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Texas Instruments RCV420JP
- Part No.:
- RCV420JP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
RCV420JP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:448
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Product details
Overview
RCV420JP from Texas Instruments (originally Burr-Brown) is a precision monolithic 4–20mA current-loop receiver IC that converts industrial loop current into a 0–5V output voltage with 0.1% overall conversion accuracy, ±40V common-mode input range, and 86dB CMR. It integrates premium op-amps, laser-trimmed 75Ω sense resistors, and a 10V reference for factory-calibrated performance in process control signal conditioning.
For engineers reviewing the RCV420JP datasheet, RCV420JP pinout, RCV420JP application, or RCV420JP equivalent, this page delivers verified specifications, real-world interface constraints, exact pin functions, industrial use-case mapping, and validated alternative options - all grounded in the official SBVS019 datasheet and TI packaging documentation.
Technical Context
The RCV420JP implements a differential transimpedance architecture using two matched 75Ω laser-trimmed sense resistors and an internal tee-network feedback path to generate precise –1.25V offset for 0V output at 4mA input. Its gain is fixed at 0.3125 V/mA (5V/16mA span), with no external gain-setting components required.
Level shifting is supported via Ref In (8:1 attenuation) or Rcv Com (direct coupling), while built-in 10V reference provides ±5ppm/°C drift and 5µVp-p (0.1Hz–10Hz) noise. Common-mode rejection relies on internal resistor matching (0.01% typical) and low-impedance grounding of Rcv Com - external series resistance degrades CMR by ~3dB per 10Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Range | 4–20mA loop current, compatible with standard industrial current transmitters |
| Output Range | 0–5V DC, referenced to Rcv Com; supports direct ADC interfacing without scaling |
| Conversion Accuracy | 0.1% of span (JP grade), including gain, offset, and reference errors over 0°C to +70°C |
| Common-Mode Range | ±40V continuous - enables operation in noisy plant-floor environments with ground potential differences |
| CMR | 86dB minimum at DC, 80dB at 60Hz - suppresses interference from motor drives and AC power lines |
| Reference Output | 10.00V ±10mV (TYP), 5ppm/°C drift - usable as system reference or level-shift source |
| Supply Voltage | ±15V nominal, ±11.4V to ±18V operating range - accommodates unregulated industrial rails |
Pinout & Package
RCV420JP is housed in a 16-pin plastic DIP (PDIP-N) package with 0.300" wide body and through-hole mounting. Thermal resistance θJA is 80°C/W. Pin 1 is located at the left end of the top row when viewed from above with notch or dot oriented left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (–In) | Inverting current input | Accepts negative-polarity loop current; used with CT for balanced differential sensing |
| 2 (+In) | Non-inverting current input | Accepts positive-polarity loop current; paired with –In and CT for true differential conversion |
| 3 (CT) | Center-tap return | Loop current return path; must be connected to system ground or isolated reference point |
| 4 (V+) | Positive supply rail | +11.4V to +18V DC; requires local 1µF tantalum decoupling |
| 5 (Rcv Com) | Receiver output common | Output reference node; low-impedance connection essential for maintaining >80dB CMR |
| 6 (Ref Com) | Reference output common | Reference ground return; separate from Rcv Com to avoid ground-loop coupling |
| 7 (Ref Noise Reduction) | Noise filter terminal | Connect 0.1µF capacitor to ground to reduce reference high-frequency noise to ~25µVp-p |
| 8 (Ref Trim) | Voltage reference adjustment | External potentiometer connection for ±400mV reference trim (±50mV at output due to 8:1 attenuation) |
| 9 (NC) | No connect | Not internally bonded; leave unconnected and unpopulated on PCB |
| 10 (Ref fB) | Reference feedback | Internal node for reference amplifier feedback; not user-accessible |
| 11 (Ref Out) | 10V reference output | Provides stable 10V source; capable of sourcing +10mA/sinking –2mA |
| 12 (Ref In) | Reference input for level shift | Accepts external voltage to shift RCV420JP output; 8:1 attenuation to output |
| 13 (Rcv fB) | Receiver feedback | Internal transimpedance amplifier feedback node; not user-accessible |
| 14 (Rcv Out) | Main output voltage | 0–5V analog output proportional to loop current; drives loads ≥10kΩ |
| 15 (Rcv f) | Receiver feedback test point | Accessible internal node for stability analysis; not intended for external connection |
| 16 (V–) | Negative supply rail | –11.4V to –18V DC; requires local 1µF tantalum decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic 4–20mA to 0–5V conversion | Eliminates discrete op-amp, resistor, and reference design - reduces BOM count and calibration labor |
| Laser-trimmed 75Ω sense resistors | 0.01% matching ensures >86dB CMR without external trimming or layout symmetry constraints |
| Integrated 10V reference | 5ppm/°C drift and 5µVp-p low-frequency noise enable high-accuracy data acquisition without external references |
| Built-in level-shifting capability | Supports both Ref In (attenuated) and Rcv Com (direct) methods - simplifies interfacing to non-ground-referenced systems |
| ±40V common-mode input tolerance | Enables direct connection to field instruments without external isolation or protection circuitry in most cases |
Applications
| Process Control Transmitter Interface | Factory Automation I/O Module |
|---|---|
Use Scenario: Receiving 4–20mA signals from temperature, pressure, or flow transmitters in PLC rack-mounted analog input cards. IC Role / Device Role / Timing Role: Primary current-to-voltage converter providing calibrated 0–5V output for downstream ADC sampling. Use Value: Delivers 0.1% accuracy across 0°C to +70°C without field recalibration, reducing maintenance intervals in chemical plant environments. |
Use Scenario: Signal conditioning for distributed I/O nodes in automotive assembly line control cabinets with long cable runs. IC Role / Device Role / Timing Role: Immune front-end receiver rejecting 60Hz noise and ground differentials between robot controllers and sensor networks. Use Value: 86dB CMR and ±40V common-mode range eliminate need for external isolators in Category 2 industrial zones. |
