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Analog Devices Inc./Maxim Integrated MAX913CSA
- Part No.:
- MAX913CSA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX913CSA.pdf
- Description:
- IC COMPARATOR 1 W/LATCH 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,359
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Product details
Overview
The MAX913CSA from Maxim Integrated is a single, ultra-fast, low-power precision TTL comparator with differential inputs and complementary TTL outputs. It delivers 10ns typical propagation delay, ±5V or +5V single-supply operation, and stable linear-region behavior-ideal for high-speed zero-crossing detection and switching regulator feedback in industrial and communications systems.
For engineers reviewing the MAX913CSA datasheet, MAX913CSA pinout, MAX913CSA application, or MAX913CSA equivalent, key selection considerations include its latch-enable function, rail-to-rail input common-mode range (–0.2V to +3.5V on +5V supply), 0.8mV offset voltage, and SO-8 packaging compatible with automated SMT assembly.
Technical Context
The MAX913CSA employs a fully differential bipolar input stage with laser-trimmed offset voltage and no built-in hysteresis, enabling high-resolution comparison of slow-moving or low-amplitude signals without oscillation in the linear region. Its TTL-compatible latch (LE pin) provides transparent or latched output control independent of input slew rate.
It operates from +5V single supply (V− = GND) or ±5V split supplies, with input common-mode range extending 200mV below V− and 1.5V below V+, delivering 3.7V usable range on +5V and 8.7V on ±5V. Output stages drive standard TTL loads with VOH ≥ 2.4V (IOUT = 10mA) and VOL ≤ 0.4V (ISINK = 10mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 10ns typical (ΔVIN = 100mV, VOD = 20mV); enables >85MHz signal discrimination in timing-critical sampling circuits. |
| Input Offset Voltage | 0.8mV max at +25°C; ensures accurate threshold detection for sub-millivolt-level analog signals. |
| Supply Current | 6mA per comparator at +5V; supports battery-powered or thermally constrained designs without forced cooling. |
| Input Common-Mode Range | –0.2V to +3.5V on +5V supply; allows direct interfacing with sensors or DACs referenced to ground or negative rails. |
| Output Logic Compatibility | TTL-compliant VOH/VOL (2.4V/0.4V @ 10mA); drives standard logic families without level-shifting circuitry. |
| Latch Enable Function | LE pin controls transparent/latched mode; eliminates need for external flip-flops in synchronized sampling applications. |
| Power Supply Range | +4.5V to +5.5V (single) or ±4.5V to ±5.5V (dual); accommodates brown-out tolerant systems and legacy ±5V infrastructure. |
Pinout & Package
MAX913CSA is housed in an 8-pin SO (Small Outline) package, 150-mil body width, compliant with JEDEC MS-012. Pin 1 is marked with a beveled corner or dot; device orientation follows standard SOIC top-view convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (V+) | Positive power supply | Supplies both analog input stage and digital output drivers; requires local 0.1µF ceramic bypass to GND. |
| 2 (IN+) | Noninverting input | Differential input node; accepts signals up to +3.5V on +5V supply, including those below GND when V− = –5V. |
| 3 (IN−) | Inverting input | Differential input node; common-mode range matches IN+, enabling true rail-to-rail input operation. |
| 4 (V−) | Negative power supply | Connect to GND for single +5V operation; connect to –5V for dual supply-powers only analog section. |
| 5 (LE) | Latch enable | TTL-compatible control: high/floating = latched output; low = transparent mode; no minimum pulse width required. |
| 6 (GND) | Logic ground reference | Return path for digital output stage and internal bias networks; must be connected to system ground plane. |
| 7 (Q) | TTL output | Active-high output; sinks 10mA / sources 1mA; compatible with 74LS, 74F, and microcontroller GPIO inputs. |
| 8 (Q̄) | Complementary TTL output | Active-low inverse of Q; enables differential signaling or direct interface to RS-422 receivers without inverters. |
Key Features
| Feature | Design Value |
|---|---|
| No linear-region oscillation | Stable output during slow input transitions eliminates need for external hysteresis, preserving full resolution near zero-crossing. |
| Rail-to-rail input capability | Inputs operate 200mV below V− and 1.5V below V+, supporting direct connection to transducers and op-amp outputs. |
| Low-power TTL interface | 6mA supply current at +5V with full TTL drive strength enables integration into power-sensitive embedded systems. |
| Single/dual supply flexibility | Operates identically on +5V (V− = GND) or ±5V-no configuration changes or external components required. |
| Input slew-rate independence | Valid output guaranteed regardless of input dV/dt, simplifying design for variable-frequency or low-slew-rate sensor interfaces. |
Applications
| Zero-Crossing Detection | Ethernet Line Reception |
|---|---|
|
Use Scenario: Detecting polarity reversal of AC line voltage or audio signals in energy metering or motor control. IC Role / Device Role / Timing Role: Precision comparator with latch function captures exact zero-crossing point under varying load conditions. Use Value: 0.8mV offset and linear-region stability ensure <100µs timing error across temperature, eliminating phase drift in synchronous rectifiers. |
Use Scenario: Recovering digital data from differential Ethernet PHY signals in 10BASE-T or legacy LAN transceivers. IC Role / Device Role / Timing Role: High-speed differential receiver converting twisted-pair analog waveforms into clean TTL logic levels. Use Value: 10ns propagation delay and 500ps channel matching (vs. dual MAX912) support reliable sampling at 10Mbps with minimal jitter accumulation. |
| Switching Regulator Feedback | High-Speed Pulse Discrimination |
|
Use Scenario: Monitoring output ripple and transient response in DC-DC converters using voltage-mode or current-mode control. IC Role / Device Role / Timing Role: Fast comparator comparing sensed output against reference to trigger PWM duty-cycle correction. Use Value: Stable linear-region behavior prevents false triggering during soft-start or light-load conditions where output ramps slowly. |
Use Scenario: Identifying pulse width or amplitude thresholds in test equipment, laser ranging, or time-of-flight measurement. IC Role / Device Role / Timing Role: Threshold detector with latch synchronizing output to system clock for precise edge timing capture. Use Value: LE-controlled latching enables deterministic sampling of nanosecond-scale pulses without metastability risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1016CN8#PBF | Higher 12ns propagation delay; 1.5mV offset; no latch function; requires ±5V only. | Lacks LE-controlled latching and single-supply operation-unsuitable for battery-powered or latch-synchronized designs. | Select when legacy ±5V infrastructure exists and latch functionality is unnecessary. |
| LM360N | 25ns propagation delay; 2mV offset; no latch; TTL output but higher 12mA supply current. | Slower response and higher power limit use in >10MHz sampling or portable applications. | Select for cost-sensitive, non-critical timing applications where 10ns speed is not required. |
Compared with LT1016CN8#PBF and LM360N, the MAX913CSA offers superior speed-resolution trade-off (10ns/0.8mV), integrated latch control, and single-supply flexibility-making it optimal for modern embedded timing, sensing, and power management where deterministic edge capture and low power coexist.
