My Inquiry
My Account
Renesas UPC1251GR(5)-9LG-E1-A
- Part No.:
- UPC1251GR(5)-9LG-E1-A
- Manufacturer:
- Renesas
- Category:
- Motor Drivers, Controllers
- Package:
- -
- Datasheet:
-
UPC1251GR(5)-9LG-E1-A.pdf
- Description:
- LINEAR IC
- Quantity:
- Payment:
- Shipping:
Inventory:1,342
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
UPC1251GR(5)-9LG-E1-A from Renesas Electronics is a dual operational amplifier optimized for single-supply operation with rail-to-rail output swing down to V− (GND), ±2 mV typical input offset voltage, 100,000 typical large-signal voltage gain, and AEC-Q100 compliance for automotive-grade reliability. It serves as a precision signal conditioning front-end in battery-powered sensor interfaces and low-voltage analog monitoring circuits.
For engineers reviewing the UPC1251GR(5)-9LG-E1-A datasheet, UPC1251GR(5)-9LG-E1-A pinout, UPC1251GR(5)-9LG-E1-A application, or UPC1251GR(5)-9LG-E1-A equivalent, key selection criteria include its GND-referenced common-mode input range (0 V to V+ − 1.5 V), 1.2 mA typical supply current at +5 V, class-C push-pull output stage enabling low-quiescent-current operation, and TSSOP-8 package compatibility with space-constrained PCB layouts.
Technical Context
The UPC1251GR(5)-9LG-E1-A implements a dual-channel, internally frequency-compensated op-amp architecture with independent input stages referenced to V− (GND) and an output stage utilizing a class-C push-pull configuration biased by a 50 μA constant current source. Its design enables stable operation from +3 V to +30 V single supply or ±1.5 V to ±15 V split supply.
It features output short-circuit protection, 70 dB typical CMRR and SVRR at 25 °C, and maintains functional performance across −40 °C to +125 °C ambient temperature. The device supports both inverting and non-inverting configurations without external level-shifting components due to its V−-to-(V+ − 1.5 V) common-mode input range and GND-level output capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +3 V to +30 V (single supply); ±1.5 V to ±15 V (split supply) - enables direct integration into 3.3 V, 5 V, and 12 V systems without level translation. |
| Input Offset Voltage | ±2 mV (typical) - ensures ≤2 mV DC error in precision DC-coupled amplification paths such as thermistor or strain gauge signal conditioning. |
| Large Signal Voltage Gain | 100,000 (typical) - delivers ≥100 dB open-loop gain for high-accuracy closed-loop gain setting with minimal error. |
| Common-Mode Input Range | 0 V to V+ − 1.5 V (typical) - allows direct sensing of signals referenced to ground, eliminating need for input biasing resistors. |
| Output Voltage Swing | 0 V to V+ − 1.5 V (typical, RL = 2 kΩ) - provides near-rail output drive for ADC input buffering with minimal headroom loss. |
| Supply Current per Channel | 1.2 mA (typical, V+ = +5 V) - supports always-on, low-power analog monitoring in battery-operated automotive ECUs and IoT edge nodes. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive applications and industrial control environments. |
Pinout & Package
UPC1251GR(5)-9LG-E1-A is housed in an 8-pin plastic TSSOP package (JEITA code P-TSSOP8-0225-0.65, Renesas code PTSP0008JD-A), measuring 3.15 mm × 4.40 mm × 1.20 mm max, with 0.65 mm lead pitch and gull-wing leads. This compact surface-mount package supports automated assembly and thermal performance up to 183 °C/W junction-to-ambient resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel 1) | Accepts differential input signal; referenced to V− (GND); supports common-mode voltages from 0 V to V+ − 1.5 V. |
| 2 | Non-Inverting Input (Channel 1) | Accepts differential input signal; same common-mode range as Pin 1; used for unity-gain buffer or non-inverting amplifier configurations. |
| 3 | Output (Channel 1) | Class-C push-pull output capable of sourcing 20–40 mA and sinking 10–20 mA; swings from GND to V+ − 1.5 V. |
| 4 | V− (Ground) | Power return reference for both channels; must be connected directly to system ground plane for noise immunity and stability. |
| 5 | Non-Inverting Input (Channel 2) | Independent second channel input; identical electrical characteristics and common-mode range as Pin 2. |
| 6 | Inverting Input (Channel 2) | Independent second channel input; identical electrical characteristics and common-mode range as Pin 1. |
| 7 | Output (Channel 2) | Second independent output; shares same output stage architecture and drive capability as Pin 3. |
| 8 | V+ | Positive supply rail; accepts +3 V to +30 V; decoupling capacitor (≥0.1 μF ceramic) required adjacent to this pin. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 2 qualification | Validated for automotive applications requiring operation from −40 °C to +105 °C case temperature (Grade 2), including engine control and body electronics. |
