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Renesas HA1-4905-5
- Part No.:
- HA1-4905-5
- Manufacturer:
- Renesas
- Category:
- Comparators
- Package:
- 16-CDIP (0.300", 7.62mm)
- Datasheet:
-
HA1-4905-5.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 16CERDIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,522
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Product details
Overview
HA1-4905-5 from Intersil is a monolithic quad precision comparator with 130ns response time, 2.0mV max offset voltage, and 10nA max offset current, operating from single +5V or dual ±15V supplies. It features current-driven outputs compatible with TTL/CMOS logic levels without external resistors and is used in threshold detection, zero-crossing circuits, and microprocessor analog interfaces within industrial test equipment.
For engineers reviewing the HA1-4905-5 datasheet, HA1-4905-5 pinout, HA1-4905-5 application, or HA1-4905-5 equivalent, this page delivers verified specifications, CERDIP package details, real-world interface design guidance, and validated alternative options for signal-level decision-making circuits requiring ground-sensing capability and low crosstalk.
Technical Context
The HA1-4905-5 employs a unique current-driven output stage referenced to VLOGIC+ and VLOGIC−, enabling direct compatibility with system logic supplies without pull-up/down resistors. Its input stage supports common-mode range from V− to (V+) − 2.4V and exhibits virtually no channel-to-channel crosstalk under simultaneous high-frequency operation.
It operates across 0°C to 75°C with ±15V analog supplies and independent +5V/0V logic supplies, maintaining 3.5V min VOH and 0.4V max VOL at 3mA load. Input bias current remains ≤150nA over full temperature range, and differential input resistance exceeds 250MΩ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Response Time | 130ns typical - enables accurate timing decisions for signals up to ~1 MHz in window or zero-crossing detection. |
| Offset Voltage | 2.0mV max at 25°C - ensures reliable detection of small analog signals near ground or reference thresholds. |
| Offset Current | 10nA max at 25°C - minimizes error in high-impedance sensor interfaces and precision level-shifting networks. |
| Supply Range | ±15V analog (V+/V−), +5V/0V logic (VLOGIC+/VLOGIC−) - supports mixed-signal systems without level translators. |
| Output Compatibility | Direct TTL/CMOS logic interfacing - eliminates external pull resistors and reduces board space in digital control paths. |
| Operating Temp | 0°C to 75°C - qualified for commercial-grade instrumentation, data acquisition modules, and embedded controller I/O. |
| Package | 16-lead CERDIP (F16.3) - hermetically sealed ceramic package with 85°C/W θJA for stable thermal performance. |
Pinout & Package
HA1-4905-5 is supplied in a 16-lead Ceramic Dual-In-Line Package (CERDIP), MIL-STD-1835 GDIP1-T16 (F16.3), with frit-seal construction for moisture resistance and long-term reliability in industrial environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 8, 10, 12, 14, 16 | Comparator Inputs (+IN/−IN) | Four independent differential input pairs: Pins 1/2 (+IN1/−IN1), 4/5 (+IN2/−IN2), 9/10 (+IN3/−IN3), 13/14 (+IN4/−IN4). |
| 2, 4, 6, 7, 9, 11, 13, 15 | Comparator Outputs (OUT1–OUT4) | Active pull-up/pull-down outputs: Pins 2 (OUT1), 6 (OUT2), 11 (OUT3), 15 (OUT4); each directly drives logic loads. |
| V+, V− | Analog Supply Terminals | Pins 16 (V+) and 8 (V−) set input common-mode range and internal bias; support ±15V operation. |
| VLOGIC+, VLOGIC− | Logic Supply Terminals | Pins 12 (VLOGIC+) and 7 (VLOGIC−) define output logic swing; enable +5V/0V or ±15V logic referencing. |
| VL+, VL− | Output Level Control | Pins 1 (VL+) and 3 (VL−) are unused on HA1-4905-5; reserved for alternate output configurations not implemented in this variant. |
Key Features
| Feature | Design Value |
|---|---|
| Ground-sensing input stage | Common-mode range extends to V−, enabling accurate detection of signals referenced to system ground in single-supply systems. |
