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Analog Devices Inc./Maxim Integrated MAX932ESA-T
- Part No.:
- MAX932ESA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX932ESA-T.pdf
- Description:
- IC COMPARATOR 2 W/VOLT REF 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,503
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Product details
Overview
MAX932ESA-T from Maxim Integrated is a dual micropower comparator with integrated 1.182V ±2% bandgap reference, programmable hysteresis via HYST pin, TTL/CMOS-compatible outputs sourcing up to 40mA, and operation from +2.5V to +11V single supply (or ±1.25V to ±5.5V dual supply). It targets battery-powered threshold detection and window comparator circuits where ultra-low quiescent current (<4µA over temperature) and rail-to-rail input range (V− to V+ −1.3V) are critical.
For engineers reviewing the MAX932ESA-T datasheet, MAX932ESA-T pinout, MAX932ESA-T application, or MAX932ESA-T equivalent, key selection criteria include guaranteed hysteresis implementation without external feedback, output swing from V+ to V− (no GND pin), 12µs propagation delay at 10mV overdrive, and compatibility with 0°C to +70°C commercial temperature range in 8-pin µMAX package.
Technical Context
The MAX932ESA-T integrates two independent comparators sharing a single internal 1.182V reference and one HYST pin for simultaneous hysteresis programming on both channels. Its output stage eliminates crowbar current during transitions, preventing supply-line glitches and parasitic feedback-critical for stable operation in noisy or poorly decoupled layouts.
Input common-mode range extends from V− to V+ −1.3V, enabling direct sensing of signals near ground or high-side rails. The HYST pin accepts voltages from REF −50mV to REF, allowing precise hysteresis band control (up to 100mV) using two external resistors-no op-amp feedback required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +11V single supply; ±1.25V to ±5.5V dual supply - supports 3V/5V systems and bipolar signal monitoring |
| Quiescent Current | <4µA over temperature - enables multi-year battery life in always-on sensor nodes |
| Reference Voltage | 1.182V ±2% (0°C to +70°C) - stable, trimmed bandgap reference referenced to V−, not GND |
| Propagation Delay | 12µs at 10mV overdrive - predictable timing for low-speed threshold detection and oscillator circuits |
| Output Drive | Sources 40mA continuously; sinks >5mA - directly drives LEDs, logic inputs, or small relays without external buffers |
| Input Offset Voltage | ±10mV - sets minimum detectable differential voltage in precision threshold applications |
| Common-Mode Range | V− to V+ −1.3V - allows input signals to reach within 1.3V of positive rail, supporting wide dynamic range sensing |
Pinout & Package
MAX932ESA-T is housed in an 8-pin µMAX package (3mm × 3mm, 0.5mm pitch), thermally enhanced for space-constrained portable designs. Pinout is identical to industry-standard SO-8 but with smaller footprint and exposed pad for improved thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUTA | Comparator A output | Sinks and sources current; swings from V+ to V− - requires V− connection for proper output swing |
| 2 V− | Negative supply | Connect to ground for single-supply operation; defines reference point for REF and output swing |
| 3 INA+ | Noninverting input A | Accepts input from V− to V+ −1.3V - enables high-side or rail-referenced sensing |
| 4 INB− | Inverting input B | Shared with comparator B; same input range and leakage spec (±0.01nA at +25°C) |
| 5 INB+ | Noninverting input B | Independent channel input; supports dual-threshold or window detection with shared reference |
| 6 REF | Reference output | 1.182V ±2% w.r.t. V−; sources ≤15µA, sinks ≥8µA - do not bypass; powers HYST network |
| 7 V+ | Positive supply | Accepts +2.5V to +11V; supplies both comparators and reference - no separate analog/digital rails needed |
| 8 OUTB | Comparator B output | Functionally identical to OUTA; enables independent dual-channel decision logic |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | <4µA supply current over full temperature range - minimizes battery drain in IoT edge sensors |
| Integrated 2% accurate reference | 1.182V ±2% bandgap output referenced to V− - eliminates external reference IC and saves PCB area |
| Programmable hysteresis without feedback | HYST pin accepts REF −50mV to REF - enables precise noise immunity tuning with only two resistors |
| No crowbar output switching | Eliminates supply-line transients during state changes - improves system stability without heavy bypassing |
| TTL/CMOS-compatible outputs | Swings rail-to-rail (V+ to V−) with 40mA source capability - directly interfaces with logic families and LED loads |
Applications
| Battery-Powered Threshold Detector | Window Comparator for Power Monitoring |
|---|---|
|
Use Scenario: Detecting low-battery condition in handheld medical devices using a resistive divider off a Li-ion cell. IC Role / Device Role / Timing Role: Dual comparator compares divided battery voltage against upper/lower thresholds derived from internal REF and HYST network. Use Value: Eliminates need for external reference and hysteresis resistors per channel, reducing BOM count by 4 components and saving >2mm² PCB area. |
Use Scenario: Monitoring 5V system rail for undervoltage (4.5V) and overvoltage (5.5V) in industrial controllers. IC Role / Device Role / Timing Role: MAX932ESA-T's two comparators implement active-low UVLO and OVLO flags; ANDed output yields "power-good" signal. Use Value: Internal REF ensures consistent trip points across temperature; HYST pin simplifies hysteresis design to ±5mV at input, preventing chatter near thresholds. |
| Oscillator Circuit with Hysteresis | Auto-Shutoff Power Switch |
|
Use Scenario: Building a relaxation oscillator for LED blink timing in wearables using RC feedback. IC Role / Device Role / Timing Role: One comparator acts as Schmitt trigger; HYST pin sets hysteresis band, while REF provides stable threshold reference. Use Value: Propagation delay of 12µs and rail-to-rail output ensure predictable oscillation frequency; 4µA quiescent current extends timing capacitor life. |