| GND-referenced input and output | Eliminates need for input bias networks or output level shifters in single-supply systems, reducing BOM count and PCB area. |
| Internal frequency compensation | Ensures unity-gain stability without external compensation components, simplifying design for standard gain configurations (e.g., gain ≥ 1). |
| Output short-circuit protection | Withstands indefinite short to V− (GND); limits fault current to prevent thermal runaway during wiring errors or connector shorts. |
| Low quiescent current | 0.7–1.2 mA total supply current enables use in always-on subsystems where power budget is constrained to <2 mW per channel. |
Applications
| Automotive Cabin Temperature Sensor Interface | Industrial 4–20 mA Loop Receiver |
|---|---|
Use Scenario: Amplifying low-level output from NTC thermistors mounted in HVAC ducts or seat climate modules. IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier front-end, with one channel for signal gain and the other for reference voltage buffering. Use Value: ±2 mV input offset ensures ≤0.1 °C measurement error over full temperature range; GND-referenced inputs simplify connection to thermistor divider networks. |
Use Scenario: Converting 4–20 mA loop current to 0.2–1.0 V or 1–5 V analog voltage for microcontroller ADC sampling. IC Role / Device Role / Timing Role: Precision current-to-voltage converter using matched feedback resistor, with second channel providing buffered reference for ADC reference rail. Use Value: 100,000 voltage gain ensures accurate scaling with <0.5% gain error; 120 dB channel separation prevents crosstalk between signal and reference paths. |
| Portable Medical Pulse Oximeter Analog Front-End | Smart Home CO/Smoke Detector Signal Conditioning |
Use Scenario: Amplifying weak photodiode currents from red/IR LEDs in wearable pulse oximetry sensors. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) for photodiode current conversion, followed by DC-blocking and gain-stage amplification. Use Value: Low 5 nA input offset current minimizes dark-current-induced baseline drift; 1.2 mA supply current extends battery life in coin-cell-powered devices. |
Use Scenario: Conditioning analog outputs from electrochemical CO sensors or piezoresistive smoke detection elements. IC Role / Device Role / Timing Role: Dual-stage signal conditioner: first channel for sensor excitation and offset nulling, second for filtered output amplification. Use Value: −40 °C to +125 °C operating range supports deployment in unconditioned attics or garages; AEC-Q100 compliance ensures long-term reliability in safety-critical alarms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV358IDR | Higher input bias current (1 pA vs. 45 nA typ.), wider supply range (+2.7 V to +5.5 V only), no AEC-Q100 qualification. | Targeted at consumer-grade portable electronics; lacks automotive temperature and reliability validation. | Select when cost sensitivity outweighs automotive qualification needs and supply voltage is limited to 3.3 V/5 V systems. |
| TSV912IYDT | Lower input offset voltage (1.5 mV typ.), rail-to-rail input/output, but higher supply current (850 μA/channel) and no short-circuit protection. | Optimized for high-speed, low-noise audio and active filter designs; unsuitable for fault-prone industrial wiring environments. | Select when ultra-low offset and full rail-to-rail swing are mandatory, and output fault conditions are actively managed externally. |
Compared with LMV358IDR and TSV912IYDT, the UPC1251GR(5)-9LG-E1-A uniquely balances AEC-Q100 compliance, GND-referenced operation, output short-circuit robustness, and sub-1.2 mA quiescent current-making it the preferred choice for automotive and industrial analog signal chains where reliability, simplicity, and low power coexist.
Availability
UPC1251GR(5)-9LG-E1-A is available at Aetrix Electronics and suitable for automotive cabin control modules, industrial 4–20 mA loop receivers, and portable medical sensor interfaces requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for UPC1251GR(5)-9LG-E1-A 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
Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and enterprise applications, with strong IP portfolios in embedded processing and mixed-signal design.
The μPC1251A series was developed specifically for automotive and industrial analog signal conditioning where single-supply simplicity, GND-referenced operation, and AEC-Q100 reliability are mandatory-targeting ECU front-ends, sensor interface modules, and safety-critical monitoring systems.
FAQ
What is the maximum operating supply voltage for the UPC1251GR(5)-9LG-E1-A?
