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

Analog Devices Inc./Maxim Integrated MAX970EEE-T

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

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Part No.:: MAX970EEE-T

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Comparators

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

Datasheet:: MAX970EEE-T.pdf

Description:: IC COMPARATOR 4 GEN PUR 16QSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MAX970EEE-T from Maxim Integrated is a quad micropower comparator with rail-to-rail inputs/outputs, 1.6V to 5.5V single-supply operation, 11–18 µA total supply current (4.25–4.5 µA per comparator), open-drain outputs capable of sinking beyond VCC up to +6V, and no internal reference or programmable hysteresis. It targets ultra-low-power 2-cell battery systems requiring four independent threshold detection channels.

For engineers reviewing the MAX970EEE-T datasheet, MAX970EEE-T pinout, MAX970EEE-T application, or MAX970EEE-T equivalent, this page delivers verified electrical specs, QSOP-16 package mapping, real-world timing behavior (10 µs propagation delay at 50 mV overdrive), thermal derating data (5.70 mW/°C above +70°C), and two validated alternative parts for multi-comparator monitoring designs.

Technical Context

The MAX970EEE-T implements four independent high-impedance comparators with rail-to-rail input common-mode range (−0.25 V to V_CC − 0.25 V) and open-drain outputs compatible with pull-up voltages up to +6 V. Each comparator draws only 2.75–4.5 µA across −40°C to +85°C, enabling operation in sub-2V battery domains while maintaining functional output swing.

No internal voltage reference or hysteresis control circuitry is integrated - all four comparators rely on external references and optional external positive-feedback hysteresis networks. Input bias current is ±5 nA (typical), and input offset voltage is ≤15 mV over full temperature range, supporting precision threshold sensing in portable instrumentation.

Key Specifications

Parameter	Value and Actual Design Meaning
Comparator Count	4 independent channels - enables simultaneous monitoring of multiple system rails or sensor thresholds in one IC
Supply Voltage Range	+1.6 V to +5.5 V - supports direct connection to 2-cell alkaline/NiMH (2.4–3.2 V) or Li-ion (3.0–4.2 V) batteries
Supply Current (Total)	11–18 µA at −40°C to +85°C - ensures >1-year battery life in always-on wake-up detection circuits
Propagation Delay	10 µs at 50 mV overdrive - provides deterministic response for fast-acting fault detection (e.g., brownout, overvoltage)
Input Common-Mode Range	−0.25 V to V_CC − 0.25 V - allows direct sensing of signals near ground or near V_CC, critical for supply-rail monitoring
Output Type	Open-drain, rated to +6 V - enables level translation between disparate supply domains (e.g., 1.8 V logic sensing 5 V rail)
Input Offset Voltage	≤15 mV over −40°C to +85°C - sufficient for ±50 mV threshold accuracy in battery voltage monitors

Pinout & Package

MAX970EEE-T is housed in a 16-pin QSOP package (E16-1), 3.9 mm × 4.9 mm footprint, 1.0 mm height, RoHS-compliant, with 0.635 mm lead pitch. Thermal derating is 5.70 mW/°C above +70°C (457 mW max at +70°C).

Pin	Circuit Role	Design Meaning
1	OUTB	Open-drain output of Comparator B - requires external pull-up; sinks up to 10 mA (min) at V_CC = 2 V
2	OUTA	Open-drain output of Comparator A - shares same electrical specs as OUTB; supports wired-OR logic
3	V_CC	Positive supply input - accepts 1.6 V to 5.5 V; decoupling capacitor recommended at pin
4	INA−	Inverting input of Comparator A - high-impedance node (±5 nA bias); connects to threshold reference or sensor
5	INA+	Noninverting input of Comparator A - matches INA− in CMRR and offset performance
6	INB−	Inverting input of Comparator B - electrically identical to INA−; supports differential or single-ended sensing
7	INB+	Noninverting input of Comparator B - used with INB− to form second independent decision channel
8	N.C.	No internal connection - must be left unconnected; not tied to GND or V_CC
9	N.C.	No internal connection - floating; PCB pad should remain unconnected
10	INC−	Inverting input of Comparator C - third independent sensing channel; identical DC specs to INA−
11	INC+	Noninverting input of Comparator C - paired with INC− for third threshold comparison
12	IND−	Inverting input of Comparator D - fourth channel; supports redundant or multi-zone monitoring
13	IND+	Noninverting input of Comparator D - completes fourth independent comparator pair
14	GND	Analog ground reference - must be low-impedance path to system ground; separate from digital ground if possible
15	OUTD	Open-drain output of Comparator D - sinks current when IND− > IND+; compatible with 6 V pull-up
16	OUTC	Open-drain output of Comparator C - functionally identical to OUTA/OUTB/OUTD; supports parallel alarm aggregation

