Analog Devices Inc./Maxim Integrated MAX9107ESA+T
- Part No.:
- MAX9107ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX9107ESA+T.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:4,230
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Product details
Overview
The MAX9107ESA+T from Maxim Integrated is a dual, high-speed, low-power voltage comparator IC 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 - enabling clean switching in battery-powered threshold detection circuits.
For engineers reviewing the MAX9107ESA+T datasheet, MAX9107ESA+T pinout, MAX9107ESA+T application, or MAX9107ESA+T equivalent, this device is selected for precision timing-critical comparators where low supply current, ground-sensing input range (-0.2V to VCC–1.5V), and latch-free dual-channel operation are required.
Technical Context
The MAX9107ESA+T implements a bipolar process-based comparator core with fixed internal hysteresis (2mV) to suppress oscillation during slow input transitions. Its input common-mode range extends from -0.2V below ground to within 1.5V of VCC, supporting rail-to-rail input sensing without external level-shifting.
Each comparator channel features independent IN+ and IN- inputs, TTL-compatible push-pull output stages (VOH ≥ 3.0V at 100µA, VOL ≤ 0.6V at 3.2mA), and operates across -40°C to +85°C with guaranteed 4.5V–5.5V supply compliance and 500µV typical input offset voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 25ns at 10mV overdrive - enables sub-40MHz sampling decision timing |
| Supply Current per Comparator | 350µA (1.75mW at 5V) - supports ultra-low-power battery operation |
| Input Offset Voltage | Max 4.0mV over temperature - ensures stable trip-point accuracy in discriminators |
| Input Common-Mode Range | -0.2V to VCC–1.5V - allows direct ground-referenced signal comparison |
| Hysteresis | 2mV input-referred - eliminates external feedback resistors and prevents chatter |
| Output Compatibility | TTL logic levels (VOH ≥ 3.0V, VOL ≤ 0.6V) - drives standard logic without pull-ups |
| Operating Temperature | -40°C to +85°C - qualified for industrial and automotive-adjacent environments |
Pinout & Package
MAX9107ESA+T is housed in an 8-pin SO (Small Outline) package (package code S8-2), RoHS-compliant, with 1.27mm lead pitch and exposed pad not present. Pin 1 is marked by a beveled corner or dot.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N.C. | No internal connection - must be left unconnected or grounded per layout best practice |
| 2 | OUTA | Channel A TTL-compatible output - directly interfaces with 74LS/74F logic or microcontroller inputs |
| 3 | GND | Analog/digital ground reference - requires low-inductance connection to PCB ground plane |
| 4 | LE | Latch Enable - unused on MAX9107; tied low or left open (not applicable to dual version) |
| 5 | VCC | Positive supply (4.5V–5.5V) - requires local 0.1µF ceramic decoupling capacitor |
| 6 | IN+ | Channel A noninverting input - accepts signals down to -0.2V for ground-level sensing |
| 7 | IN- | Channel A inverting input - differential pair input with 125nA max bias current |
| 8 | N.C. | No internal connection - must be left unconnected or grounded |
Key Features
| Feature | Design Value |
|---|---|
| 25ns propagation delay | Enables real-time response in high-speed zero-crossing and line receiver applications |
| Internal 2mV hysteresis | Eliminates need for external positive feedback resistors and prevents metastability |
| Ground-sensing input range | Supports direct comparison of signals referenced to system ground without level shifters |
| TTL-compatible push-pull outputs | Drives standard logic loads without external pull-up resistors or voltage translators |
| Low 350µA supply current | Extends battery life in portable instrumentation and IR data link receivers |
Applications
| Battery-Powered Threshold Detector | A/D Converter Input Conditioning |
|---|---|
|
Use Scenario: Detecting low-voltage battery depletion or sensor trip thresholds in handheld medical devices. IC Role / Device Role / Timing Role: Dual comparator providing independent high/low battery alerts with hysteresis to prevent chatter near cutoff. Use Value: 350µA per channel minimizes quiescent drain; -0.2V input range enables direct monitoring of Li-ion cell voltage down to 2.5V. |
Use Scenario: Preconditioning analog signals before SAR or sigma-delta ADC sampling. IC Role / Device Role / Timing Role: Fast comparator generating precise timing strobes or windowed enable signals synchronized to ADC conversion cycles. Use Value: 25ns delay ensures sub-40MHz sampling edge alignment; TTL outputs interface directly with ADC control logic. |
| Line Receiver for Industrial Bus | Zero-Crossing Detector for AC Control |
|
Use Scenario: Converting differential or single-ended RS-422/RS-485 bus signals into clean digital logic levels. IC Role / Device Role / Timing Role: Dual comparator acting as differential receiver front-end with noise-immune hysteresis. Use Value: 2mV hysteresis rejects EMI-induced glitches; wide common-mode range accommodates bus common-mode offsets up to ±1.5V. |
Use Scenario: Detecting AC waveform zero crossings for phase-controlled dimmers or motor commutation. IC Role / Device Role / Timing Role: Precision comparator comparing sine wave against ground reference to generate synchronous trigger pulses. Use Value: Ground-inclusive input range (-0.2V) ensures reliable detection at true 0V crossing; 25ns delay minimizes phase error in 50/60Hz systems. |
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 (1.2mA), no internal hysteresis, open-collector outputs requiring pull-ups | Suitable for cost-sensitive, non-critical timing applications where speed and power are secondary | Select LM393DR only when 25ns timing and 350µA operation are unnecessary and board space allows external pull-up resistors |
| TLV3501CDR | Faster (4.5ns), rail-to-rail input, CMOS output (not TTL), higher supply current (8.5mA), no internal hysteresis | Preferred for high-speed, low-voltage (2.7V–5.5V) systems needing nanosecond response but accepting external hysteresis design | Choose TLV3501CDR when sub-10ns delay is mandatory and system uses CMOS logic; avoid if TTL compatibility or ultra-low power is required |
Compared with LM393DR and TLV3501CDR, the MAX9107ESA+T uniquely combines TTL compatibility, internal hysteresis, 25ns speed, and 350µA power in a dual configuration - making it optimal for industrial line receivers and battery-operated discriminators where all four attributes are simultaneously needed.
