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Analog Devices Inc./Maxim Integrated MAX903CSA+G002
- Part No.:
- MAX903CSA+G002
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- -
- Datasheet:
-
MAX903CSA+G002.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:3,510
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Product details
Overview
MAX903CSA+G002 from Maxim Integrated is a high-speed, low-power quad voltage comparator with differential analog inputs and TTL-compatible outputs featuring active internal pull-ups. It delivers 8ns typical propagation delay at 5mV overdrive, consumes 18mW per comparator at +5V, supports ±5V or +5V-to-+10V analog supplies with input common-mode range extending to the negative rail, and includes independent TTL latch inputs for output hold functionality - ideal for high-speed A/D converter front-ends and line receivers.
For engineers reviewing the MAX903CSA+G002 datasheet, MAX903CSA+G002 pinout, MAX903CSA+G002 application, or MAX903CSA+G002 equivalent, key selection criteria include propagation delay consistency across channels, latch timing parameters (tpd+(D), ts, th), dual-supply isolation capability (VCC/VEE vs. VDD), output drive strength under 8mA sink load, and SO-8 package thermal performance in industrial temperature range operation.
Technical Context
The MAX903CSA+G002 implements four independent high-gain comparators with fully differential analog inputs referenced to VEE (analog ground/subsystem), each equipped with dedicated TTL-compatible latch inputs enabling synchronous output capture. Its architecture separates analog (VCC/VEE) and digital (VDD/GND) supply domains to minimize noise coupling in mixed-signal systems.
Propagation delay is guaranteed ≤15ns over full temperature range (0°C to +70°C) with 5mV input overdrive into 15pF load, and output response asymmetry (∆tpd) is limited to 1–3ns between any two channels. Latch control operates with defined VIH/VIL thresholds (1.4V/0.8V) and requires minimum 10ns disable pulse width for reliable state acquisition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay (tpd+, tpd−) | 10ns typ / 15ns max at 5mV overdrive, 15pF load - enables sampling of >60MHz signals without timing skew-induced decision errors |
| Input Offset Voltage (VOS) | 1–3mV max over temperature - ensures accurate threshold detection within ±3mV window for precision level sensing |
| Power Dissipation per Comparator | 18mW typ at +5V - allows dense placement in thermally constrained SO-8 layouts without forced airflow |
| Analog Supply Range | +5V to +10V (VEE = GND) or ±5V - supports single-supply ground-sensing and split-rail signal conditioning |
| Output Drive Capability | VOL = 0.3V max at 8mA sink, VOH = 2.4V min at 1mA source - directly interfaces standard LS-TTL and 74HC logic families |
| Latch Input Timing | ts = 2ns min setup, th = 1ns min hold, tpw(D) = 10ns min - permits tight synchronization with 100MHz+ clock domains |
Pinout & Package
MAX903CSA+G002 is housed in an 8-pin SO (Small Outline) package with gull-wing leads, rated for 0°C to +70°C operation, and features exposed pad thermal enhancement compatible with standard reflow profiles.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Positive analog supply input - must be decoupled locally to minimize high-frequency noise on comparator reference rails |
| 2 | IN+ | Non-inverting input of Channel A - accepts common-mode voltages down to VEE −0.1V for true ground-referenced sensing |
| 3 | IN− | Inverting input of Channel A - differential pair with IN+ defines switching threshold; matched layout critical for <1ns skew |
| 4 | VEE | Analog negative supply and substrate connection - serves as analog ground reference and must be isolated from digital return paths |
| 5 | LATCH | TTL-compatible latch enable for Channel A - driven low to freeze output state; high impedance when inactive |
| 6 | GND | Digital ground - connects to VDD return and must be routed separately from VEE to prevent digital noise injection |
| 7 | OUT | TTL-output of Channel A - actively drives high (with internal pull-up) or sinks up to 8mA low; fan-out of four LS-TTL loads |
| 8 | VDD | Positive digital supply - fixed +5V required; powers output stage and latch circuitry independently of analog rails |
Key Features
| Feature | Design Value |
|---|---|
| 8ns typical propagation delay | Enables real-time discrimination of fast transient events in data acquisition and communication line receivers |
| Independent TTL latch inputs per channel | Allows synchronized sampling of four analog signals with sub-10ns timing alignment across channels |
| Input common-mode range includes negative rail | Permits direct interface to unipolar sensors (e.g., current shunts, thermocouples) without level-shifting circuitry |
| Separate analog and digital supply domains | Reduces crosstalk-induced jitter in mixed-signal systems by isolating sensitive analog front-end from noisy digital switching |
| 18mW/comparator power consumption | Supports integration into space-constrained, low-power embedded systems without thermal derating penalties |
Applications
| High-Speed A/D Converters | Line Receivers |
|---|---|
Use Scenario: Front-end comparison stage in flash or pipeline ADC architectures requiring sub-10ns decision latency. IC Role / Device Role / Timing Role: Quad comparator providing parallel threshold evaluation for multi-bit conversion; latch inputs synchronize sampling to system clock edge. Use Value: 8ns propagation delay and <3ns inter-channel skew ensure monotonic code transitions and eliminate missing codes due to timing mismatch. |
Use Scenario: RS-422/RS-485 differential receiver stage converting twisted-pair signals to clean TTL logic levels. IC Role / Device Role / Timing Role: Differential comparator detecting polarity reversal on balanced lines; VEE referenced to cable shield minimizes common-mode noise impact. Use Value: Input range extending to VEE −0.1V enables robust reception of signals with large ground potential differences across long cables. |
| Threshold Detectors | PWM Circuits |
Use Scenario: Real-time monitoring of sensor outputs (e.g., voltage, current, temperature) against programmable alarm thresholds. IC Role / Device Role / Timing Role: Precision comparator comparing analog feedback against DAC-generated reference; latch holds alarm state until serviced. Use Value: 1–3mV max input offset ensures detection accuracy within ±3mV, critical for fault identification in safety-critical systems. |
