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Analog Devices Inc./Maxim Integrated MAX969EEE+T
- Part No.:
- MAX969EEE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX969EEE+T.pdf
- Description:
- IC COMPARATR 4 W/VOLT REF 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:370
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Product details
Overview
The MAX969EEE+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 swinging up to 6V above ground. It operates from +1.6V to +5.5V single supply, draws 14–22 µA total supply current (3.5–5.5 µA per comparator), and targets ultra-low-power 2-cell battery systems requiring precise threshold detection.
For engineers reviewing the MAX969EEE+T datasheet, MAX969EEE+T pinout, MAX969EEE+T application, or MAX969EEE+T equivalent, this page delivers verified electrical parameters, QSOP-16 package mapping, functional pin roles, real-world use cases in voltage monitoring and level translation, and two validated alternative parts with documented technical and application differences.
Technical Context
The MAX969EEE+T integrates four independent comparators sharing a common HYST input for synchronized hysteresis programming and a single REF output delivering a precision 1.235V ±1.5% bandgap reference. Its rail-to-rail input common-mode range extends from –0.25V to VCC – 0.25V across –40°C to +85°C, enabling operation near ground and supply rails in low-voltage systems.
All four comparators feature open-drain outputs with <0.4V VOL at 500µA sink (VCC > 2.7V), 10µs propagation delay at 50mV overdrive, and input offset voltage ≤15mV over temperature. The HYST pin accepts 0.05V to VREF voltage, allowing hysteresis bands from ±1mV to ±50mV via external resistor networks referenced to REF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.6V to +5.5V - supports direct operation from 2-cell alkaline/NiMH or single Li-ion batteries without regulation. |
| Total Supply Current | 14 µA (min) to 22 µA (max) - enables multi-year battery life in always-on sensor monitors. |
| Reference Voltage | 1.235V ±1.5% (0°C to +85°C) - provides stable trip-point generation without external voltage sources. |
| Propagation Delay | 10 µs at 50mV overdrive - ensures timely response in battery voltage cutoff and window comparator applications. |
| Input Offset Voltage | ≤15 mV (–40°C to +85°C, µMAX/QSOP) - maintains accuracy in low-differential-signal detection like supply-rail sensing. |
| Output Sink Capability | ≥10 mA short-circuit sink current - drives standard logic-level pull-up resistors and small capacitive loads reliably. |
| Common-Mode Input Range | –0.25V to VCC – 0.25V - allows direct interfacing to sub-1V analog signals and ground-referenced sensors. |
Pinout & Package
MAX969EEE+T is housed in a 16-pin QSOP package (E16-1), 3.9mm × 4.9mm 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 for logic-high assertion; compatible with 1.8V–6V interface levels. |
| 2 | OUTA | Open-drain output of comparator A - shares same electrical behavior as OUTB; enables independent signal routing. |
| 3 | VCC | Positive supply input - accepts +1.6V to +5.5V; powers all four comparators and internal reference. |
| 4 | INA− | Inverting input of comparator A - forms differential pair with INA+; supports rail-to-rail common-mode voltage. |
| 5 | INA+ | Noninverting input of comparator A - used with INA− to detect rising/falling thresholds relative to REF or external references. |
| 6 | INB− | Inverting input of comparator B - identical function to INA−; enables dual-threshold or window-comparator configurations. |
| 7 | INB+ | Noninverting input of comparator B - pairs with INB−; supports independent voltage monitoring per channel. |
| 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 pad; no internal connection; avoid routing signals or vias to this pin. |
| 10 | INC− | Inverting input of comparator C - third independent comparator input pair for multi-zone monitoring. |
| 11 | INC+ | Noninverting input of comparator C - used with INC− to implement third threshold decision point. |
| 12 | IND− | Inverting input of comparator D - fourth independent input pair; enables full quad-threshold functionality. |
| 13 | IND+ | Noninverting input of comparator D - completes quad-channel input set; supports simultaneous multi-level detection. |
| 14 | GND | Analog/digital ground reference - primary return path for supply current and reference stability; requires low-impedance PCB connection. |
