My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX932CSA+T
- Part No.:
- MAX932CSA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX932CSA+T.pdf
- Description:
- IC COMPARATOR 2 W/VOLT REF 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,446
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX932CSA+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 capability (V− to V+ −1.3V) are critical.
For engineers reviewing the MAX932CSA+T datasheet, MAX932CSA+T pinout, MAX932CSA+T application, or MAX932CSA+T equivalent, this page delivers verified electrical parameters, package-specific pin functions, real-world use cases in low-voltage sensing, and two confirmed alternative parts with documented functional and interface differences.
Technical Context
The MAX932CSA+T integrates two independent comparators sharing one internal 1.182V reference and a dedicated HYST terminal for resistor-programmable hysteresis without external feedback. Its output stage eliminates crowbar current during transitions, minimizing supply-line parasitic coupling and enabling stable operation even with suboptimal PCB layout.
Input common-mode range extends from V− to V+ −1.3V; output swings from V+ to V− (not GND), requiring V− connection to ground for single-supply TTL compatibility. Propagation delay is 12µs typical at 10mV overdrive, with 20µVRMS voltage noise (100Hz–100kHz) and ±10mV input offset voltage over temperature.
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 both battery-powered and bipolar signal monitoring systems |
| Quiescent Current | <4µA max over extended temperature - enables multi-year operation on coin-cell batteries |
| Reference Voltage | 1.182V ±2% (0°C to +70°C) referenced to V− - provides stable trip point without external precision reference |
| Input Offset Voltage | ±10mV max - defines minimum detectable differential voltage between IN+ and IN− |
| Propagation Delay | 12µs typical at 10mV overdrive - determines maximum response speed in fast threshold-detection applications |
| Output Drive | Sources 40mA continuously, sinks 8mA - directly drives LEDs, small relays, or logic inputs without buffer stages |
| Input Common-Mode Range | V− to V+ −1.3V - allows sensing near ground or high-side signals in single-supply configurations |
Pinout & Package
MAX932CSA+T is supplied in an 8-pin SO (Small Outline) package, RoHS-compliant, with operating temperature range 0°C to +70°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Comparator A output; sinks and sources current; swings from V+ to V− |
| 2 | V− | Negative supply rail; connect to GND for single-supply operation |
| 3 | INA+ | Noninverting input of comparator A; accepts signals from V− to V+ −1.3V |
| 4 | INB− | Inverting input of comparator B; shares same input voltage range as INA+ |
| 5 | INB+ | Noninverting input of comparator B; used with HYST to set hysteresis thresholds |
| 6 | HYST | Hysteresis control input; voltage range REF −50mV to REF - sets hysteresis band width |
| 7 | REF | 1.182V reference output referenced to V−; sources ≤15µA, sinks ≥8µA |
| 8 | V+ | Positive supply rail; supports up to +11V or ±5.5V |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | <4µA max ensures >10-year battery life in always-on sensor nodes |
| Integrated 2% reference | Eliminates need for external reference IC or resistor divider, reducing BOM count and layout area |
| Resistor-programmable hysteresis | Uses HYST pin with two resistors - no op-amp feedback loop required, simplifying design and improving stability |
| TTL/CMOS-compatible output | Swings fully to V+ and V−, enabling direct interface with 5V logic without level-shifting circuitry |
| No crowbar current during switching | Prevents supply rail disturbance and eliminates need for heavy local bypassing |
Applications
| Battery-Powered Threshold Detector | Window Comparator for Power Monitoring |
|---|---|
|
Use Scenario: Detecting low-battery condition in portable medical devices using a single 3V coin cell. IC Role / Device Role: Dual comparator compares battery voltage against upper and lower thresholds derived from internal REF and resistor dividers. Use Value: Eliminates external reference and reduces total solution current to <5µA, extending operational life beyond 5 years. |
Use Scenario: Monitoring 5V system supply for undervoltage (4.5V) and overvoltage (5.5V) faults in industrial controllers. IC Role / Device Role: MAX932CSA+T's two comparators implement independent high/low trip points with shared REF and HYST-configured hysteresis. Use Value: Achieves precise, chatter-free fault detection with only four external resistors and no additional ICs. |
| Oscillator Circuit with Hysteresis | Auto-Shutoff Power Switch |
|
Use Scenario: Building a low-power relaxation oscillator for timing pulses in energy-harvesting sensor nodes. IC Role / Device Role: One comparator acts as Schmitt trigger with HYST pin controlling hysteresis; second comparator monitors timing capacitor voltage. Use Value: Enables oscillator frequency stability over temperature and supply variation without trimming components. |
Use Scenario: Implementing timed power-off in handheld test equipment after button release. IC Role / Device Role: Comparator A triggers MOSFET gate based on RC timer voltage; comparator B provides hysteresis to prevent oscillation during threshold crossing. Use Value: Delivers reliable auto-off with <4µA standby current and no microcontroller required. |
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 |
|---|---|---|---|
| MAX932ESA+ | Same functionality and pinout; rated for −40°C to +85°C industrial temperature range | Required for outdoor or automotive-adjacent environments where extended temp operation is mandatory | Select MAX932ESA+ when operating outside 0°C–+70°C commercial range |
| MAX922CSA+ | 1% reference accuracy (vs. 2%), otherwise identical architecture and pinout; higher cost | Used where tighter trip-point tolerance is needed, e.g., precision power-good signaling in telecom systems | Choose MAX922CSA+ only if ±1% reference drift is required; otherwise MAX932CSA+ offers optimal cost/power trade-off |
Compared with MAX932ESA+, MAX932CSA+ trades extended temperature support for lower cost and commercial-grade qualification; compared with MAX922CSA+, it sacrifices reference accuracy for reduced price and identical micropower performance - making it ideal for cost-sensitive, battery-operated consumer and industrial sensors.