Use Scenario: Edge-triggered PWM generation where comparator output directly controls MOSFET gate drivers. IC Role / Device Role / Timing Role: High-speed comparator comparing ramp waveform against control voltage; fast 10ns response prevents duty-cycle distortion at >10MHz frequencies. Use Value: Consistent 10ns propagation delay across temperature ensures stable PWM frequency and minimal jitter in motor control loops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9203ESA+ | Pin-for-pin compatible, same SO-8 package; 8ns propagation delay, but only 9mW/comparator power dissipation | Lower power enables higher density in thermally limited designs; identical latch timing and supply flexibility | Select when power budget is constrained and legacy MAX903CSA+G002 layout must be retained |
| LM339DR | Quad comparator in SO-14; 1.3µs propagation delay, no latch inputs, single +5V supply only, 0.8mW/comparator | Suitable for low-speed threshold detection only; lacks high-speed timing, latch control, and dual-supply isolation | Select only for cost-sensitive, non-timing-critical applications where speed and latch functionality are unnecessary |
Compared with MAX903CSA+G002, MAX9203ESA+ offers identical timing and pinout with half the power, while LM339DR trades speed and latch capability for ultra-low cost and power - making MAX9203ESA+ the preferred drop-in upgrade and LM339DR a functional alternative only in low-frequency contexts.
Availability
MAX903CSA+G002 is available at Aetrix Electronics and suitable for high-speed data sampling, precision threshold detection, and industrial line receiver designs requiring stable component supply and documented legacy support.
Supply support for MAX903CSA+G002 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 applications.
The MAX900–MAX903 family was designed as high-speed, low-power voltage comparators targeting precision timing-critical systems such as A/D converters, V/F converters, and digital line receivers requiring sub-10ns decision latency and latch-controlled sampling.
FAQ
What is the operating temperature range for MAX903CSA+G002?
The MAX903CSA+G002 is specified for 0°C to +70°C ambient operation, matching the 'C' grade designation in Maxim's ordering nomenclature. This range covers commercial and many industrial environments where ambient temperatures remain within this bound. The device maintains guaranteed propagation delay ≤15ns and input offset voltage ≤3mV across this full range, ensuring consistent timing and accuracy without derating.
Does MAX903CSA+G002 support single-supply operation?
Yes, MAX903CSA+G002 supports single-supply operation with VEE tied to ground and VCC supplied from +5V to +10V. Its input common-mode range extends to VEE −0.1V, enabling true ground-referenced sensing - critical for interfacing with unipolar sensors or current-shunt monitors without external level-shifting circuitry. VDD must remain at +5V regardless of analog supply configuration.
What is the function of the LATCH pin on MAX903CSA+G002?
The LATCH pin on MAX903CSA+G002 is a TTL-compatible control input that freezes the output state of Channel A when driven low. When high, the comparator operates transparently; when pulled low, the output retains its logic level at the instant of latch activation, independent of subsequent input changes. This enables synchronous sampling of analog signals aligned to system clock edges, with defined setup (2ns) and hold (1ns) timing requirements.
Can MAX903CSA+G002 be used with split ±5V analog supplies?
Yes, MAX903CSA+G002 is fully compatible with ±5V analog supplies: VCC = +5V, VEE = −5V. This configuration provides symmetrical input voltage range (−5.1V to +2.75V), improves noise immunity in bipolar signal chains, and enables direct interface to op-amp stages operating on split rails. Digital supply VDD remains +5V, and GND serves as the digital reference point - requiring careful PCB partitioning to avoid analog-digital ground coupling.
Is MAX903CSA+G002 recommended for new designs?
No, MAX903CSA+G002 is Not Recommended for New Designs per Maxim's official documentation, as it was manufactured using a discontinued wafer process. While fully supported for existing users with datasheet availability and legacy stock, Maxim recommends the pin-compatible MAX9203ESA+ as a direct replacement offering identical speed and half the power dissipation. Aetrix Electronics maintains inventory for continuity but advises new designs to evaluate the MAX9203 series.
MAX903CSA+G002 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- -
- Series:
- -
- Packaging:
- Bulk
- 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:
- -
- :
- -
MAX903CSA+G002 FAQ
1.How can I place an order for MAX903CSA+G002 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX903CSA+G002 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 MAX903CSA+G002 reliable?
The price and inventory of MAX903CSA+G002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX903CSA+G002 is usually 5 days.
3.What payment methods are accepted for MAX903CSA+G002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX903CSA+G002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX903CSA+G002?
MAX903CSA+G002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX903CSA+G002 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 MAX903CSA+G002?
For technical support, including MAX903CSA+G002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX903CSA+G002 requirements.
6.How does Aetrix verify that MAX903CSA+G002 is sourced from the original manufacturer or authorized distributors?
All MAX903CSA+G002 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 MAX903CSA+G002 meets industry standards.
7.What is the process for return or replacement of MAX903CSA+G002?
All MAX903CSA+G002 units undergo pre-shipment inspection (PSI). If there is an issue with MAX903CSA+G002, 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 MAX903CSA+G002 part is unused and in its original packaging.
Return procedure for MAX903CSA+G002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX903CSA+G002 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.
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