Use Scenario: Enabling timed auto-power-off in portable test equipment after button press. IC Role / Device Role / Timing Role: Comparator monitors RC decay voltage; output drives MOSFET gate to cut main supply after timeout. Use Value: 40mA output source capability directly drives logic-level MOSFETs without buffer stages; <4µA quiescent current prevents battery depletion during standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator with reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX932CSA | Same functionality and pinout; SO-8 package instead of µMAX; rated for 0°C to +70°C | Preferred for through-hole prototyping or legacy SO-8 board reuse; slightly larger footprint (4.9mm × 6.0mm) | Select when µMAX assembly capability is unavailable or thermal dissipation requirements exceed µMAX limits. |
| MAX922ESA | Dual comparator with 1% reference (not 2%); otherwise identical pinout, supply, and output specs | Required where tighter reference accuracy (±1%) is mandated for high-precision thresholding | Choose only if ±1% reference tolerance is essential; note MAX922 is not pin-compatible with MAX932 per datasheet. |
Compared with MAX932CSA, the MAX932ESA-T offers identical electrical performance in a 3mm × 3mm µMAX package for space-constrained designs; compared with MAX922ESA, it trades ±1% reference accuracy for lower cost and broader availability, while retaining all other features including HYST pin functionality.
Availability
MAX932ESA-T is available at Aetrix Electronics and suitable for battery-powered systems, threshold detectors, and window comparators requiring stable component supply with guaranteed 0°C to +70°C operation and long-term production support.
Supply support for MAX932ESA-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 and mixed-signal ICs for power management, sensing, and interface applications in industrial, automotive, and consumer markets.
The MAX931–MAX934 family was engineered for ultra-low-power, cost-sensitive comparator applications requiring integrated reference and hysteresis-targeting portable instrumentation, energy harvesting nodes, and battery-backed monitoring systems.
FAQ
What is the operating temperature range for MAX932ESA-T?
The MAX932ESA-T is specified for the commercial temperature range of 0°C to +70°C. This is confirmed in the Ordering Information table, where the "-C" suffix denotes commercial grade, and the "ESA" package variant is explicitly listed with this range. The device is not rated for extended or industrial temperature operation.
Does MAX932ESA-T require an external reference or hysteresis circuitry?
No. The MAX932ESA-T integrates a 1.182V ±2% bandgap reference (pin 6, REF) and a dedicated HYST pin (pin 4) that enables programmable hysteresis for both comparators using just two external resistors. This eliminates the need for external reference ICs or op-amp-based positive feedback networks.
Can MAX932ESA-T operate from a single 3V supply?
Yes. The MAX932ESA-T supports single-supply operation from +2.5V to +11V. At 3V, its quiescent current remains below 3.0µA (per Electrical Characteristics table), input common-mode range extends from V− (GND) to V+ −1.3V (1.7V), and propagation delay increases to 14µs - fully functional for low-voltage portable applications.
What is the maximum continuous output source current of MAX932ESA-T?
The MAX932ESA-T provides continuous output source current of up to 40mA per channel, as stated in the Features section and verified in Typical Operating Characteristics. This is sufficient to drive LEDs, small solenoids, or logic inputs directly without external buffers, significantly simplifying circuit design.
Is MAX932ESA-T pin-compatible with any 1% reference comparators?
No. While the MAX933 and MAX934 are pin-compatible with MAX923 and MAX924 (1% reference variants), the MAX932 and MAX922 are explicitly stated as *not* pin-compatible in the datasheet. Therefore, MAX932ESA-T cannot be substituted with MAX922ESA without PCB layout changes.
MAX932ESA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- with Voltage Reference
- Number of Elements:
- 2
- Output Type:
- CMOS, TTL
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 11V, ±1.25V ~ 5.5V
- :
- 10mV @ 5V
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- 0.015mA @ 5V
- Current - Output (Typ):
- 6µA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 12µs
- Propagation Delay (Max):
- 50mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
MAX932ESA-T FAQ
1.How can I place an order for MAX932ESA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX932ESA-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 MAX932ESA-T reliable?
The price and inventory of MAX932ESA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX932ESA-T is usually 5 days.
3.What payment methods are accepted for MAX932ESA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX932ESA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX932ESA-T?
MAX932ESA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX932ESA-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 MAX932ESA-T?
For technical support, including MAX932ESA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX932ESA-T requirements.
6.How does Aetrix verify that MAX932ESA-T is sourced from the original manufacturer or authorized distributors?
All MAX932ESA-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 MAX932ESA-T meets industry standards.
7.What is the process for return or replacement of MAX932ESA-T?
All MAX932ESA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX932ESA-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 MAX932ESA-T part is unused and in its original packaging.
Return procedure for MAX932ESA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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