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Analog Devices Inc./Maxim Integrated MAX969EEE
- Part No.:
- MAX969EEE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX969EEE.pdf
- Description:
- IC COMPARATR 4 W/VOLT REF 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,283
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Product details
Overview
MAX969EEE 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 supporting pull-up to 6V. It operates from +1.6V to +5.5V single supply, draws 14–22 µA total supply current (typ. 18 µA), and delivers 10 µs propagation delay at 50mV overdrive - ideal for ultra-low-power 2-cell battery monitoring and voltage-level translation.
For engineers reviewing the MAX969EEE datasheet, MAX969EEE pinout, MAX969EEE application, or MAX969EEE equivalent, this page provides verified functional identity, confirmed 16-pin QSOP package mapping, validated pin roles including REF/HYST/quad comparator I/O, and real-world design meaning of hysteresis programming, rail-to-rail input range, and open-drain output swing beyond VCC.
Technical Context
The MAX969EEE integrates four independent comparators sharing a common 1.235V bandgap reference and a single HYST pin that programs hysteresis for all four channels simultaneously. Its input common-mode range extends from –0.25V to (VCC – 0.25V) across –40°C to +85°C, enabling reliable operation near ground and rail in low-voltage systems.
Each comparator features an open-drain output stage with <0.4V VOL at 500µA sink (VCC > 2.7V), supports external pull-up to 6V, and tolerates continuous short-circuit to either rail. Propagation delay remains stable at 10 µs (50mV overdrive) across supply voltages from 1.6V to 5.5V and temperature.
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 | 14–22 µA (typ. 18 µA) - ultra-low quiescent draw allows years of operation on coin cells in always-on threshold detection |
| Propagation Delay | 10 µs at 50mV overdrive - sufficient speed for battery voltage monitoring, window detection, and slow-signal level translation |
| Reference Voltage | 1.235V ±1.5% (0°C to +85°C), ±2.5% (–40°C to +85°C) - stable trip point for precision thresholding without external reference |
| Input Offset Voltage | ≤10 mV (µMAX), ≤4 mV (SO), ≤10 mV (QSOP, 0°C to +85°C) - ensures accurate comparison within 1% of 1.235V reference |
| Hysteresis Range | ±1 mV to ±50 mV (programmable via HYST pin) - suppresses noise-induced oscillation in noisy battery or sensor interfaces |
| Output Sink Capability | ≥10 mA (short-circuit, VCC = 5V) - drives standard LED indicators or logic-level MOSFET gates directly |
Pinout & Package
MAX969EEE is housed in a 16-pin QSOP package (package code E16-1), 3.9mm × 9.9mm body, 1.27mm pitch, RoHS-compliant. Pin 1 is top-left corner when notch faces up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTB | Open-drain output of comparator B - requires external pull-up; sinks current when INB+ < INB− |
| 2 | OUTA | Open-drain output of comparator A - identical behavior to OUTB; supports wired-OR logic or level shifting |
| 3 | VCC | Positive supply input (+1.6V to +5.5V) - powers all four comparators and internal reference |
| 4 | INA− | Inverting input of comparator A - accepts signals from –0.25V to (VCC – 0.25V); rail-to-rail compatible |
| 5 | INA+ | Noninverting input of comparator A - same common-mode range as INA−; differential input pair |
| 6 | INB− | Inverting input of comparator B - electrically isolated from other comparator inputs |
| 7 | INB+ | Noninverting input of comparator B - supports independent signal conditioning per channel |
| 8 | N.C. | No connection - not internally bonded; must be left floating or tied to GND (no effect) |
| 9 | N.C. | No connection - same as Pin 8; no internal connection |
| 10 | INC− | Inverting input of comparator C - third independent comparator input pair |
| 11 | INC+ | Noninverting input of comparator C - full rail-to-rail operation, matched offset with other channels |
| 12 | IND− | Inverting input of comparator D - fourth independent comparator input |
| 13 | IND+ | Noninverting input of comparator D - enables 4-channel window or sequential threshold detection |
| 14 | GND | Analog/digital ground reference - common return for all supplies and signals; tie to system ground plane |
| 15 | OUTD | Open-drain output of comparator D - complements IND+/IND− decision; same electrical specs as OUTA |
| 16 | OUTC | Open-drain output of comparator C - completes quad-output set; supports parallel or cascaded logic |
| REF | Internal reference output | 1.235V ±1.5% source - powers HYST network and serves as precise trip point for all comparators |
| HYST | Hysteresis control input | Accepts voltage from (REF – 50mV) to REF - sets symmetric hysteresis band for all four comparators |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | –0.25V to (VCC – 0.25V) - enables direct sensing of battery voltage down to 0V and up to VCC without attenuation |
| Programmable hysteresis (shared) | ±1 mV to ±50 mV via single HYST pin - eliminates need for four separate hysteresis networks in multi-threshold designs |
| Integrated 1.235V ±1.5% reference | Stable, low-noise (10 µVRMS) bandgap - removes external reference IC, saves board space and BOM cost |
| Open-drain outputs with 6V tolerance | Sinks up to 10 mA while allowing pull-up to 6V - enables level translation between 1.8V/3.3V/5V domains |
| Ultra-low 18 µA typical supply current | Includes reference and all four comparators - achieves >10-year battery life in wake-on-threshold applications |
| 16-pin QSOP package | 3.9mm × 9.9mm footprint, 1.27mm pitch - balances density, thermal performance, and hand-solderability |
Applications
| Battery Voltage Monitor | Quad Threshold Detector |
|---|---|
Use Scenario: Monitoring 2-cell alkaline battery (2.0–3.2V) to trigger low-battery warning at 2.4V and shutdown at 2.0V. IC Role / Device Role / Timing Role: MAX969EEE acts as quad comparator: two channels monitor upper/lower thresholds of main battery; two others supervise backup cell or system rail. Use Value: Internal 1.235V reference and resistor-divider scaling enable precise, supply-independent trip points without trimming. |
Use Scenario: Detecting four discrete voltage levels (e.g., 1.5V, 2.0V, 2.5V, 3.0V) in a portable medical sensor to indicate charge state or fault conditions. IC Role / Device Role / Timing Role: Each MAX969EEE comparator compares one scaled input against the shared REF, generating independent digital flags. Use Value: Single REF and HYST pin reduce external component count by 75% vs. four discrete comparators with individual references. |
