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Analog Devices Inc./Maxim Integrated MAX9107ESA+
- Part No.:
- MAX9107ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX9107ESA+.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:391
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Product details
Overview
MAX9107ESA+ from Maxim Integrated is a dual high-speed, low-power voltage comparator designed for single +5V supply systems. It delivers 25ns propagation delay with 10mV input overdrive, consumes only 350µA per comparator (1.75mW), and features TTL-compatible outputs with internal 2mV hysteresis - used in A/D converter front-ends and threshold detection circuits.
For engineers reviewing the MAX9107ESA+ datasheet, MAX9107ESA+ pinout, MAX9107ESA+ application, or MAX9107ESA+ equivalent, key selection criteria include propagation delay vs. power trade-off, input common-mode range extending to ground, latch absence (vs. MAX9109), and SO-8 package compatibility with legacy board layouts.
Technical Context
The MAX9107ESA+ implements a bipolar process-based comparator core with rail-to-rail input capability (–0.2V to VCC – 1.5V) and guaranteed operation from 4.5V to 5.5V. Its internal hysteresis eliminates external feedback networks while ensuring clean switching on slow-moving signals.
Unlike the latched MAX9109, the MAX9107ESA+ provides two independent comparator channels without latch control logic. Its output stage is optimized for TTL-level interfacing, delivering VOH ≥ 3.0V at 100µA source and VOL ≤ 0.6V at 3.2mA sink - enabling direct connection to 74LS/74F logic families without pull-ups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 25ns at 10mV overdrive - enables sampling of >15MHz analog events in real-time discriminators. |
| Supply Current per Comparator | 350µA typical at VCC = 5.5V - supports battery-powered systems with <700µA total quiescent draw. |
| Input Offset Voltage | 1.6mV max over temperature - ensures accurate threshold detection down to ±2mV windows. |
| Input Common-Mode Range | –0.2V to VCC – 1.5V - allows direct sensing of signals referenced to ground or negative-biased transducers. |
| Output Compatibility | TTL-level VOH/VOL - interfaces directly with standard logic without external pull-up resistors or level shifters. |
| Hysteresis | 2mV internal - suppresses chatter on noisy inputs without requiring external resistor networks. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and automotive under-hood environments. |
Pinout & Package
MAX9107ESA+ is housed in an 8-pin SO (Small Outline) package (package code S8-2), with exposed pad not present and RoHS-compliant lead finish.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connection | Not internally bonded - must be left floating or tied to GND for mechanical stability; no electrical function. |
| 2 | OUTA | Channel A TTL-compatible output - sinks up to 3.2mA or sources 100µA; drives 74LS inputs directly. |
| 3 | GND | Analog/digital ground reference - requires low-inductance connection to PCB ground plane for noise immunity. |
| 4 | LE | No function - unused in MAX9107; differs from MAX9109 where LE controls latch transparency. |
| 5 | VCC | +4.5V to +5.5V supply - requires local 0.1µF ceramic decoupling capacitor placed within 2mm. |
| 6 | IN+ | Channel A noninverting input - accepts signals from –0.2V to VCC – 1.5V; high-impedance (IB ≤ 350nA). |
| 7 | IN– | Channel A inverting input - matched bias current to IN+ enables precision differential sensing. |
| 8 | NC | No Connection - identical to Pin 1; electrically isolated and not bonded. |
Key Features
| Feature | Design Value |
|---|---|
| 25ns propagation delay | Enables real-time comparison of fast analog transitions, such as zero-crossing detection in 20MHz clock recovery paths. |
| Internal 2mV hysteresis | Eliminates need for external positive feedback resistors, reducing BOM count and layout sensitivity to parasitic capacitance. |
| TTL-compatible outputs | Direct interface with legacy 74-series logic without pull-up resistors - simplifies inter-stage coupling in mixed-signal systems. |
| Single 4.5V–5.5V supply operation | Removes requirement for dual-rail supplies or charge pumps - ideal for +5V-only embedded controllers and data acquisition modules. |
| Input range includes ground | Supports direct sensing of unipolar sensor outputs (e.g., thermistor dividers, photodiode transimpedance amps) without level-shifting circuitry. |
Applications
| Battery-Powered Threshold Detection | A/D Converter Input Conditioning |
|---|---|
Use Scenario: Monitoring battery voltage against low-voltage cutoff thresholds in portable medical devices. IC Role / Device Role / Timing Role: Dual comparator providing independent high/low battery alerts with hysteresis to prevent oscillation near trip points. Use Value: 350µA per channel enables multi-threshold monitoring with <1mA total supply current - extending coin-cell life beyond 2 years. | Use Scenario: Preconditioning analog signals before SAR ADC sampling in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Fast comparator window detector that validates signal integrity prior to conversion, rejecting out-of-range transients. Use Value: 25ns response ensures transient rejection within one ADC sample period at 10MSPS rates - preventing corrupted digital samples. |
| Line Receiver for Digital Signals | Zero-Crossing Detector for AC Mains |