Availability
MAX913CSA is available at Aetrix Electronics and suitable for zero-crossing detection, Ethernet line reception, and switching regulator feedback requiring stable component supply, long-term lifecycle support, and RoHS-compliant SO-8 packaging.
Supply support for MAX913CSA 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 computing markets.
The MAX912/MAX913 family was designed as ultra-fast, low-power precision comparators targeting applications demanding stable linear-region operation, latch synchronization, and TTL compatibility-filling a gap between general-purpose comparators and high-end ADC drivers.
FAQ
What supply voltages does the MAX913CSA support?
The MAX913CSA operates from a single +5V supply (with V− connected to GND) or dual ±5V supplies. Its absolute maximum ratings allow +7V on V+ and –7V on V−, but specified performance is guaranteed only from +4.5V to +5.5V (single) or ±4.5V to ±5.5V (dual). The MAX913CSA maintains full electrical specifications-including 10ns propagation delay and 0.8mV offset-across this range.
Does the MAX913CSA require external hysteresis for stable operation?
No-the MAX913CSA is specifically designed to remain stable in its linear region without external hysteresis. Its unique architecture prevents oscillation during slow input transitions, preserving resolution around the zero-crossing point. Adding hysteresis degrades accuracy by introducing a dead band; Maxim explicitly recommends against it for the MAX913CSA unless noise immunity outweighs resolution requirements.
How does the latch enable (LE) pin function on the MAX913CSA?
On the MAX913CSA, the LE pin controls output transparency: when LE is low, Q and Q̄ follow the differential input in real time; when LE is high or floating, the outputs hold their last valid state. This latch function is TTL-compatible (VIH ≥ 2.0V, VIL ≤ 0.8V) and requires no external clock-enabling simple edge-triggered sampling in systems like oscilloscopes or digital power controllers.
What is the input common-mode voltage range for the MAX913CSA on a +5V supply?
When powered from a +5V single supply (V− = GND), the MAX913CSA's input common-mode range is –0.2V to +3.5V. This means both IN+ and IN− can accept signals 200mV below ground and up to 1.5V below V+, enabling direct interface with sensors, DACs, or op-amps operating near rail limits-without level-shifting circuitry.
Is the MAX913CSA pin-compatible with other comparators in the same package?
The MAX913CSA uses a standard 8-pin SOIC footprint (MS-012), but its pinout is not identical to generic comparators like LM311 or LM393. Specifically, pins 1 (V+), 4 (V−), 5 (LE), 6 (GND), 7 (Q), and 8 (Q̄) differ in function and placement. Direct replacement requires schematic and layout revision; the MAX913CSA's LE and complementary outputs necessitate intentional design integration-not drop-in substitution.
MAX913CSA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- with Latch
- Number of Elements:
- 1
- Output Type:
- Complementary, TTL
- Voltage - Supply, Single/Dual (±):
- 5V ~ 10V
- :
- 2mV @ ±5V
- Voltage - Input Offset (Max):
- 5µA @ ±5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 10mA
- Current - Quiescent (Max):
- 110dB CMRR, 100dB PSRR
- CMRR, PSRR (Typ):
- 14ns
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
MAX913CSA FAQ
1.How can I place an order for MAX913CSA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX913CSA 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 MAX913CSA reliable?
The price and inventory of MAX913CSA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX913CSA is usually 5 days.
3.What payment methods are accepted for MAX913CSA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX913CSA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX913CSA?
MAX913CSA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX913CSA 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 MAX913CSA?
For technical support, including MAX913CSA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX913CSA requirements.
6.How does Aetrix verify that MAX913CSA is sourced from the original manufacturer or authorized distributors?
All MAX913CSA 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 MAX913CSA meets industry standards.
7.What is the process for return or replacement of MAX913CSA?
All MAX913CSA units undergo pre-shipment inspection (PSI). If there is an issue with MAX913CSA, 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 MAX913CSA part is unused and in its original packaging.
Return procedure for MAX913CSA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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