Availability
MAX932CSA+T is available at Aetrix Electronics and suitable for battery-powered systems, threshold detectors, window comparators, and oscillator circuits requiring stable component supply with long-term lifecycle assurance.
Supply support for MAX932CSA+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, sensing, and interface applications in industrial, medical, and communications markets.
The MAX931–MAX934 family was engineered specifically for ultra-low-power, single-supply sensing applications where micropower consumption, integrated reference, and robust hysteresis control are essential - targeting portable instrumentation and long-life IoT endpoints.
FAQ
What is the operating temperature range for MAX932CSA+T?
The MAX932CSA+T is specified for 0°C to +70°C (commercial temperature range). This is confirmed in the Ordering Information table, where "MAX932CSA" maps to the "C" grade (0°C to +70°C) in 8-pin SO packaging. For extended temperature operation, consider MAX932ESA+ (−40°C to +85°C), which shares identical functionality and pinout.
Does MAX932CSA+T include an internal voltage reference?
Yes, MAX932CSA+T integrates a 1.182V ±2% bandgap voltage reference referenced to V−, usable across the full 0°C to +70°C range. The REF pin delivers this voltage with sourcing capability up to 15µA and sinking down to 8µA - sufficient to drive resistor dividers for comparator thresholds without external buffering.
How is hysteresis implemented on MAX932CSA+T?
Hysteresis on MAX932CSA+T is implemented via the HYST pin: connect R1 between REF and HYST, and R2 between HYST and V−. The hysteresis band (VHB) ≈ 2 × (VREF − VHYST), with VHYST adjustable from REF −50mV to REF. This method requires no external op-amp or feedback network and applies identically to both comparators.
What are the absolute maximum supply voltage ratings for MAX932CSA+T?
Per Absolute Maximum Ratings, MAX932CSA+T supports V+ to V− up to +12V, and V+ to GND up to +12V. For continuous operation, the recommended supply range is +2.5V to +11V (single supply) or ±1.25V to ±5.5V (dual supply). Exceeding +12V differential may cause permanent damage.
Is MAX932CSA+T pin-compatible with any other Maxim comparators?
MAX932CSA+T is not pin-compatible with MAX922CSA+ (despite similar function), as explicitly stated in the datasheet: "The MAX932 and MAX922 are not pin-compatible." However, it shares the same 8-pin SO footprint and pin assignments as MAX932ESA+ and MAX932CUA+, differing only in temperature grade or package variant.
MAX932CSA+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:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
MAX932CSA+T FAQ
1.How can I place an order for MAX932CSA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX932CSA+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 MAX932CSA+T reliable?
The price and inventory of MAX932CSA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX932CSA+T is usually 5 days.
3.What payment methods are accepted for MAX932CSA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX932CSA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX932CSA+T?
MAX932CSA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX932CSA+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 MAX932CSA+T?
For technical support, including MAX932CSA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX932CSA+T requirements.
6.How does Aetrix verify that MAX932CSA+T is sourced from the original manufacturer or authorized distributors?
All MAX932CSA+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 MAX932CSA+T meets industry standards.
7.What is the process for return or replacement of MAX932CSA+T?
All MAX932CSA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX932CSA+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 MAX932CSA+T part is unused and in its original packaging.
Return procedure for MAX932CSA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX932CSA+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…
