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Analog Devices Inc./Maxim Integrated MAX933CSA+TG002
- Part No.:
- MAX933CSA+TG002
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- -
- Datasheet:
-
MAX933CSA+TG002.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:3,371
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Product details
Overview
MAX933CSA+TG002 from Maxim Integrated is a dual micropower comparator with integrated 1.182V ±2% bandgap reference, programmable hysteresis via HYST pin, TTL/CMOS-compatible outputs that source up to 40mA and sink ≥5mA, and operates from +2.5V to +11V single supply (or ±1.25V to ±5.5V dual supply). It targets battery-powered threshold detection and window monitoring in portable instrumentation and low-power sensor interfaces.
For engineers reviewing the MAX933CSA+TG002 datasheet, MAX933CSA+TG002 pinout, MAX933CSA+TG002 application, or MAX933CSA+TG002 equivalent, key selection criteria include ultra-low 4µA max quiescent current over temperature, input common-mode range extending to V− and within 1.3V of V+, 12µs propagation delay at 10mV overdrive, and compatibility with 0°C to +70°C commercial temperature operation in 8-pin SO package.
Technical Context
The MAX933CSA+TG002 implements two independent comparators sharing one internal 1.182V reference and a dedicated HYST pin for resistor-programmable hysteresis without external feedback. Its output stage eliminates crowbar current during transitions, minimizing parasitic supply feedback and enabling stable operation without strict layout constraints.
Each comparator supports rail-to-rail input voltage range from V− to (V+ − 1.3V), accepts inputs beyond rails by ±0.3V without damage, and delivers TTL/CMOS-compatible logic levels-output swings from V+ to V− (not GND), requiring V− connection to ground for single-supply TTL compatibility. The device is specified for 3V and 5V operation with validated performance down to 2.5V minimum supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +11V single supply; ±1.25V to ±5.5V dual supply - enables direct use in 3V/5V systems and bipolar signal monitoring. |
| Quiescent Supply Current | <4µA max over temperature - ensures multi-year battery life in always-on sensing nodes. |
| Reference Voltage | 1.182V ±2% (0°C to +70°C) referenced to V− - provides stable, self-contained threshold generation without external components. |
| Propagation Delay | 12µs typical at 10mV overdrive - supports medium-speed event detection in power management and alarm circuits. |
| Output Drive Capability | Sources ≥40mA continuously; sinks ≥5mA - directly drives LEDs, small relays, or logic inputs without buffer stages. |
| Input Common-Mode Range | V− to (V+ − 1.3V) - allows detection of signals near ground or high-side sensing in single-supply configurations. |
| Hysteresis Control | HYST pin accepts REF − 0.05V to REF - enables precise, resistor-set hysteresis bands up to 100mV without feedback networks. |
Pinout & Package
MAX933CSA+TG002 is housed in an 8-pin plastic SO (Small Outline) package, compliant with JEDEC MS-012, with 1.27mm lead pitch and surface-mount footprint. Pin 1 is marked with a bevelled corner or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Comparator A output; sinks and sources current; swings from V+ to V− - requires V− tied to GND for TTL-compatible low-level output. |
| 2 | V− | Negative supply terminal; connect to GND for single-supply operation - defines reference point for REF and output swing. |
| 3 | INA+ | Noninverting input of comparator A - accepts signals from V− to (V+ − 1.3V); high-impedance (±0.01nA leakage). |
| 4 | INB− | Inverting input of comparator B - used with INA+ or INB+ to form differential or single-ended thresholds. |
| 5 | INB+ | Noninverting input of comparator B - shares same electrical specs as INA+; enables dual independent comparisons. |
| 6 | HYST | Hysteresis control input; connects to REF or resistor divider - sets hysteresis band by adjusting voltage between REF − 50mV and REF. |
| 7 | REF | 1.182V ±2% reference output referenced to V− - supplies precision voltage for thresholds; max load ±15µA source / ±8µA sink. |
| 8 | V+ | Positive supply input - supports 2.5V–11V operation; decoupling recommended if supply impedance >1Ω. |
Key Features
| Feature | Design Value |
|---|---|
| No crowbar output switching | Eliminates supply-line glitches during output transitions, reducing need for aggressive power-supply bypassing and improving system stability. |
| Programmable hysteresis via HYST pin | Enables precise, resistor-defined hysteresis (up to 100mV) without external op-amp feedback, simplifying PCB layout and component count. |
| Rail-to-rail input common-mode range | Accepts inputs from V− to (V+ − 1.3V), supporting ground-referenced and high-side sensing in single-supply systems. |
| 40mA continuous output source current | Directly drives LEDs, optocouplers, or logic gates without external drivers, reducing BOM and board space in portable designs. |
| Ultra-low 4µA max supply current | Extends battery life in always-on applications such as smoke detectors, wearables, and remote sensors operating over industrial temperature ranges. |
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 compares battery voltage against upper (5.5V) and lower (4.5V) thresholds using internal REF and resistor dividers. Use Value: Eliminates external reference and reduces quiescent current to <4µA, extending runtime by months on a single coin cell. |
Use Scenario: Validating DC supply integrity in industrial PLC I/O modules. IC Role / Device Role / Timing Role: MAX933CSA+TG002 implements undervoltage (OUTA) and overvoltage (OUTB) flags; AND-gated output yields "power-good" signal. Use Value: Built-in hysteresis prevents chatter near trip points; dual outputs enable independent fault reporting without microcontroller polling. |
| Oscillator Circuit with Hysteresis | Auto-Off Power Switch |