| No external output resistors required | Current-driven output architecture eliminates need for pull-up/pull-down components, reducing BOM count and layout complexity. |
| Virtually zero crosstalk | Independent channel operation ensures output stability even when all four comparators switch simultaneously at high frequency. |
| Single/dual supply flexibility | Operates from +5V only (V+ = VLOGIC+ = 5V, V− = VLOGIC− = GND) or ±15V analog + 5V logic - simplifies power domain partitioning. |
| RoHS-compliant packaging | CERDIP package meets Pb-free plus anneal requirements (IPC/JEDEC J-STD-020), supporting lead-free reflow assembly. |
Applications
| Threshold Detector | Zero Crossing Detector |
|---|---|
Use Scenario: Monitoring battery voltage against a fixed reference to trigger low-voltage shutdown in portable instrumentation. IC Role / Device Role / Timing Role: Quad comparator compares four independent analog inputs to programmable thresholds generated by DAC or resistor dividers. Use Value: 2.0mV offset ensures sub-10mV detection accuracy; 130ns response allows real-time reaction to fast transients during power sequencing. |
Use Scenario: Detecting AC line zero crossings in motor control feedback loops for synchronized PWM timing. IC Role / Device Role / Timing Role: One comparator channel configured as inverting Schmitt trigger with hysteresis to reject noise-induced false triggers. Use Value: Input common-mode range down to V− enables direct connection to AC-coupled signals; low offset prevents phase shift in timing edges. |
| Window Detector | Analog Interface for Microprocessors |
Use Scenario: Industrial process monitoring where sensor output must stay within upper/lower limits to avoid alarm conditions. IC Role / Device Role / Timing Role: Two comparators per channel (e.g., HA1-4905-5 channels 1 & 2) form high/low boundaries; third channel combines outputs via external logic. Use Value: 10nA offset current prevents drift-induced false alarms in high-resistance thermistor or RTD bridges over temperature. |
Use Scenario: Digitizing analog sensor outputs in microcontroller-based environmental monitoring nodes using successive approximation. IC Role / Device Role / Timing Role: Comparator array interfaces with external DAC to implement flash or staircase ADC architectures. Use Value: Output logic levels match MCU GPIO voltage thresholds directly; no level-shifter ICs or discrete FETs needed in signal path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad precision comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339N | Slower 1.3µs response, higher 2mV typical offset, open-collector outputs require external pull-ups. | Lower cost for non-critical timing; unsuitable for >100kHz window detection or ground-referenced sensing without level shifting. | Select LM339N only when speed and input common-mode range are not design constraints and BOM cost dominates. |
| TLV3704IDR | Rail-to-rail input, 1.5µs response, CMOS output, 1.8–16V single-supply operation, but 3.5mV max offset. | Better for low-voltage battery-powered systems; lacks dual-supply flexibility and ground-sensing capability of HA1-4905-5. | Choose TLV3704IDR for modern ultra-low-power designs where ±15V operation and sub-mV offset are unnecessary. |
Compared with LM339N and TLV3704IDR, HA1-4905-5 uniquely delivers 130ns speed with ground-sensing inputs and logic-compatible outputs in a hermetic CERDIP package - making it irreplaceable in legacy test equipment, military-qualified analog front-ends, and high-stability oscillator designs requiring minimal drift.
Availability
HA1-4905-5 is available at Aetrix Electronics and suitable for industrial test equipment, data acquisition modules, and embedded microprocessor analog interfaces requiring stable component supply across extended lifecycle programs.
Supply support for HA1-4905-5 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
Intersil Corporation, now part of Renesas Electronics, designs high-performance analog and mixed-signal ICs for precision signal conditioning, power management, and interface applications.