Use Scenario: Receiving differential RS-422 or LVDS-like signals in noise-prone factory-floor communication links. IC Role / Device Role / Timing Role: Single-ended reconstruction of differential pairs using resistor termination, with fast edge discrimination. Use Value: TTL output drive strength ensures reliable logic-level translation into FPGA I/O banks without additional buffers - reducing latency by 15ns. | Use Scenario: Detecting AC line zero crossings for phase-controlled dimmers and motor speed controllers. IC Role / Device Role / Timing Role: Precision comparator comparing rectified AC waveform to ground reference with minimal propagation skew. Use Value: Matched IN+/IN– input offset (≤1.6mV) and 25ns delay enable timing accuracy better than ±0.5° at 50Hz - critical for EMI reduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Slower (1.3µs propagation delay), higher supply current (1mA), no internal hysteresis, open-collector outputs requiring pull-ups. | Suitable for low-speed, cost-sensitive applications where timing precision and power are secondary. | Select LM393DR only when propagation delay >1µs is acceptable and board space permits external hysteresis resistors and pull-ups. |
| TLV3501CDR | Faster (4.5ns), rail-to-rail input, CMOS output (not TTL), higher supply current (5.5mA), requires external hysteresis. | Better for high-speed, low-voltage (2.7V–5.5V) systems needing sub-5ns response but lacking TTL bus compatibility. | Choose TLV3501CDR when interfacing with CMOS logic and system timing demands sub-10ns delay - not for direct TTL replacement. |
Compared with LM393DR and TLV3501CDR, the MAX9107ESA+ uniquely balances 25ns speed, TTL output drive, internal hysteresis, and 350µA power - making it optimal for +5V industrial signal conditioning where timing, simplicity, and compatibility are jointly constrained.
Availability
MAX9107ESA+ is available at Aetrix Electronics and suitable for battery-powered systems, A/D converter front-ends, and line receiver designs requiring stable component supply across extended production lifecycles.
Supply support for MAX9107ESA+ 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 industrial, communications, and computing applications - emphasizing performance, integration, and reliability.
The MAX9107ESA+ belongs to Maxim's high-speed comparator family targeting low-power, single-supply systems; it was engineered to replace legacy comparators like MAX907 while improving speed, power, and ease-of-use in +5V signal chain architectures.
FAQ
What is the maximum supply voltage rating for MAX9107ESA+?
The MAX9107ESA+ has an absolute maximum supply voltage of 6V (VCC to GND), but its specified operating range is 4.5V to 5.5V. Operation outside this range may cause parametric degradation or damage. The MAX9107ESA+ is not rated for 3.3V-only systems - use MAX9021 or similar for lower-voltage rails.
Does MAX9107ESA+ include an output latch function?
No, the MAX9107ESA+ does not include an output latch. That feature is exclusive to the MAX9109 variant. The MAX9107ESA+ provides two independent, transparent comparator outputs (OUTA and OUTB) with no latch-enable (LE) control - confirmed by pin configuration and functional description in the datasheet.
Can MAX9107ESA+ operate with input voltages below ground?
Yes, the MAX9107ESA+ supports input common-mode voltages down to –0.2V relative to GND, verified across the full –40°C to +85°C temperature range. This allows direct interfacing with transducers or op-amp stages that swing slightly negative - but sustained operation below –0.3V violates absolute maximum ratings.
What is the output drive capability of MAX9107ESA+?
The MAX9107ESA+ TTL-compatible outputs deliver VOH ≥ 3.0V at 100µA source current and VOL ≤ 0.6V at 3.2mA sink current. This meets standard 74LS logic thresholds and allows direct fan-out to up to 10 LS-TTL loads without external components - a key advantage over open-collector comparators.
Is MAX9107ESA+ pin-compatible with industry-standard dual comparators?
The MAX9107ESA+ in SO-8 package follows a nonstandard pinout: Pins 1 and 8 are NC, Pin 4 is unused (LE), and outputs are on Pins 2 and 7. It is not pin-compatible with LM393 or TLC372 - those place outputs on Pins 1 and 7 with GND on Pin 4. Board redesign is required for drop-in replacement.
MAX9107ESA+ 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:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- TTL
- Voltage - Supply, Single/Dual (±):
- 4.5V ~ 5.5V
- :
- 1.6mV @ 5V
- Voltage - Input Offset (Max):
- 0.125µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 700µA
- Current - Quiescent (Max):
- 86.02dB CMRR, 86.02dB PSRR
- CMRR, PSRR (Typ):
- 25ns
- Propagation Delay (Max):
- 2mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
MAX9107ESA+ FAQ
1.How can I place an order for MAX9107ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9107ESA+ 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 MAX9107ESA+ reliable?
The price and inventory of MAX9107ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9107ESA+ is usually 5 days.
3.What payment methods are accepted for MAX9107ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9107ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9107ESA+?
MAX9107ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9107ESA+ 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 MAX9107ESA+?
For technical support, including MAX9107ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9107ESA+ requirements.
6.How does Aetrix verify that MAX9107ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX9107ESA+ 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 MAX9107ESA+ meets industry standards.
7.What is the process for return or replacement of MAX9107ESA+?
All MAX9107ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX9107ESA+, 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 MAX9107ESA+ part is unused and in its original packaging.
Return procedure for MAX9107ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9107ESA+ Tags
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