| SCADA Remote Terminal Unit (RTU) | ESD-Safe Instrumentation Loop |
Use Scenario: Converting loop current from remote tank-level sensors in oil & gas telemetry systems powered by solar-charged batteries. IC Role / Device Role / Timing Role: Low-quiescent (4mA total) receiver enabling extended battery life while maintaining precision under variable supply conditions. Use Value: Stable 0.3125 V/mA gain and ±15V supply tolerance allow operation across wide battery discharge curves without gain drift. |
Use Scenario: Interface for intrinsically safe (IS) barrier-protected loops in hazardous area analyzers handling flammable gas detection signals. IC Role / Device Role / Timing Role: Low-drop (1.5V at full scale) receiver minimizing voltage headroom consumption in energy-limited IS circuits. Use Value: 1.5V compliance voltage drop preserves margin for upstream Zener barriers and allows use with 24V loop supplies down to 12V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-loop receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XTR115IRUGT | Two-wire 4–20mA transmitter (not receiver); lacks integrated 10V reference and differential sense architecture | Designed for sensor-side transmission, not field-device signal reception | Select only if building transmitter-side circuitry; incompatible as RCV420JP replacement |
| ISO122JP | Isolated analog amplifier with 1500VRMS galvanic isolation; no native 4–20mA input stage or sense resistors | Requires external current-sense resistor and signal conditioning; adds isolation overhead | Choose when system-level isolation is mandatory; otherwise increases cost and board space vs. RCV420JP |
Compared with XTR115IRUGT and ISO122JP, the RCV420JP uniquely integrates matched sense resistors, precision reference, and transimpedance amplifier in one monolithic IC - delivering plug-and-play 4–20mA reception without external gain/offset components or isolation transformers.
Availability
RCV420JP is available at Aetrix Electronics and suitable for process control, factory automation, and SCADA systems requiring stable component supply, long-term manufacturability, and guaranteed traceability for industrial OEM deployments.
Supply support for RCV420JP 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
Texas Instruments acquired Burr-Brown in 2000 and maintains full production, documentation, and support for legacy precision analog products like the RCV420JP.
The RCV420JP belongs to TI's industrial current-loop interface product line, engineered specifically for high-accuracy, noise-immune signal conditioning in harsh electrical environments - not general-purpose amplification.
FAQ
What is the maximum common-mode voltage the RCV420JP can handle?
The RCV420JP supports a continuous common-mode input voltage range of ±40V, as specified in the Absolute Maximum Ratings table. This allows direct connection to field instruments where ground potentials differ significantly - such as between motor drives and sensor transmitters - without external protection. Exceeding ±40V risks permanent damage per the datasheet.
Does the RCV420JP require external gain or offset trimming?
No, the RCV420JP is fully self-contained with factory-laser-trimmed resistors and a precision 10V reference. Gain is fixed at 0.3125 V/mA and zero error is ≤0.15% of span for the JP grade - no potentiometers or calibration steps are needed for standard 4–20mA to 0–5V conversion. External trim is optional only for specialized level-shifting or reference adjustment.
Can the RCV420JP operate from a single supply?
No, the RCV420JP requires dual ±11.4V to ±18V supplies as confirmed in the Electrical Specifications table. Its internal architecture - including the differential sense stage and 10V reference - depends on symmetrical rails. Single-supply operation is not supported, and attempting it will result in incorrect output or device malfunction.
What is the output drive capability of the RCV420JP's 0–5V signal?
The RCV420JP Rcv Out pin drives loads ≥10kΩ with full 0–5V swing, as implied by its 0.01Ω output impedance specification and 1000pF capacitive load stability rating. For lower-impedance loads (e.g., <5kΩ), external buffering is required to maintain linearity and settling time - the internal amplifier is optimized for precision, not power delivery.
How does the RCV420JP achieve 0.1% conversion accuracy?
The RCV420JP achieves 0.1% overall conversion accuracy through monolithic integration: laser-trimmed 75Ω sense resistors (0.01% match), a 10V reference with 5ppm/°C drift, and a premium op-amp with <10µV/°C offset drift. These elements are co-fabricated and thermally coupled, eliminating inter-component mismatches that degrade accuracy in discrete designs - all verified across 0°C to +70°C.
RCV420JP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 150 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- -
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 3mA
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
RCV420JP FAQ
1.How can I place an order for RCV420JP through Aetrix?
Please submit a Request for Quotation (RFQ) for RCV420JP 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 RCV420JP reliable?
The price and inventory of RCV420JP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCV420JP is usually 5 days.
3.What payment methods are accepted for RCV420JP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCV420JP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCV420JP?
RCV420JP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCV420JP 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 RCV420JP?
For technical support, including RCV420JP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCV420JP requirements.
6.How does Aetrix verify that RCV420JP is sourced from the original manufacturer or authorized distributors?
All RCV420JP 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 RCV420JP meets industry standards.
7.What is the process for return or replacement of RCV420JP?
All RCV420JP units undergo pre-shipment inspection (PSI). If there is an issue with RCV420JP, 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 RCV420JP part is unused and in its original packaging.
Return procedure for RCV420JP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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