The HA-4900 series was developed specifically for high-speed, low-error analog-to-digital decision-making in mixed-signal instrumentation - emphasizing ground-referenced sensing, logic-level compatibility, and channel isolation in harsh environments.
FAQ
What is the maximum operating temperature for HA1-4905-5?
The HA1-4905-5 is rated for operation from 0°C to 75°C ambient temperature. This commercial-grade specification distinguishes it from the HA1-4900-2 and HA1-4902-2 variants, which operate from −55°C to +125°C. Exceeding 75°C may cause parametric degradation or failure; thermal design must maintain junction temperature below 175°C using the specified θJA of 85°C/W.
Can HA1-4905-5 operate from a single +5V supply?
Yes, HA1-4905-5 supports single-supply operation: connect V+ and VLOGIC+ to +5V, and V− and VLOGIC− to ground. Input common-mode range then extends from ground to +2.6V, enabling detection of signals referenced to system ground. Output logic levels remain compatible with standard TTL/CMOS inputs without external components.
Does HA1-4905-5 require external pull-up resistors on its outputs?
No, HA1-4905-5 does not require external pull-up resistors. Its active pull-up/pull-down output stage is driven by internal current sources referenced to VLOGIC+ and VLOGIC−, delivering guaranteed VOH ≥ 3.5V and VOL ≤ 0.4V at 3mA load - fully compatible with TTL and CMOS logic families without added components.
What is the pinout configuration for HA1-4905-5 in CERDIP package?
HA1-4905-5 uses a 16-lead CERDIP (F16.3) with top-view pin numbering: Pin 1 = VL+, Pin 2 = OUT1, Pin 3 = VL−, Pin 4 = +IN2, Pin 5 = −IN2, Pin 6 = OUT2, Pin 7 = VLOGIC−, Pin 8 = V−, Pin 9 = +IN3, Pin 10 = −IN3, Pin 11 = OUT3, Pin 12 = VLOGIC+, Pin 13 = +IN4, Pin 14 = −IN4, Pin 15 = OUT4, Pin 16 = V+. VL+ and VL− are unused in this variant.
How does HA1-4905-5 achieve low channel-to-channel crosstalk?
HA1-4905-5 achieves virtually no crosstalk through monolithic isolation between comparator channels and separate output driver stages referenced to dedicated VLOGIC+ and VLOGIC− rails. Layout and circuit design prevent ground coupling between analog and digital sections, allowing simultaneous switching of all four comparators without affecting output logic states - confirmed in datasheet testing up to 100kHz.
HA1-4905-5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-CDIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- CMOS, Push-Pull
- Voltage - Supply, Single/Dual (±):
- 5V ~ 15V, ±2.5V ~ 7.5V
- :
- 7.5mV @ ±15V
- Voltage - Input Offset (Max):
- 0.15µA @ ±15V
- Current - Input Bias (Max):
- 50mA
- Current - Output (Typ):
- 20mA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 75°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 16-CERDIP
HA1-4905-5 FAQ
1.How can I place an order for HA1-4905-5 through Aetrix?
Please submit a Request for Quotation (RFQ) for HA1-4905-5 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 HA1-4905-5 reliable?
The price and inventory of HA1-4905-5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HA1-4905-5 is usually 5 days.
3.What payment methods are accepted for HA1-4905-5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HA1-4905-5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HA1-4905-5?
HA1-4905-5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HA1-4905-5 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 HA1-4905-5?
For technical support, including HA1-4905-5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HA1-4905-5 requirements.
6.How does Aetrix verify that HA1-4905-5 is sourced from the original manufacturer or authorized distributors?
All HA1-4905-5 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 HA1-4905-5 meets industry standards.
7.What is the process for return or replacement of HA1-4905-5?
All HA1-4905-5 units undergo pre-shipment inspection (PSI). If there is an issue with HA1-4905-5, 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 HA1-4905-5 part is unused and in its original packaging.
Return procedure for HA1-4905-5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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