Key Features

Feature	Design Value
Rail-to-rail input common-mode range	Operates with inputs from −0.25 V to V_CC − 0.25 V - enables direct monitoring of battery voltage down to 0 V and up to V_CC − 250 mV
Ultra-low quiescent current	11–18 µA total (2.75–4.5 µA per comparator) - extends battery life in always-on wake-up and supervisory functions
Open-drain outputs with 6 V tolerance	Sinks current with pull-up to +6 V - eliminates level-shifter ICs when interfacing 1.8/3.3 V comparators to 5 V logic or displays
10 µs propagation delay at 50 mV overdrive	Deterministic response time - supports reliable detection of transient faults such as short-circuit events or rapid battery sag
−40°C to +85°C operating range	Specified performance across industrial temperature range - suitable for automotive cabin modules and outdoor IoT sensors

Applications

2-Cell Battery Voltage Monitor	Multi-Rail Power Sequencing Supervisor
Use Scenario: Monitoring individual cell voltages in series-connected 2-cell alkaline or NiMH battery packs to detect imbalance or end-of-life discharge. IC Role / Device Role / Timing Role: Four independent comparators each configured as a window detector using external resistive dividers and reference, triggering alarms at under-voltage (1.0 V/cell) and over-voltage (1.75 V/cell) thresholds. Use Value: Enables precise, low-power cell-level supervision without external reference ICs - reduces BOM count and PCB area versus discrete solutions.	Use Scenario: Ensuring correct power-up and power-down sequencing across four independent voltage rails (e.g., 1.2 V core, 1.8 V I/O, 3.3 V analog, 5 V interface) in FPGA or SoC-based systems. IC Role / Device Role / Timing Role: Each comparator independently verifies rail stability against fixed thresholds before asserting enable signals to downstream regulators or latches. Use Value: Prevents latch-up and configuration corruption by enforcing strict monotonic sequencing - eliminates need for dedicated sequencer ICs.
Quad Threshold Detector for Sensor Array	Low-Power Wake-Up Controller
Use Scenario: Interfacing four analog sensors (e.g., temperature, humidity, pressure, light) to a microcontroller, where each sensor output is compared against a unique trip point. IC Role / Device Role / Timing Role: Comparator A–D each receive a sensor signal on the noninverting input and a resistor-divider threshold on the inverting input, driving GPIO interrupts on crossing. Use Value: Offloads continuous ADC polling from MCU - reduces active current by >90% during idle periods while retaining responsive event detection.	Use Scenario: Enabling ultra-low-power sleep mode in portable medical devices, where wake-up must occur only upon detection of specific physiological thresholds (e.g., heart rate >120 bpm, SpO₂ <85%). IC Role / Device Role / Timing Role: One comparator monitors amplified sensor output; others validate auxiliary conditions (battery OK, motion absent) before asserting wake signal to MCU reset pin. Use Value: Achieves sub-20 µA system standby current - extends single-CR2032 battery life to >2 years in intermittent-use applications.

2-Cell Battery Voltage Monitor

Multi-Rail Power Sequencing Supervisor

Use Scenario: Monitoring individual cell voltages in series-connected 2-cell alkaline or NiMH battery packs to detect imbalance or end-of-life discharge.

IC Role / Device Role / Timing Role: Four independent comparators each configured as a window detector using external resistive dividers and reference, triggering alarms at under-voltage (1.0 V/cell) and over-voltage (1.75 V/cell) thresholds.

Use Value: Enables precise, low-power cell-level supervision without external reference ICs - reduces BOM count and PCB area versus discrete solutions.

Use Scenario: Ensuring correct power-up and power-down sequencing across four independent voltage rails (e.g., 1.2 V core, 1.8 V I/O, 3.3 V analog, 5 V interface) in FPGA or SoC-based systems.

IC Role / Device Role / Timing Role: Each comparator independently verifies rail stability against fixed thresholds before asserting enable signals to downstream regulators or latches.

Use Value: Prevents latch-up and configuration corruption by enforcing strict monotonic sequencing - eliminates need for dedicated sequencer ICs.

Quad Threshold Detector for Sensor Array

Low-Power Wake-Up Controller

Use Scenario: Interfacing four analog sensors (e.g., temperature, humidity, pressure, light) to a microcontroller, where each sensor output is compared against a unique trip point.

IC Role / Device Role / Timing Role: Comparator A–D each receive a sensor signal on the noninverting input and a resistor-divider threshold on the inverting input, driving GPIO interrupts on crossing.

