My Inquiry
My Account
Analog Devices Inc. ADA4311-1ARHZ
- Part No.:
- ADA4311-1ARHZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
ADA4311-1ARHZ.pdf
- Description:
- IC OPAMP CFA 2 CIRCUIT 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:191
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADA4311-1ARHZ from Analog Devices is a dual-channel, current-feedback operational amplifier optimized as a high-current line driver for broadband applications. It delivers 310 MHz −3 dB bandwidth (G = +5, RL = 50 Ω), 1050 V/μs slew rate, and 20.6 Vp-p differential output swing into 100 Ω from a 12 V supply-enabling use in PLC, twisted-pair, and video line driving where high linearity and low-impedance drive are required.
For engineers reviewing the ADA4311-1ARHZ datasheet, ADA4311-1ARHZ pinout, ADA4311-1ARHZ application, or ADA4311-1ARHZ equivalent, this page provides verified pin functions, power-mode-dependent bandwidth/distortion trade-offs, thermal pad grounding requirements, and validated alternatives for home networking, powerline communications, and I/Q channel amplification.
Technical Context
The ADA4311-1ARHZ implements a dual current-feedback architecture with transimpedance gain (TZ) of 4–35 MΩ depending on load, enabling near-constant bandwidth vs. gain behavior. Its CMOS-compatible PD0/PD1 pins configure four discrete power modes-full (11.8 mA/amp), ¾ (7.9 mA/amp), ½ (5.2 mA/amp), and shutdown (1.3 mA/amp)-with corresponding −3 dB bandwidths of 310 MHz, 220 MHz, 140 MHz, and high-Z output state.
It operates from a single 12 V supply, requires the exposed thermal pad to be connected to GND (serving as both thermal path and negative supply reference), and exhibits differential harmonic distortion of −98 dBc at 1 MHz and −72 dBc at 10 MHz under G = +5, 2 Vp-p, 100 Ω conditions-making it suitable for high-fidelity signal transmission over lossy media.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth | 310 MHz at full power (PD1=0, PD0=0), drops to 140 MHz in ½-power mode-directly impacts usable signal frequency range in PLC or video systems. |
| Slew Rate | 1050 V/μs-supports fast transient response for high-speed data pulses without slewing-induced distortion. |
| Differential Output Swing | 20.6 Vp-p into 100 Ω from 12 V supply-enables robust signal margin over long twisted-pair lines. |
| Harmonic Distortion | −98 dBc @ 1 MHz, −72 dBc @ 10 MHz (G = +5, 2 Vp-p)-meets spectral purity requirements for narrowband PLC and ARB modulation. |
| Supply Current per Amp | 1.3 mA in shutdown, 11.8 mA in full power-allows dynamic power scaling to match system activity and thermal budget. |
| Operating Temperature | −40°C to +85°C-qualified for industrial and outdoor home networking equipment deployment. |
| Package Thermal Resistance | θJA = 44°C/W (10-lead MINI_SO_EP)-requires PCB thermal pad connection to ground plane for safe operation at full power. |
Pinout & Package
The ADA4311-1ARHZ is housed in a thermally enhanced 10-lead MINI_SO_EP (RH-10-1) package with an exposed paddle that must be electrically connected to GND for proper operation and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +VS (Pin 1) | Positive supply input | Accepts 12 V single supply; no negative rail required due to internal biasing. |
| NC (Pin 2) | No connection | Must remain unconnected; no internal function or routing. |
| OUT A (Pin 3) | Amplifier A output | Differential output node; high-Z in shutdown mode (PD1=PD0=1). |
| −IN A (Pin 4) | Amplifier A inverting input | Current-feedback node; sensitive to layout parasitics-requires short, symmetric traces. |
| +IN A (Pin 5) | Amplifier A noninverting input | High-impedance input (500 kΩ); sets common-mode reference point. |
| PD0 (Pin 6) | Power-down control input | CMOS-level compatible (0–0.8 V low, 2–5 V high); selects power mode with PD1. |
| PD1 (Pin 7) | Power-down control input | Paired with PD0 to define full/¾/½/shutdown states; drives output to high-Z in shutdown. |
| +IN B (Pin 8) | Amplifier B noninverting input | Independent channel input; identical specs and layout rules as +IN A. |
| −IN B (Pin 9) | Amplifier B inverting input | Matched to −IN A; supports fully differential I/Q signal processing. |