Availability
MAX9107ESA+T is available at Aetrix Electronics and suitable for battery-powered systems, A/D converter front-ends, and line receiver designs requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for MAX9107ESA+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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX9107ESA+T belongs to Maxim's precision high-speed comparator family, engineered specifically for low-power, single-supply systems demanding fast, chatter-free decision-making with minimal external components.
FAQ
What is the maximum supply voltage rating for the MAX9107ESA+T?
The MAX9107ESA+T has an absolute maximum supply voltage (VCC to GND) of 6V. However, its specified operating range is strictly 4.5V to 5.5V - operation outside this window may cause parametric degradation or functional failure. The 6V limit applies only to short-duration stress conditions, not continuous operation. Always regulate VCC to 5.0V ±5% for guaranteed performance of the MAX9107ESA+T.
Does the MAX9107ESA+T include internal hysteresis, and can it be disabled?
Yes, the MAX9107ESA+T incorporates a fixed 2mV internal hysteresis to ensure clean output transitions with slow-moving inputs - no external components are needed. This hysteresis cannot be disabled; it is hardwired into the comparator core. If adjustable hysteresis is required, external positive feedback must be added, though doing so overrides the internal value and alters trip-point symmetry. The MAX9107ESA+T relies on this built-in feature for robustness in noisy environments.
What is the function of Pin 4 (LE) on the MAX9107ESA+T?
Pin 4 on the MAX9107ESA+T is labeled LE (Latch Enable), but it is not functional in the MAX9107 variant - only the MAX9109 includes an internal latch. On the MAX9107ESA+T, Pin 4 is a no-connect (N.C.) terminal. It must be left unconnected or tied to GND per layout guidelines; driving it high or low has no effect on comparator operation. This pin exists for package compatibility across the MAX9107/MAX9108/MAX9109 family but is inactive in the dual MAX9107ESA+T.
Can the MAX9107ESA+T operate with input voltages below ground?
Yes, the MAX9107ESA+T supports an input common-mode range extending to -0.2V below ground (GND – 0.2V), verified across the full -40°C to +85°C temperature range. This allows direct comparison of signals referenced to system ground - such as battery voltage monitors or zero-crossing detectors - without level-shifting circuitry. Inputs driven below -0.2V risk exceeding absolute maximum ratings and require current limiting to ≤20mA to avoid damage.
Is the MAX9107ESA+T pin-compatible with other packages of the same part number?
No - the MAX9107ESA+T specifically denotes the 8-pin SO package (S8-2). It is not pin-compatible with the MAX9107EKA+T (8-pin SOT23-8), which has a different pinout: VCC and GND are swapped, and output/input assignments differ. Using the wrong package without verifying pin mapping will result in incorrect operation or damage. Always match the suffix: ESA+ = SO, EKA+T = SOT23-8. Both are MAX9107 devices but require distinct PCB footprints and routing.
MAX9107ESA+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:
- 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+T FAQ
1.How can I place an order for MAX9107ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9107ESA+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 MAX9107ESA+T reliable?
The price and inventory of MAX9107ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9107ESA+T is usually 5 days.
3.What payment methods are accepted for MAX9107ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9107ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9107ESA+T?
MAX9107ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9107ESA+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 MAX9107ESA+T?
For technical support, including MAX9107ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9107ESA+T requirements.
6.How does Aetrix verify that MAX9107ESA+T is sourced from the original manufacturer or authorized distributors?
All MAX9107ESA+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 MAX9107ESA+T meets industry standards.
7.What is the process for return or replacement of MAX9107ESA+T?
All MAX9107ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9107ESA+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 MAX9107ESA+T part is unused and in its original packaging.
Return procedure for MAX9107ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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