My Inquiry
My Account
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:4,905
Please send an inquiry. Send us your inquiry, and we will respond immediately.
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. It targets battery-powered threshold detection and window comparator circuits where ultra-low quiescent current (<4µA at +25°C) 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 factors include its dual-comparator architecture with shared reference, HYST-pin hysteresis implementation without external feedback, guaranteed −40°C to +85°C temperature range, and µMAX-8 package compatibility with space-constrained portable systems.
Technical Context
The MAX932ESA+T integrates two independent comparators sharing a single internal 1.182V reference and one HYST pin for simultaneous hysteresis programming across both channels. Its output stage eliminates crowbar current during transitions, suppressing supply-line parasitic feedback and enabling stable operation without stringent PCB layout constraints.
Input common-mode range extends from V− to V+ −1.3V, supporting single-supply operation down to +2.5V while maintaining valid comparison near the positive rail. The HYST pin accepts voltages from REF −50mV to REF, enabling precise hysteresis bands up to 100mV using only two external resistors - a feature absent in the quad MAX934 and single MAX931 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +11V single supply; enables direct use with 3V/5V logic rails and battery inputs without regulation |
| Quiescent Current | <4µA max over −40°C to +85°C; ensures multi-year battery life in always-on monitoring applications |
| Reference Accuracy | 1.182V ±2% (0°C to +70°C); provides stable trip-point reference without external precision voltage source |
| Propagation Delay | 12µs typical at 10mV overdrive; supports medium-speed threshold detection in power management and alarm circuits |
| Output Drive | Sources 40mA continuously; drives LEDs, small relays, or logic inputs directly without buffer stages |
| Input Common-Mode Range | V− to V+ −1.3V; allows sensing signals referenced to ground or negative rails in mixed-supply systems |
| Hysteresis Control | Programmable via HYST pin (REF −50mV to REF); eliminates need for external positive-feedback networks |
Pinout & Package
MAX932ESA+T is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), pin-compatible with SO-8 and PDIP-8 footprints but offering 60% area reduction. Thermal resistance θJA = 244°C/W supports operation up to +85°C ambient without heatsinking.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Comparator A output; sinks/sources current, swings from V+ to V−; TTL/CMOS compatible when V− = GND |
| 2 | V− | Negative supply terminal; connect to GND for single-supply operation; defines reference for REF and input common-mode range |
| 3 | INA+ | Noninverting input of comparator A; accepts signals from V− to V+ −1.3V; high-impedance (±0.01nA leakage) |
| 4 | INB+ | Noninverting input of comparator B; identical electrical characteristics to INA+; enables dual-threshold or window configurations |
| 5 | INB− | Inverting input of comparator B; matched offset and leakage to INA−; supports differential or single-ended sensing |
| 6 | REF | 1.182V reference output referenced to V−; sources ≤15µA/sinks ≥8µA; must not be bypassed |
| 7 | V+ | Positive supply input; supports up to +11V; supplies both comparators and reference circuitry |
| 8 | HYST | Hysteresis control input; sets hysteresis band by voltage divider between REF and V−; range: REF −50mV to REF |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | <4µA max over full −40°C to +85°C range enables decade-scale battery operation in IoT sensors |
| Integrated 1.182V ±2% reference | Eliminates external reference IC or resistor divider, reducing BOM count and layout area in compact designs |
| HYST-pin programmable hysteresis | Enables precise, resistor-set hysteresis on both comparators simultaneously without feedback loops or stability analysis |
| No crowbar switching current | Prevents supply glitches during output transitions, removing need for aggressive power-supply decoupling |
| 40mA continuous output source | Drives LEDs, MOSFET gates, or logic inputs directly-no external driver required in low-power indicator circuits |
Applications
| Battery-Powered Threshold Detector | Window Comparator for Power Monitoring |
|---|---|
|
Use Scenario: Detecting low-battery condition in handheld medical devices before shutdown. IC Role / Device Role / Timing Role: Dual comparator monitors battery voltage against upper (OK) and lower (CRITICAL) thresholds using shared REF and HYST. Use Value: 4µA supply current extends device runtime; HYST pin simplifies hysteresis tuning to prevent chatter near trip points. |
