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Analog Devices Inc. ADCMP371AKSZ-REEL7
- Part No.:
- ADCMP371AKSZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
ADCMP371AKSZ-REEL7.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:17,147
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Product details
Overview
ADCMP371AKSZ-REEL7 from Analog Devices is a general-purpose comparator with push-pull output, 9 mV input offset voltage, 4 µA supply current, and rail-to-rail common-mode input range. It operates from 2.25 V to 5.5 V and supports –40°C to +85°C ambient conditions, making it suitable for battery management systems and low-voltage portable equipment.
For engineers reviewing the ADCMP371AKSZ-REEL7 datasheet, ADCMP371AKSZ-REEL7 pinout, ADCMP371AKSZ-REEL7 application, or ADCMP371AKSZ-REEL7 equivalent, key selection considerations include output stage type (push-pull vs. open-drain), 22 V input tolerance compatibility, propagation delay under 5 µs at 10 mV overdrive, and SC70 package constraints for space-constrained designs.
Technical Context
The ADCMP371AKSZ-REEL7 implements a precision comparator core with internal PMOS pull-up and NMOS pull-down transistors enabling true push-pull operation-no external pull-up resistor required. Its input stage supports rail-to-rail common-mode range and tolerates up to 22 V on IN+ and IN− independent of VCC.
Propagation delay is specified at 5 µs (10 mV overdrive) and 2 µs (100 mV overdrive), with output rise/fall times of 30 ns/45 ns into 15 pF. Input bias current is 50 nA and input offset current is 150 nA, supporting high-impedance sensing applications without significant error contribution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.25 V to 5.5 V - enables direct interface with Li-ion, 3.3 V, and 5 V logic domains. |
| Supply Current | 4 µA typical - allows multi-year operation in coin-cell–powered voltage detectors. |
| Input Offset Voltage | 9 mV max - sets minimum detectable differential voltage without trimming. |
| Input Common-Mode Range | Rail-to-rail (0 V to VCC) - supports sensing across full supply range including near-ground signals. |
| Output Type | Push-pull - eliminates need for external pull-up and ensures defined HIGH/LOW states. |
| Propagation Delay | 5 µs at 10 mV overdrive - determines minimum response time for fast threshold detection. |
| Input Voltage Tolerance | −0.3 V to +25 V - permits direct connection to unregulated battery rails or higher-voltage analog nodes. |
Pinout & Package
ADCMP371AKSZ-REEL7 is housed in a 5-lead SC70 (KS-5) package per JEDEC MO-203-AA, measuring 2.00 mm × 1.25 mm × 0.90 mm with 0.65 mm lead pitch and coplanarity ≤ 0.10 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: IN+ | Noninverting input | Accepts reference or signal source; supports rail-to-rail common-mode range and 25 V absolute max rating. |
| 2: GND | Ground reference | Primary return path for supply and input/output currents; must be low-impedance for stable offset performance. |
| 3: IN− | Inverting input | Accepts threshold or feedback signal; matched bias current minimizes common-mode error. |
| 4: OUT | Push-pull output | Drives logic-high to ~0.8×VCC and logic-low to ≤0.4 V at 500 µA sink/source; no external pull-up needed. |
| 5: VCC | Positive supply | Power input for internal circuitry; decoupling capacitor recommended within 1 cm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Push-pull output architecture | Eliminates external pull-up resistor, reduces BOM count, and guarantees defined logic levels under all load conditions. |
| 22 V input voltage tolerance | Enables direct monitoring of unregulated battery voltages (e.g., 12 V lead-acid or 3S Li-ion stacks) without level-shifting circuitry. |
| 4 µA quiescent current | Supports >10-year battery life in always-on voltage supervision circuits using CR2032 cells. |
| Rail-to-rail input common-mode range | Allows accurate comparison of signals down to 0 V or up to VCC, critical for low-dropout LDO monitoring and charge termination. |
| –40°C to +85°C operation | Validated performance across industrial temperature range without derating or calibration. |
Applications
| Battery Voltage Monitoring | Low-Power ADC Reference Supervision |
|---|---|
Use Scenario: Detecting undervoltage lockout (UVLO) or overvoltage conditions in single-cell Li-ion or alkaline battery packs. IC Role / Device Role / Timing Role: Comparator generating digital flag when battery voltage crosses preset thresholds. Use Value: Leverages 22 V input tolerance to monitor raw battery voltage directly and 4 µA supply current to minimize self-discharge during standby. | Use Scenario: Validating reference voltage stability before initiating ADC conversion cycles in energy-harvesting sensor nodes. IC Role / Device Role / Timing Role: Threshold detector asserting "ready" signal only when reference settles within ±9 mV window. Use Value: Uses 9 mV max input offset and rail-to-rail input to ensure reliable detection across full 0–VCC reference range. |
| Portable Equipment Power Sequencing | Low-Voltage Microcontroller Reset Generation |
Use Scenario: Enabling power rails in sequence based on upstream supply readiness in handheld medical devices. IC Role / Device Role / Timing Role: Dual-threshold comparator controlling enable signals for DC/DC converters via hysteresis configuration. Use Value: Push-pull output drives enable pins directly; propagation delay <5 µs ensures tight timing control between stages. | Use Scenario: Generating clean reset pulses for microcontrollers operating at 1.8 V or 3.3 V when main supply drops below safe margin. IC Role / Device Role / Timing Role: Precision UVLO circuit asserting active-low reset until VCC rises above programmable threshold. Use Value: 2.25 V minimum supply allows operation during brown-out recovery; 0.4 V output low ensures solid logic LOW to MCU reset pin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3701DBVR | Open-drain output; 1.8 V to 5.5 V supply; 360 nA supply current; 5 mV offset. | Requires external pull-up; lower offset but higher current; not 22 V input tolerant. | Choose when ultra-low offset dominates over input voltage range and power budget allows >300× higher quiescent current. |
| MAX9021AXK+T | Push-pull output; 1.6 V to 5.5 V supply; 1.2 µA supply current; 7 mV offset; SC70-5 package. | Lower supply current and offset, but only 6 V absolute max input rating limits use with >6 V sources. | Choose when supply voltage stays ≤5.5 V and input nodes are fully regulated, prioritizing lowest possible current draw. |
Compared with TLV3701DBVR and MAX9021AXK+T, ADCMP371AKSZ-REEL7 uniquely combines 22 V input tolerance, push-pull output, and sub-5 µA supply current-enabling direct high-voltage monitoring in ultra-low-power portable systems without auxiliary components or voltage scaling.
