total Supply Current	11–18 µA - ensures >1-year battery life in always-on portable sensors drawing <1 µA average system current.
Propagation Delay	10 µs @ 50mV overdrive - supports reliable detection of slow-moving thresholds (e.g., battery voltage sag during load pulses).
Input Offset Voltage	≤15 mV (–40°C to +85°C, QSOP) - sets minimum detectable voltage difference without calibration in threshold monitoring.
Output Sink Capability	Valid to +6V on OUT pins - allows level-shifting to higher-voltage logic domains (e.g., 5V MCU I/O) using a single pull-up resistor.
Common-Mode Input Range	–0.25V to VCC – 0.25V - permits direct sensing of signals referenced to ground or supply rails in unregulated systems.

Pinout & Package

MAX970EEE+ is housed in a 16-pin QSOP (E16-1) package, 3.9mm × 9.9mm body, 1.0mm max height, 0.635mm pitch. Pin 1 is top-left corner (dot-marked), pin count proceeds counter-clockwise.

Pin/Terminal	Circuit Role	Design Meaning
1	OUTB	Open-drain output of comparator B - requires external pull-up; sinks to GND when INB– > INB+.
2	OUTA	Open-drain output of comparator A - shares same electrical behavior as OUTB; enables wired-OR logic.
3	VCC	Positive supply input - accepts +1.6V to +5.5V; powers all four comparators and internal bias circuitry.
4	INA–	Inverting input of comparator A - differential pair node; accepts voltages from –0.25V to VCC – 0.25V.
5	INA+	Noninverting input of comparator A - matched to INA–; defines trip point when used with resistor dividers.
6	INB–	Inverting input of comparator B - electrically identical to INA–; supports independent dual-threshold sensing.
7	INB+	Noninverting input of comparator B - paired with INB–; enables separate voltage window or sequencing logic.
8	N.C.	No internal connection - must be left floating or tied to GND/VCC per layout best practice; not bonded.
9	N.C.	No internal connection - identical status to pin 8; no routing or loading required.
10	INC–	Inverting input of comparator C - third independent channel; supports triple-threshold or multi-stage detection.
11	INC+	Noninverting input of comparator C - matches INC–; maintains rail-to-rail CMVR and low input bias (<5 nA).
12	IND–	Inverting input of comparator D - fourth channel; enables full quad-threshold monitoring in compact footprint.
13	IND+	Noninverting input of comparator D - completes quad set; allows simultaneous evaluation of four analog conditions.
14	GND	Analog/digital ground reference - return path for all comparator inputs, outputs, and supply current.
15	OUTD	Open-drain output of comparator D - sinks when IND– > IND+; compatible with 3.3V/5V logic families via pull-up.
16	OUTC	Open-drain output of comparator C - functionally identical to OUTD; supports parallel or cascaded decision logic.

Key Features

Feature	Design Value
Rail-to-rail input common-mode range	Operates with inputs from –0.25V to VCC – 0.25V - eliminates need for level-shifting op-amps in battery-monitoring circuits.
Ultra-low quiescent current	11–18 µA total - reduces standby power in IoT endpoints where sleep-mode current dominates battery budget.
Open-drain outputs with 6V tolerance	Sinks beyond VCC up to +6V - enables direct interfacing to legacy 5V logic without level translators or discrete FETs.
Quad comparator integration	Four independent channels in one 16-pin QSOP - replaces four discrete comparators, saving >60% PCB area vs. SO-8 solutions.
Specified operation down to +1.6V	Guaranteed functionality at 1.6V supply - supports brown-out detection and wake-up triggering before battery cutoff.