| 15 | OUTD | Open-drain output of comparator D - electrically identical to OUTA/OUTB/OUTC; supports discrete logic-level translation per channel. |
| 16 | OUTC | Open-drain output of comparator C - fourth independent output; enables parallel status signaling without bus contention. |
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 circuitry when interfacing with sub-1V sensors or ground-referenced signals. |
| Programmable hysteresis via HYST pin | Hysteresis band adjustable from ±1mV to ±50mV using two external resistors - prevents chatter in noisy environments without adding external components per comparator. |
| Integrated 1.235V ±1.5% reference | Stable, factory-trimmed bandgap reference with 50µA source capability - removes dependency on external voltage references and reduces BOM count in battery-powered systems. |
| Ultra-low quiescent current | 3.5–5.5 µA per comparator - enables continuous monitoring in energy-harvesting and coin-cell applications where average current must stay below 10 µA. |
| Open-drain outputs with 6V tolerance | Outputs safely interface to higher-voltage logic domains (e.g., 3.3V/5V microcontrollers) without level translators - simplifies inter-chip communication in mixed-supply systems. |
Applications
| 2-Cell Battery Voltage Monitor | Quad Threshold Detector |
|---|---|
|
Use Scenario: Monitoring individual cell voltages in series-connected 2-cell alkaline or NiMH packs to prevent deep discharge and enable low-battery warnings. IC Role / Device Role / Timing Role: Each comparator independently compares a divided cell voltage against the 1.235V reference to generate discrete low-voltage flags. Use Value: Enables accurate, low-power per-cell monitoring with only one precision reference and no external op-amps or ADCs. |
Use Scenario: Detecting four distinct voltage thresholds (e.g., 1.8V, 2.5V, 3.3V, 4.2V) in a portable medical device to trigger stage-specific alerts or power-state transitions. IC Role / Device Role / Timing Role: Four independent comparators each configured with unique resistor dividers to compare input against REF, generating parallel digital outputs. Use Value: Replaces four discrete comparator ICs and one external reference, reducing footprint by >60% and eliminating reference mismatch errors. |
| Window Comparator System | Ground-Sensing Voltage Translator |
|
Use Scenario: Validating that a 3.3V system supply remains within ±5% tolerance (3.135V–3.465V) using high-side and low-side comparators. IC Role / Device Role / Timing Role: Two comparators (A and B) form upper/lower bounds; HYST pin applies identical hysteresis to both to reject noise-induced false triggers. Use Value: Achieves tight window detection with matched hysteresis and shared reference - eliminates drift between separate reference ICs. |
Use Scenario: Converting a 0–1.5V analog sensor output (e.g., thermistor divider) into clean 0/3.3V logic levels for a microcontroller GPIO input. IC Role / Device Role / Timing Role: One comparator compares sensor voltage to REF; open-drain output pulled to 3.3V generates TTL-compatible logic swing. Use Value: Provides rail-to-rail input compatibility and 3.3V logic compatibility in a single 16-pin package - avoids level-shifter ICs and associated layout complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX969ESE | Same die, SO-16 package (S16-1); 1.5mm taller body; slightly higher thermal resistance (696mW derated above +70°C vs. 457mW for QSOP). | Preferred for through-hole prototyping or legacy board designs with SO-16 footprints; less suitable for space-constrained portable devices. | Select MAX969ESE only if SO-16 mechanical compatibility is required; otherwise MAX969EEE+T offers superior thermal performance and smaller footprint. |
| TLV3704IPW | Quad comparator with rail-to-rail I/O but no internal reference; 800nA per comparator supply current; 360µs propagation delay; 2.7–16V supply range. | Requires external reference and consumes ~20× more current - unsuitable for 2-cell battery operation but viable for higher-voltage industrial monitoring. | Choose TLV3704IPW only when operating above 2.7V with external reference availability and where ultra-low power is not critical. |
Compared with MAX969ESE and TLV3704IPW, the MAX969EEE+T uniquely combines integrated reference, programmable hysteresis, and sub-5µA-per-comparator current in a compact QSOP - making it the only option for space- and energy-constrained 1.6–5.5V battery systems requiring four independent, noise-immune thresholds.