Availability
ADCMP371AKSZ-REEL7 is available at Aetrix Electronics and suitable for battery management systems, portable medical devices, and low-voltage industrial sensors requiring stable component supply and RoHS-compliant packaging.
Supply support for ADCMP371AKSZ-REEL7 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
Analog Devices is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
The ADCMP37x series was designed specifically for ultra-low-power, high-voltage-tolerant comparator applications in portable and battery-operated equipment where size, power, and robustness are critical.
FAQ
What is the maximum input voltage the ADCMP371AKSZ-REEL7 can tolerate on its IN+ and IN− pins?
The ADCMP371AKSZ-REEL7 supports an absolute maximum input voltage of −0.3 V to +25 V on both IN+ and IN− pins, independent of VCC. This 22 V tolerance above ground enables direct connection to unregulated battery terminals or higher-voltage analog nodes without external protection circuitry-confirmed in the Absolute Maximum Ratings table of the Rev. D datasheet.
Does the ADCMP371AKSZ-REEL7 require an external pull-up resistor on its output?
No, the ADCMP371AKSZ-REEL7 features a push-pull output stage with internal PMOS and NMOS transistors, eliminating the need for an external pull-up resistor. Its output actively drives HIGH to ~0.8×VCC and LOW to ≤0.4 V at 500 µA, ensuring defined logic states under all load conditions-unlike the open-drain ADCMP370 variant which requires external pull-up.
What is the typical supply current consumption of the ADCMP371AKSZ-REEL7 at 3.3 V?
The ADCMP371AKSZ-REEL7 draws 4 µA typical supply current across its full operating voltage range (2.25 V to 5.5 V), including at 3.3 V. This value is confirmed in Table 1 of the Rev. D datasheet under "Supply Current" and is validated across temperature (−40°C to +85°C), making it suitable for decade-long operation in coin-cell–powered applications.
Can the ADCMP371AKSZ-REEL7 operate with a 1.8 V supply?
No, the ADCMP371AKSZ-REEL7 has a minimum supply voltage of 2.25 V as specified in the "VCC Operating Voltage Range" parameter (Table 1, Rev. D datasheet). Operation below 2.25 V is not guaranteed and may result in undefined output behavior or failure to meet propagation delay and offset specifications.
What package type and dimensions does the ADCMP371AKSZ-REEL7 use?
The ADCMP371AKSZ-REEL7 uses a 5-lead SC70 package (JEDEC MO-203-AA, Analog Devices KS-5), measuring 2.00 mm × 1.25 mm × 0.90 mm with 0.65 mm lead pitch. Its outline dimensions, coplanarity (≤0.10 mm), and thermal impedance (146°C/W) are fully documented in Figures 23 and Table 2 of the Rev. D datasheet.
ADCMP371AKSZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 2.25V ~ 5.5V
- :
- 9mV @ 5.5V
- Voltage - Input Offset (Max):
- 0.05µA @ 5.5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 7µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 5µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SC-70-5
ADCMP371AKSZ-REEL7 FAQ
1.How can I place an order for ADCMP371AKSZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADCMP371AKSZ-REEL7 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 ADCMP371AKSZ-REEL7 reliable?
The price and inventory of ADCMP371AKSZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADCMP371AKSZ-REEL7 is usually 5 days.
3.What payment methods are accepted for ADCMP371AKSZ-REEL7?
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4.How is shipping managed for ADCMP371AKSZ-REEL7?
ADCMP371AKSZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADCMP371AKSZ-REEL7 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 ADCMP371AKSZ-REEL7?
For technical support, including ADCMP371AKSZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADCMP371AKSZ-REEL7 requirements.
6.How does Aetrix verify that ADCMP371AKSZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADCMP371AKSZ-REEL7 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 ADCMP371AKSZ-REEL7 meets industry standards.
7.What is the process for return or replacement of ADCMP371AKSZ-REEL7?
All ADCMP371AKSZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADCMP371AKSZ-REEL7, 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 ADCMP371AKSZ-REEL7 part is unused and in its original packaging.
Return procedure for ADCMP371AKSZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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