Applications

2-Cell Battery Monitoring	Multi-Threshold Voltage Detection
Use Scenario: Real-time tracking of 2-cell alkaline/NiMH battery voltage (2.0–3.2V) to trigger low-battery alerts and graceful shutdown. IC Role / Device Role / Timing Role: Quad comparator compares battery voltage against four preset thresholds (e.g., 3.0V, 2.8V, 2.6V, 2.4V) using resistor dividers. Use Value: Enables precise state-of-charge estimation and staged power management without MCU ADC overhead or polling.	Use Scenario: Detecting multiple voltage conditions in industrial sensor nodes-e.g., supply OK, overvoltage, undervoltage, and reference drift. IC Role / Device Role / Timing Role: Each comparator independently monitors a distinct analog signal (V_SUPPLY, V_REF, V_SENSOR, V_TEMP) against fixed references. Use Value: Reduces BOM count by consolidating four discrete comparators into one device, cutting assembly cost and test time.
Voltage-Level Translation	Window Comparator for Sensor Signal Conditioning
Use Scenario: Converting 1.8V/2.5V sensor output signals to 3.3V/5V logic levels for MCU input in mixed-voltage embedded systems. IC Role / Device Role / Timing Role: Comparator acts as a level-shifter: low-voltage input drives IN+, VCC = 3.3V/5V, pull-up on OUT to target logic rail. Use Value: Eliminates need for dedicated level-shifter ICs or discrete transistor circuits-reducing component count and layout complexity.	Use Scenario: Validating that analog sensor output (e.g., thermistor, pressure transducer) remains within safe operational bounds. IC Role / Device Role / Timing Role: Two comparators form high/low limits; third detects in-window condition; fourth provides fault latching or enable control. Use Value: Provides hardware-enforced safety envelope without software intervention-critical for fail-safe industrial controls.

2-Cell Battery Monitoring

Multi-Threshold Voltage Detection

Use Scenario: Real-time tracking of 2-cell alkaline/NiMH battery voltage (2.0–3.2V) to trigger low-battery alerts and graceful shutdown.

IC Role / Device Role / Timing Role: Quad comparator compares battery voltage against four preset thresholds (e.g., 3.0V, 2.8V, 2.6V, 2.4V) using resistor dividers.

Use Value: Enables precise state-of-charge estimation and staged power management without MCU ADC overhead or polling.

Use Scenario: Detecting multiple voltage conditions in industrial sensor nodes-e.g., supply OK, overvoltage, undervoltage, and reference drift.

IC Role / Device Role / Timing Role: Each comparator independently monitors a distinct analog signal (V_SUPPLY, V_REF, V_SENSOR, V_TEMP) against fixed references.

Use Value: Reduces BOM count by consolidating four discrete comparators into one device, cutting assembly cost and test time.

Voltage-Level Translation

Window Comparator for Sensor Signal Conditioning

Use Scenario: Converting 1.8V/2.5V sensor output signals to 3.3V/5V logic levels for MCU input in mixed-voltage embedded systems.

IC Role / Device Role / Timing Role: Comparator acts as a level-shifter: low-voltage input drives IN+, VCC = 3.3V/5V, pull-up on OUT to target logic rail.

Use Value: Eliminates need for dedicated level-shifter ICs or discrete transistor circuits-reducing component count and layout complexity.

Use Scenario: Validating that analog sensor output (e.g., thermistor, pressure transducer) remains within safe operational bounds.

IC Role / Device Role / Timing Role: Two comparators form high/low limits; third detects in-window condition; fourth provides fault latching or enable control.

Use Value: Provides hardware-enforced safety envelope without software intervention-critical for fail-safe industrial controls.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX969EEE	Includes internal 1.235V ±1.5% reference and HYST pin for programmable hysteresis; 16-pin QSOP same footprint.	Eliminates external reference and hysteresis resistors; suited for designs needing precision thresholding without external components.	Select MAX969EEE when reference accuracy and hysteresis programmability justify added cost and complexity.
LM339DR	Quad comparator with push-pull outputs, no rail-to-rail inputs, 2–36V supply range, ~500 µA supply current.	Requires external hysteresis and level-shifting for low-voltage operation; better suited for 5V/12V industrial systems than battery-powered devices.	Select LM339DR only if supply >3.0V and µA-level current is not critical; avoid for sub-2V battery monitoring.