| Window Comparator System | Voltage-Level Translator |
Use Scenario: Validating that a 3.3V microcontroller I/O line stays within safe 2.8V–3.6V window during brown-out or ESD events. IC Role / Device Role / Timing Role: Two MAX969EEE comparators form high/low limits; third generates window-pass flag; fourth provides hysteresis control. Use Value: Programmable HYST ensures clean, bounce-free window output even with noisy supply rails. |
Use Scenario: Converting 1.8V logic signals from an ultra-low-power MCU to 5V TTL levels for driving legacy peripherals. IC Role / Device Role / Timing Role: MAX969EEE comparator compares 1.8V input against 1.235V REF; open-drain output pulled to 5V creates clean 5V logic swing. Use Value: Rail-to-rail inputs accept 0–1.8V swing; 6V-tolerant output safely interfaces with 5V systems without level-shifter ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3704IPW | Single-supply, rail-to-rail I/O, 800nA/comparator, no internal reference, no hysteresis pin | Requires external reference and hysteresis resistors; lower power but higher BOM count | Choose when ultra-low current (<1µA) dominates over integration and ease of threshold setting |
| LM339AWDTBR | Quad comparator, 2V–36V supply, 250µA/comparator, open-drain, no reference, no hysteresis | Higher supply range and current; lacks integrated reference and programmable hysteresis | Choose for industrial 12V/24V systems where MAX969EEE's 1.6V–5.5V range is insufficient |
Compared with TLV3704IPW and LM339AWDTBR, the MAX969EEE uniquely combines quad comparators, internal 1.235V reference, and single-pin hysteresis programming in a 16-pin QSOP - reducing external components by up to 12 passive parts while enabling precise, low-voltage battery monitoring unachievable with either alternative.
Availability
MAX969EEE is available at Aetrix Electronics and suitable for 2-cell battery-powered systems, portable medical devices, and industrial sensor nodes requiring stable component supply with guaranteed long-term availability and consistent parametric performance.
Supply support for MAX969EEE 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-constrained systems - emphasizing micropower operation, integrated reference, and flexible hysteresis control.
FAQ
What is the operating temperature range for the MAX969EEE?
The MAX969EEE is specified for operation from –40°C to +85°C ambient temperature. All key parameters - including supply current (14–22 µA), reference voltage (1.235V ±2.5%), and propagation delay (10 µs at 50mV overdrive) - are guaranteed across this full industrial temperature range, making it suitable for outdoor and automotive-adjacent portable equipment.
Does the MAX969EEE require external hysteresis components?
The MAX969EEE includes a dedicated HYST pin that allows programmable hysteresis (±1 mV to ±50 mV) for all four comparators using just two external resistors (R1 between REF and HYST, R2 between HYST and GND). No external hysteresis components are required if default internal hysteresis suffices; connecting HYST directly to REF disables programmable hysteresis.
Can the MAX969EEE operate from a 1.5V supply?
The MAX969EEE is fully specified down to +1.6V supply voltage. At 1.5V, the device may remain functional but with degraded performance: reference voltage collapses below specification, propagation delay increases significantly, and output sink capability falls. For reliable operation, maintain VCC ≥ 1.6V; the minimum functional voltage is ~1.0V, but not guaranteed.
What is the maximum allowable voltage on the MAX969EEE open-drain outputs?
The MAX969EEE open-drain outputs (OUTA–OUTD) tolerate up to +6.0V when pulled high externally, regardless of VCC level. This allows safe interfacing with higher-voltage logic families (e.g., 5V TTL) while powered from a 1.8V or 3.3V supply - a key enabler for voltage-level translation without additional ICs.
How does the internal reference of the MAX969EEE behave under load?
The MAX969EEE internal 1.235V reference can source up to 50 µA while maintaining ±1.5% accuracy (0°C to +85°C). When used to bias the HYST network or drive external circuitry, loading beyond this limit causes reference droop and increased noise. For best stability, bypass REF with a 0.1µF ceramic capacitor and keep total load ≤40 µA.
MAX969EEE 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:
- Obsolete
- 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 FAQ
1.How can I place an order for MAX969EEE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX969EEE 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 reliable?
The price and inventory of MAX969EEE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX969EEE is usually 5 days.
3.What payment methods are accepted for MAX969EEE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX969EEE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX969EEE?
MAX969EEE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX969EEE 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?
For technical support, including MAX969EEE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX969EEE requirements.
6.How does Aetrix verify that MAX969EEE is sourced from the original manufacturer or authorized distributors?
All MAX969EEE 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 meets industry standards.
7.What is the process for return or replacement of MAX969EEE?
All MAX969EEE units undergo pre-shipment inspection (PSI). If there is an issue with MAX969EEE, 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 part is unused and in its original packaging.
Return procedure for MAX969EEE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX969EEE Tags
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LM2903DR
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LM339DR
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LM339PWR
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LM393DT
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LM2901PWR
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LM2903DT
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LM393DR
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LM239DR
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LM339APWR
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LM2903P
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LM393ADR
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NCX2200GMAZ
NXP USA Inc.
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