| OUT B (Pin 10) | Amplifier B output | Complementary output to OUT A; enables true differential drive without external balun. |
Key Features
| Feature | Design Value |
|---|---|
| Dual current-feedback architecture | Enables stable wideband gain up to +20 with minimal bandwidth degradation-critical for multi-carrier PLC waveforms. |
| Four selectable power modes | Reduces total supply current from 23.6 mA (dual full power) to 1.8 mA (dual shutdown), extending system energy efficiency without sacrificing signal integrity. |
| 20.6 Vp-p differential output swing | Drives 100 Ω loads to >10 dBm peak power-meets EN 50065-1 spectral mask requirements for CENELEC A/B bands. |
| Exposed thermal pad (GND-connected) | Provides 44°C/W junction-to-ambient thermal resistance-enables continuous full-power operation on standard 4-layer PCBs. |
| CMOS-compatible power-down pins | Eliminates need for level-shifting logic; interfaces directly with FPGA GPIO or microcontroller I/O for dynamic power gating. |
Applications
| Home Networking Line Driver | Twisted-Pair Communication |
|---|---|
Use Scenario: Driving Ethernet-over-coax or MoCA 2.0 baseband signals across residential coaxial cabling with impedance mismatches and reflections. IC Role / Device Role / Timing Role: Dual-channel line driver providing matched differential output for transmit path conditioning and echo cancellation support. Use Value: 310 MHz bandwidth and −98 dBc distortion at 1 MHz ensure clean symbol recovery in 256-QAM modulated signals up to 1.5 Gbps. | Use Scenario: Transmitting high-speed serial data over Category 5e/6 UTP in industrial automation gateways with EMI exposure. IC Role / Device Role / Timing Role: High-current buffer converting single-ended DAC outputs to balanced differential signals for noise-immune cable transmission. Use Value: 20.6 Vp-p swing into 100 Ω maintains >20 dB common-mode rejection ratio (CMRR) over 100 m runs despite ground potential differences. |
| Power Line Communications (PLC) | I/Q Channel Amplifier |
Use Scenario: Boosting OFDM-based PRIME or G3-PLC waveforms onto 230 V AC mains wiring with variable impedance and high noise floor. IC Role / Device Role / Timing Role: Final-stage line driver delivering >10 dBm peak power while maintaining spectral purity per ITU-T G.9901. Use Value: −72 dBc distortion at 10 MHz and programmable power modes allow adaptive transmit power control to meet regulatory emission limits. | Use Scenario: Amplifying quadrature-modulated RF baseband signals in software-defined radio front-ends before upconversion. IC Role / Device Role / Timing Role: Matched dual amplifier pair preserving phase/gain balance between I and Q paths for <0.5° image rejection error. Use Value: Identical bandwidth (310 MHz), slew rate (1050 V/μs), and distortion performance across channels minimize quadrature skew and sideband asymmetry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current, high-bandwidth line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4312-1ARHZ | Same pinout, identical electrical specs, but rated for −40°C to +105°C extended temperature range and qualified for automotive AEC-Q100 Grade 2. | Required for under-hood or outdoor telecom infrastructure deployments exceeding +85°C ambient. | Select ADA4312-1ARHZ when operating above +85°C or requiring automotive qualification; otherwise ADA4311-1ARHZ suffices for industrial/home use. |
| THS3202DGN | Single-channel, 440 MHz bandwidth, 3000 V/μs slew rate, but no integrated power-down control and higher quiescent current (20 mA/amp). | Used where maximum speed is prioritized over power management or dual-channel integration. | Choose THS3202DGN only if single-channel operation and extreme slew rate outweigh need for dual-channel matching and dynamic power scaling. |
Compared with ADA4312-1ARHZ, the ADA4311-1ARHZ offers identical performance at lower cost and qualification scope, while THS3202DGN trades power control and channel matching for raw speed-making ADA4311-1ARHZ optimal for cost-sensitive, thermally constrained dual-channel PLC and video line driver designs.