Compared with MAX970EEE+, MAX969EEE+ adds reference and hysteresis capability at slightly higher supply current (14–22 µA), while LM339DR trades ultra-low power for wider supply range and higher drive strength-making MAX970EEE+ optimal for space- and energy-constrained 2-cell applications where external hysteresis is acceptable.

Availability

MAX970EEE+ is available at Aetrix Electronics and suitable for 2-cell battery monitoring, multi-threshold voltage detection, and voltage-level translation requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.

Supply support for MAX970EEE+ 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 and mixed-signal ICs for power, sensing, interface, and timing applications in industrial, medical, and portable systems.

The MAX965–MAX970 family targets ultra-low-power, rail-to-rail comparator applications in battery-operated equipment-emphasizing micropower consumption, wide supply range, and robust input/output voltage handling.

FAQ

What is the supply voltage range supported by the MAX970EEE+?

The MAX970EEE+ operates from +1.6V to +5.5V on a single supply. This range supports direct connection to 2-cell alkaline (2.4–3.2V), NiMH (2.0–2.8V), or Li-ion (3.0–4.2V) batteries without regulation. Operation below 1.6V is possible but degrades output sink capability and increases propagation delay; the device is not specified or guaranteed below 1.6V.

Does the MAX970EEE+ include an internal voltage reference?

No, the MAX970EEE+ does not include an internal voltage reference. Unlike MAX965/MAX967/MAX968/MAX969, it lacks both the REF and HYST pins. External reference sources (e.g., TLV431, MAX6012) or resistor-divider networks must be used to establish threshold voltages for each comparator input.

How many comparators does the MAX970EEE+ integrate, and what are their output types?

The MAX970EEE+ integrates four independent comparators (A, B, C, D), each with an open-drain output. Pins OUTA, OUTB, OUTC, and OUTD require external pull-up resistors to define high-state voltage levels. These outputs can sink current up to +6V relative to GND, enabling level translation across different logic families.

What package type and pin count does the MAX970EEE+ use?

The MAX970EEE+ uses a 16-pin QSOP (E16-1) package measuring 3.9mm × 9.9mm with 0.635mm pitch. It has two no-connect (N.C.) pins (pins 8 and 9), and pin 1 is marked with a dot in the top-left corner. This package is RoHS-compliant and compatible with standard surface-mount reflow processes.

Can the MAX970EEE+ be used for hysteresis-based threshold detection?

Yes, but hysteresis must be implemented externally using positive feedback resistors-as the MAX970EEE+ lacks a HYST pin or internal hysteresis. Standard three-resistor configurations (e.g., R1, R2, R3 network between OUT, IN+, and reference) provide adjustable hysteresis bands; design guidance is provided in the MAX965–MAX970 datasheet Figure 4.

MAX970EEE+ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

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

Series:: -

Packaging:: Tube

Product Status:: Active

Type:: General Purpose

Number of Elements:: 4

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

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

:: 10mV @ 5.5V

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

Current - Input Bias (Max):: -

Current - Output (Typ):: 18µA

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-QSOP

MAX970EEE+ FAQ

1.How can I place an order for MAX970EEE+ through Aetrix?

Please submit a Request for Quotation (RFQ) for MAX970EEE+ 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 MAX970EEE+ reliable?

The price and inventory of MAX970EEE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX970EEE+ is usually 5 days.

3.What payment methods are accepted for MAX970EEE+?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX970EEE+ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MAX970EEE+?

MAX970EEE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MAX970EEE+ 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 MAX970EEE+?

For technical support, including MAX970EEE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX970EEE+ requirements.

6.How does Aetrix verify that MAX970EEE+ is sourced from the original manufacturer or authorized distributors?

All MAX970EEE+ 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 MAX970EEE+ meets industry standards.

7.What is the process for return or replacement of MAX970EEE+?

All MAX970EEE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX970EEE+, 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 MAX970EEE+ part is unused and in its original packaging.

Return procedure for MAX970EEE+:

1.Submit a request within 90 days.

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

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