Use Scenario: Validating 5V system supply within ±10% tolerance in industrial controllers. IC Role / Device Role / Timing Role: MAX932ESA+T implements undervoltage (OUTA) and overvoltage (OUTB) detection with independent thresholds set by resistor dividers. Use Value: Internal 1.182V reference ensures consistent trip points across temperature; dual outputs enable discrete fault signaling or AND-gated "power-good" status. |
| Oscillator Circuit with Hysteresis | Auto-Off Power Switch |
|
Use Scenario: Generating clock signals in ultra-low-power sensor nodes using relaxation oscillator topology. IC Role / Device Role / Timing Role: One comparator acts as Schmitt trigger with HYST-controlled hysteresis; second comparator buffers or conditions output. Use Value: Programmable HYST pin enables precise frequency control via RC time constant; 12µs propagation delay supports kHz-range oscillation. |
Use Scenario: Enabling timed power-down of peripheral modules after user inactivity in portable test equipment. IC Role / Device Role / Timing Role: Comparator A triggers latching circuit upon timeout; comparator B monitors reset button or wake signal. Use Value: 40mA output drives MOSFET gate directly; <4µA quiescent current ensures minimal standby drain during sleep mode. |
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, but rated for 0°C to +70°C commercial temperature range only | Not suitable for automotive or outdoor industrial deployments requiring extended temperature operation | Select MAX932CSA+ only for cost-sensitive consumer electronics with controlled ambient environments |
| MAX922ESA+ | 1% reference accuracy (vs. 2%), same dual-comparator architecture, but no HYST pin - requires external hysteresis network | Lacks integrated hysteresis control; increases component count and layout complexity for noise-immune threshold detection | Choose MAX922ESA+ when reference precision outweighs design simplicity and board space constraints |
Compared with MAX932CSA+, MAX932ESA+ delivers guaranteed operation down to −40°C and supports wider input voltage margins; versus MAX922ESA+, it trades 1% reference accuracy for simplified hysteresis implementation and lower system-level BOM cost.
Availability
MAX932ESA+T is available at Aetrix Electronics and suitable for battery-powered systems, threshold detectors, window comparators, and oscillator circuits requiring stable component supply across industrial temperature ranges.
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 communications markets.
The MAX931–MAX934 family was engineered specifically for ultra-low-power threshold detection in portable and energy-harvesting systems, integrating reference and hysteresis control to minimize external components and PCB area.
FAQ
What is the operating temperature range for MAX932ESA+T?
The MAX932ESA+T is specified for −40°C to +85°C operation, making it suitable for industrial and automotive under-hood applications where ambient temperatures exceed commercial-grade limits. This extended range is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the official datasheet, distinguishing it from the 0°C to +70°C MAX932CSA+ variant.
Can MAX932ESA+T operate from a 3V single supply?
Yes, MAX932ESA+T operates from +2.5V to +11V single supply, including 3V systems. At 3V, supply current remains below 3.0µA (typical), input common-mode range extends from V− to V+ −1.3V (i.e., 0V to 1.7V), and propagation delay increases to 14µs - all verified in the Electrical Characteristics tables for 3V operation.
How is hysteresis implemented on MAX932ESA+T?
Hysteresis on MAX932ESA+T is implemented via the HYST pin: connect R1 between REF and HYST, and R2 between HYST and V−. The hysteresis band equals twice the voltage difference between REF and HYST, adjustable from 0mV to 100mV. This method applies identical hysteresis to both comparators without external feedback paths.
Does MAX932ESA+T require output pull-up resistors?
No, MAX932ESA+T does not require external pull-up resistors. Its push-pull output stage actively sources up to 40mA and sinks up to 50mA, enabling direct drive of TTL/CMOS loads, LEDs, or MOSFET gates. The output swings fully from V+ to V− (or V+ to GND when V− = GND), eliminating passive termination.
Is the internal reference of MAX932ESA+T referenced to GND or V−?
The internal 1.182V reference of MAX932ESA+T is referenced to V−, not GND. When V− is tied to ground in single-supply operation, REF = 1.182V relative to GND. However, in dual-supply configurations (e.g., ±5V), REF = 1.182V above V− (e.g., −5V), yielding REF = −3.818V relative to GND - a critical detail for accurate threshold setting.
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:
- Active
- 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.
MAX932ESA+T Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP USA Inc.
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