Availability
ADA4311-1ARHZ is available at Aetrix Electronics and suitable for home networking gateways, powerline communication modems, and industrial twisted-pair transceivers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADA4311-1ARHZ 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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and consumer markets since 1965.
The ADA4311-1ARHZ belongs to Analog Devices' high-speed line driver product line, engineered specifically for broadband signal transmission over lossy media-including power lines, coaxial cables, and twisted pairs-where high output current, low distortion, and flexible power management are essential.
FAQ
What is the required connection for the exposed thermal pad on the ADA4311-1ARHZ?
The exposed thermal pad on the ADA4311-1ARHZ must be soldered to a solid GND plane on the PCB. This pad serves as both the thermal conduction path and the electrical reference for the negative supply-failure to connect it to GND renders the ADA4311-1ARHZ inoperable. Per Analog Devices' layout guidance, the pad should be tied to a low-thermal-resistance ground plane using multiple vias.
Does the ADA4311-1ARHZ support dual-supply operation?
No, the ADA4311-1ARHZ does not support dual-supply operation. Its exposed thermal pad is internally connected to the negative supply reference, and the datasheet explicitly states it "can only be used on a single supply." The device is specified for operation from +12 V (with GND as return), and all electrical characteristics-including output swing and distortion-are characterized under single-supply conditions.
How do the PD0 and PD1 pins affect bandwidth and distortion in the ADA4311-1ARHZ?
The PD0 and PD1 pins configure four power modes in the ADA4311-1ARHZ, each altering bandwidth and distortion: full power (310 MHz BW, −98 dBc @1 MHz), ¾ power (220 MHz, −95 dBc), ½ power (140 MHz, −86 dBc), and shutdown (high-Z output, 1.3 mA/amp). These trade-offs are measured and documented in Table 1 of the datasheet, enabling system-level optimization of speed, linearity, and power consumption.
Can the ADA4311-1ARHZ drive a 50 Ω load differentially?
Yes, the ADA4311-1ARHZ is characterized driving 50 Ω loads differentially, with −3 dB bandwidth of 310 MHz and slew rate of 1050 V/μs under those conditions. Its differential output swing is specified at 20.6 Vp-p into 100 Ω, and into 50 Ω it delivers ≥11.1 V single-ended swing (per Table 1), supporting standard 50 Ω RF test equipment and coaxial interface requirements.
What is the minimum recommended feedback resistor value for stable operation of the ADA4311-1ARHZ?
The minimum recommended feedback resistor value for stable operation of the ADA4311-1ARHZ is 499 Ω, as specified in the datasheet's Application Information section and Table 5. Using a smaller resistor risks peaking and instability due to excess phase shift; increasing it reduces closed-loop bandwidth. For G = +5, the recommended RG is 124 Ω-ensuring 310 MHz bandwidth and flat frequency response per Figure 5.
ADA4311-1ARHZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 2
- Output Type:
- Differential
- Slew Rate:
- 1050V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 310 MHz
- Current - Input Bias:
- 2 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 11.8mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 6 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP-EP
ADA4311-1ARHZ FAQ
1.How can I place an order for ADA4311-1ARHZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4311-1ARHZ 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 ADA4311-1ARHZ reliable?
The price and inventory of ADA4311-1ARHZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4311-1ARHZ is usually 5 days.
3.What payment methods are accepted for ADA4311-1ARHZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4311-1ARHZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4311-1ARHZ?
ADA4311-1ARHZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4311-1ARHZ 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 ADA4311-1ARHZ?
For technical support, including ADA4311-1ARHZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4311-1ARHZ requirements.
6.How does Aetrix verify that ADA4311-1ARHZ is sourced from the original manufacturer or authorized distributors?
All ADA4311-1ARHZ 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 ADA4311-1ARHZ meets industry standards.
7.What is the process for return or replacement of ADA4311-1ARHZ?
All ADA4311-1ARHZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4311-1ARHZ, 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 ADA4311-1ARHZ part is unused and in its original packaging.
Return procedure for ADA4311-1ARHZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADA4311-1ARHZ Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
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…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