Use Value: Offloads continuous ADC polling from MCU - reduces active current by >90% during idle periods while retaining responsive event detection.

Use Scenario: Enabling ultra-low-power sleep mode in portable medical devices, where wake-up must occur only upon detection of specific physiological thresholds (e.g., heart rate >120 bpm, SpO₂ <85%).

IC Role / Device Role / Timing Role: One comparator monitors amplified sensor output; others validate auxiliary conditions (battery OK, motion absent) before asserting wake signal to MCU reset pin.

Use Value: Achieves sub-20 µA system standby current - extends single-CR2032 battery life to >2 years in intermittent-use applications.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV3704IPW	Includes internal 1.24 V reference; 1.8 V min supply; 800 nA/comparator; no hysteresis pin	Better for single-supply 1.8 V systems needing integrated reference; higher speed (20 µs) but higher current than MAX970EEE-T	Select when reference integration and lower voltage operation outweigh need for lowest possible current
LM339MTX/NOPB	Quad comparator with 2 V min supply; 500 µA/comparator; push-pull output; no rail-to-rail input	Suitable for cost-sensitive industrial controls where 3.3/5 V supplies dominate and speed >1 µs is required	Select when board space is less constrained and higher supply current is acceptable for faster response

Compared with TLV3704IPW and LM339MTX/NOPB, the MAX970EEE-T delivers the lowest total quiescent current (11–18 µA) and widest input common-mode range (down to −0.25 V) for battery-powered quad monitoring, at the expense of lacking an internal reference and requiring external hysteresis design.

Availability

MAX970EEE-T is available at Aetrix Electronics and suitable for 2-cell battery monitoring, multi-rail power sequencing, sensor threshold detection, and low-power wake-up controller applications requiring stable component supply and guaranteed long-term availability.

Supply support for MAX970EEE-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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, computing, and consumer markets.

The MAX965–MAX970 family was designed specifically for ultra-low-power, rail-to-rail comparator applications in battery-constrained systems - emphasizing micropower operation (<5 µA/comparator), wide supply range (1.6–5.5 V), and robust input/output voltage tolerance.

FAQ

What is the maximum supply voltage rating for MAX970EEE-T?

The absolute maximum supply voltage for MAX970EEE-T is +6 V, but its specified operating range is +1.6 V to +5.5 V. Operation above +5.5 V risks parametric degradation or damage. The device's open-drain outputs tolerate up to +6 V on the pull-up side regardless of V_CC, enabling safe interfacing with higher-voltage logic domains while V_CC remains within 1.6–5.5 V.

Does MAX970EEE-T include an internal voltage reference?

No, MAX970EEE-T does not include an internal voltage reference. Unlike MAX965/MAX967/MAX968/MAX969, the MAX970 variant omits the REF and HYST pins entirely. All four comparators require externally supplied reference voltages - either from a precision bandgap IC, resistor divider off V_CC, or another source - to establish threshold levels.

Can MAX970EEE-T be used for hysteresis-based threshold detection?

Yes, MAX970EEE-T supports hysteresis via external positive-feedback resistor networks on each comparator input pair, as detailed in Figure 4 of the datasheet. Since it lacks a dedicated HYST pin, hysteresis must be implemented individually per channel using three resistors - trading off design complexity for flexibility in trip-point tuning and independence between channels.

What is the thermal derating specification for MAX970EEE-T in QSOP package?

MAX970EEE-T in the 16-pin QSOP package (E16-1) has a thermal derating factor of 5.70 mW/°C above +70°C. Its maximum continuous power dissipation is 457 mW at +70°C, decreasing linearly to ~343 mW at +85°C. This derating must be applied in PCB layout thermal analysis when ambient temperature exceeds +70°C or power dissipation approaches 100 µW per comparator.

How does the input common-mode voltage range of MAX970EEE-T compare to standard comparators?

MAX970EEE-T offers a rail-to-rail input common-mode range of −0.25 V to V_CC − 0.25 V, exceeding most standard comparators that limit inputs to within 1–2 V of supply rails. This allows direct sensing of signals at ground potential (e.g., current-sense shunt voltage) or near V_CC (e.g., battery top-cell voltage), eliminating level-shifting circuitry in battery-monitoring and supply-sensing applications.

MAX970EEE-T Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

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

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

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-T FAQ

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

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

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

3.What payment methods are accepted for MAX970EEE-T?

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

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MAX970EEE-T?

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

Once your MAX970EEE-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 MAX970EEE-T?

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

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

All MAX970EEE-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 MAX970EEE-T meets industry standards.

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

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

Return procedure for MAX970EEE-T:

1.Submit a request within 90 days.

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

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