Use Scenario: Generating clock signals for low-power microcontrollers in energy-harvesting nodes. IC Role / Device Role / Timing Role: Configured as Schmitt trigger using HYST pin and RC network; REF provides stable threshold reference. Use Value: Propagation delay of 12µs at 10mV overdrive enables kHz-range oscillation; 4µA quiescent current minimizes idle power loss. |
Use Scenario: Enabling timed power-down of peripheral circuitry after user inactivity in smart meters. IC Role / Device Role / Timing Role: One comparator monitors RC timer voltage; second comparator controls MOSFET gate via high-current OUTA output. Use Value: 40mA source capability directly drives logic-level MOSFETs; auto-reset enabled by HYST-controlled hysteresis band. |
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 |
|---|---|---|---|
| MAX933ESA+ | Same functionality and pinout; rated for −40°C to +85°C extended temperature range; SO package with different marking and tape/reel packaging. | Required for automotive or outdoor industrial deployments where ambient exceeds +70°C. | Select MAX933ESA+ when operating outside 0°C–70°C commercial range; otherwise MAX933CSA+TG002 offers cost-optimized commercial-grade supply. |
| MAX923CSA+ | Pin-compatible dual comparator with 1% accurate reference (1.182V ±1%); identical SO-8 package and pinout; higher precision at slightly higher quiescent current (~5µA). | Preferred in precision voltage monitoring where ±2% reference tolerance is insufficient, e.g., calibrated sensor front-ends. | Choose MAX923CSA+ only if reference accuracy tighter than ±2% is mandatory; MAX933CSA+TG002 remains optimal for cost-sensitive, battery-constrained designs. |
Compared with MAX933ESA+ and MAX923CSA+, the MAX933CSA+TG002 delivers the lowest quiescent current (≤4µA) and lowest unit cost within the commercial temperature grade, making it ideal for high-volume portable electronics where reference tolerance ≤±2% and ambient stays within 0°C–70°C.
Availability
MAX933CSA+TG002 is available at Aetrix Electronics and suitable for battery-powered systems, threshold detectors, window comparators, and oscillator circuits requiring stable component supply with guaranteed commercial-temperature performance and long-term production continuity.
Supply support for MAX933CSA+TG002 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 MAX931–MAX934 family was designed specifically for ultra-low-power, cost-sensitive comparator applications requiring integrated reference and hysteresis - targeting portable instrumentation, sensor interfaces, and power-monitoring subsystems.
FAQ
What is the maximum supply voltage for MAX933CSA+TG002 in single-supply operation?
The MAX933CSA+TG002 supports a single-supply voltage range of +2.5V to +11V. When operated with V− connected to GND, the absolute maximum V+ is +11V. Exceeding this violates Absolute Maximum Ratings and may cause permanent damage. Operation at 5V or 3.3V is fully characterized and recommended for most applications.
Does MAX933CSA+TG002 require external bypass capacitors?
MAX933CSA+TG002 does not require mandatory power-supply bypassing if the source impedance is low (<1Ω) and trace lengths are short. However, a 100nF ceramic capacitor placed close to pins 2 (V−) and 8 (V+) is strongly recommended when supply leads are long or impedance is high to suppress noise coupling into the reference and comparator inputs.
Can the REF pin of MAX933CSA+TG002 be bypassed with a capacitor?
No - the REF pin of MAX933CSA+TG002 must not be bypassed with any capacitor. Doing so destabilizes the internal bandgap reference and increases output noise. The reference is designed for direct connection to resistive dividers or high-impedance loads only; its output is specified for ±15µA source and ±8µA sink capability.
Is MAX933CSA+TG002 pin-compatible with MAX923CSA+?
Yes - MAX933CSA+TG002 is pin-compatible with MAX923CSA+. Both are 8-pin SO-packaged dual comparators with identical pin assignments for V+, V−, INA+, INB−, INB+, HYST, REF, and OUTA/OUTB. This allows drop-in replacement where enhanced reference accuracy (±1% vs. ±2%) is required, though quiescent current increases slightly.
What is the guaranteed input common-mode voltage range for MAX933CSA+TG002?
The guaranteed input common-mode voltage range for MAX933CSA+TG002 is from V− to (V+ − 1.3V) across the full operating temperature range (0°C to +70°C). Inputs may tolerate voltages up to ±0.3V beyond these rails without damage, but valid comparison behavior is only assured within the specified range.
MAX933CSA+TG002 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- -
- Number of Elements:
- -
- Output Type:
- -
- Voltage - Supply, Single/Dual (±):
- -
- :
- -
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- -
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- :
- -
MAX933CSA+TG002 FAQ
1.How can I place an order for MAX933CSA+TG002 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX933CSA+TG002 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 MAX933CSA+TG002 reliable?
The price and inventory of MAX933CSA+TG002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX933CSA+TG002 is usually 5 days.
3.What payment methods are accepted for MAX933CSA+TG002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX933CSA+TG002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX933CSA+TG002?
MAX933CSA+TG002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX933CSA+TG002 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 MAX933CSA+TG002?
For technical support, including MAX933CSA+TG002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX933CSA+TG002 requirements.
6.How does Aetrix verify that MAX933CSA+TG002 is sourced from the original manufacturer or authorized distributors?
All MAX933CSA+TG002 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 MAX933CSA+TG002 meets industry standards.
7.What is the process for return or replacement of MAX933CSA+TG002?
All MAX933CSA+TG002 units undergo pre-shipment inspection (PSI). If there is an issue with MAX933CSA+TG002, 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 MAX933CSA+TG002 part is unused and in its original packaging.
Return procedure for MAX933CSA+TG002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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