The UPC1251GR(5)-9LG-E1-A supports a maximum single-supply voltage of +30 V (V+ to V−) and ±15 V for split-supply operation. Exceeding +30 V or applying reverse polarity risks permanent damage, as specified in the Absolute Maximum Ratings table on page 3 of the R03DS0134EJ0100 datasheet. Derating applies above 69 °C ambient per thermal specifications.
Does the UPC1251GR(5)-9LG-E1-A support true rail-to-rail input operation?
No, the UPC1251GR(5)-9LG-E1-A does not support rail-to-rail input. Its common-mode input voltage range is specified as 0 V to V+ − 1.5 V (typical), meaning the input cannot safely reach V+ or go below GND. However, it does support GND-referenced inputs and outputs down to V− (GND), making it ideal for single-supply systems where the negative rail is grounded.
Is the UPC1251GR(5)-9LG-E1-A pin-compatible with other variants in the μPC1251A family?
Yes, the UPC1251GR(5)-9LG-E1-A shares identical pinout and electrical functionality with other TSSOP-8 variants in the μPC1251A family, including μPC1251AGR and μPC1251AG2 (SOP-8). All variants use the same 8-pin configuration shown on page 2 of R03DS0134EJ0100, enabling direct substitution within the same package footprint.
What thermal derating applies to the UPC1251GR(5)-9LG-E1-A at elevated temperatures?
The UPC1251GR(5)-9LG-E1-A has a junction-to-ambient thermal resistance (Rth(J-A)) of 183 °C/W and requires derating at −5.5 mW/°C when ambient temperature exceeds 69 °C. This is documented in Note 4 of the Absolute Maximum Ratings section (page 3), and must be applied to maintain safe junction temperature under continuous load conditions.
Can the UPC1251GR(5)-9LG-E1-A drive a 2 kΩ load across its full output voltage range?
Yes, the UPC1251GR(5)-9LG-E1-A is characterized to deliver an output voltage swing of 0 V to V+ − 1.5 V with a 2 kΩ load to GND (per Electrical Characteristics table, page 4). At V+ = +5 V, this yields a usable range of 0 V to +3.5 V, sufficient for driving mid-scale ADC inputs or interfacing with logic-level comparators.
UPC1251GR(5)-9LG-E1-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- -
- Function:
- -
- Output Configuration:
- -
- Interface:
- -
- Technology:
- -
- Step Resolution:
- -
- Applications:
- -
- Current - Output:
- -
- Voltage - Supply:
- -
- Voltage - Load:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
UPC1251GR(5)-9LG-E1-A FAQ
1.How can I place an order for UPC1251GR(5)-9LG-E1-A through Aetrix?
Please submit a Request for Quotation (RFQ) for UPC1251GR(5)-9LG-E1-A 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 UPC1251GR(5)-9LG-E1-A reliable?
The price and inventory of UPC1251GR(5)-9LG-E1-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPC1251GR(5)-9LG-E1-A is usually 5 days.
3.What payment methods are accepted for UPC1251GR(5)-9LG-E1-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPC1251GR(5)-9LG-E1-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPC1251GR(5)-9LG-E1-A?
UPC1251GR(5)-9LG-E1-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPC1251GR(5)-9LG-E1-A 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 UPC1251GR(5)-9LG-E1-A?
For technical support, including UPC1251GR(5)-9LG-E1-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPC1251GR(5)-9LG-E1-A requirements.
6.How does Aetrix verify that UPC1251GR(5)-9LG-E1-A is sourced from the original manufacturer or authorized distributors?
All UPC1251GR(5)-9LG-E1-A 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 UPC1251GR(5)-9LG-E1-A meets industry standards.
7.What is the process for return or replacement of UPC1251GR(5)-9LG-E1-A?
All UPC1251GR(5)-9LG-E1-A units undergo pre-shipment inspection (PSI). If there is an issue with UPC1251GR(5)-9LG-E1-A, 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 UPC1251GR(5)-9LG-E1-A part is unused and in its original packaging.
Return procedure for UPC1251GR(5)-9LG-E1-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UPC1251GR(5)-9LG-E1-A Tags
-
DRV2603RUNR
Texas Instruments
-
DRV8837CDSGR
Texas Instruments
-
DRV8837DSGR
Texas Instruments
-
DRV8838DSGR
Texas Instruments
-
DRV8839DSSR
Texas Instruments
-
EMC2301-1-ACZL-TR
Microchip Technology
-
DRV8231ADSGR
Texas Instruments
-
EMC2302-2-AIZL-TR
Microchip Technology
-
DRV8800PWPR
Texas Instruments
-
DRV8835DSSR
Texas Instruments
-
EMC2303-1-KP-TR
Microchip Technology
-
DRV8876PWPR
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