Availability
MAX969EEE+T is available at Aetrix Electronics and suitable for 2-cell battery-powered systems, quad-threshold detectors, window comparators, and ground-sensing voltage translators requiring stable component supply and long-term production continuity.
Supply support for MAX969EEE+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, and consumer applications.
The MAX965–MAX970 family was designed specifically for ultra-low-power, single-supply, rail-to-rail comparator applications in battery-operated portable equipment - emphasizing micropower operation, internal reference integration, and robust noise immunity.
FAQ
What is the maximum supply voltage the MAX969EEE+T can tolerate?
The MAX969EEE+T has an absolute maximum supply voltage of +6V. However, its guaranteed operational range is +1.6V to +5.5V. Operating above +5.5V may cause parametric degradation or reliability issues, and the internal 1.235V reference is only specified within the +1.6V to +5.5V range. Always limit VCC to ≤5.5V for reliable performance of the MAX969EEE+T.
Does the MAX969EEE+T require external hysteresis components to function?
No - the MAX969EEE+T includes internal hysteresis and functions correctly with HYST pin tied directly to REF. External resistors are optional and only needed when programmable hysteresis beyond the default ±1mV is required. For basic threshold detection, connecting HYST to REF is sufficient and ensures stable operation of the MAX969EEE+T.
Can the MAX969EEE+T operate from a 1.5V supply?
The MAX969EEE+T is specified down to +1.6V; operation at 1.5V falls outside the guaranteed range. While the comparators may function intermittently at 1.5V, the internal reference degrades below 1.6V, propagation delay increases significantly, and output sink capability drops. For reliable design, maintain VCC ≥1.6V for all conditions affecting the MAX969EEE+T.
What is the purpose of the N.C. pins (8 and 9) on the MAX969EEE+T?
Pins 8 and 9 on the MAX969EEE+T are No Connection (N.C.) - they have no internal bond wire or circuit connection. These pins must remain unconnected on the PCB; do not tie them to GND, VCC, or any signal. Leaving them floating is acceptable, but grounding them is also safe and often preferred for mechanical stability in QSOP packages. Neither action affects MAX969EEE+T functionality.
How does the HYST pin affect all four comparators in the MAX969EEE+T?
The HYST pin on the MAX969EEE+T programs hysteresis simultaneously for all four comparators - it is a shared control input, not per-channel. When external resistors are connected to HYST, the resulting hysteresis band (±1mV to ±50mV) applies identically to comparator A, B, C, and D. This ensures consistent noise immunity across all thresholds without requiring four separate hysteresis networks in the MAX969EEE+T.
MAX969EEE+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:
- Active
- Type:
- with Voltage Reference
- 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):
- 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-QSOP
MAX969EEE+T FAQ
1.How can I place an order for MAX969EEE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX969EEE+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 MAX969EEE+T reliable?
The price and inventory of MAX969EEE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX969EEE+T is usually 5 days.
3.What payment methods are accepted for MAX969EEE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX969EEE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX969EEE+T?
MAX969EEE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX969EEE+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 MAX969EEE+T?
For technical support, including MAX969EEE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX969EEE+T requirements.
6.How does Aetrix verify that MAX969EEE+T is sourced from the original manufacturer or authorized distributors?
All MAX969EEE+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 MAX969EEE+T meets industry standards.
7.What is the process for return or replacement of MAX969EEE+T?
All MAX969EEE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX969EEE+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 MAX969EEE+T part is unused and in its original packaging.
Return procedure for MAX969EEE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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