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Analog Devices Inc. ADA4891-4WARUZ-R7
- Part No.:
- ADA4891-4WARUZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADA4891-4WARUZ-R7.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,872
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Product details
Overview
ADA4891-4WARUZ-R7 from Analog Devices is a quad-channel, rail-to-rail output CMOS high-speed operational amplifier optimized for video and imaging signal conditioning. It delivers 220 MHz −3 dB bandwidth (G = +1), 170 V/μs slew rate, 28 ns settling to 0.1%, and supports single-supply operation from 2.7 V to 5.5 V with output swing within 50 mV of both rails. It is qualified for automotive applications and commonly used in CCD buffers and coaxial cable drivers.
For engineers reviewing the ADA4891-4WARUZ-R7 datasheet, ADA4891-4WARUZ-R7 pinout, ADA4891-4WARUZ-R7 application, or ADA4891-4WARUZ-R7 equivalent, key selection considerations include its 14-lead SOIC_N package, quad-channel configuration, rail-to-rail output stage, 25 MHz 0.1 dB gain flatness at G = +2, and −79 dBc SFDR at 1 MHz - critical for consumer video reconstruction and active filter design.
Technical Context
The ADA4891-4WARUZ-R7 belongs to the ADA4891 family of low-cost, high-performance CMOS op-amps designed for wideband signal path applications. Its architecture features true single-supply capability with input common-mode range extending 300 mV below the negative rail and rail-to-rail output swing enabling maximum dynamic range in 3 V and 5 V systems.
It operates across −40°C to +125°C and is specified for automotive-grade reliability. Unlike the ADA4891-3, it lacks power-down pins; all four amplifiers are always active. Performance is characterized at both 3 V and 5 V supplies, with bandwidth, distortion, and settling time tightly controlled across temperature and load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth | 220 MHz at G = +1 (5 V supply); enables high-fidelity video and fast pulse amplification |
| Slew Rate | 170 V/μs (5 V, G = +2); supports clean 2 V step response without slewing distortion |
| Settling Time | 28 ns to 0.1% (5 V, G = +2); meets timing requirements for high-speed data acquisition |
| Supply Range | 2.7 V to 5.5 V; compatible with modern low-voltage embedded and automotive systems |
| Output Swing | Within 50 mV of rails (RL = 1 kΩ); maximizes signal headroom in single-supply designs |
| Harmonic Distortion | −79 dBc HD2 at 1 MHz (G = +1); preserves fidelity in baseband video and sensor interfaces |
| Input Voltage Noise | 9 nV/√Hz at 1 MHz; suitable for low-noise preamp stages in imaging front-ends |
Pinout & Package
The ADA4891-4WARUZ-R7 is housed in a 14-lead SOIC_N (R-14) package, RoHS-compliant and rated for −40°C to +125°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output; rail-to-rail capable, drives 125 mA into 1 kΩ load |
| 2 | –IN1 | Inverting input of Amp 1; high impedance (5 GΩ), low bias current (±50 pA) |
| 3 | +IN1 | Non-inverting input of Amp 1; extends 300 mV below negative rail |
| 4 | –VS | Negative supply rail; accepts ground or negative voltage down to −0.5 V |
| 5 | +IN2 | Non-inverting input of Amp 2; electrically identical to +IN1 |
| 6 | –IN2 | Inverting input of Amp 2; matched to Amp 1 for dual-channel coherence |
| 7 | OUT2 | Amplifier 2 output; fully independent, same drive strength as OUT1 |
| 8 | OUT3 | Amplifier 3 output; shares same electrical specs and thermal behavior as OUT1 |
| 9 | –IN3 | Inverting input of Amp 3; part of quad-channel layout with minimal crosstalk (−80 dB @ 5 MHz) |
| 10 | +IN3 | Non-inverting input of Amp 3; supports DC-coupled single-supply configurations |
| 11 | –VS | Shared negative supply rail; common return for all four amplifiers |
| 12 | +IN4 | Non-inverting input of Amp 4; completes quad-channel symmetry |
| 13 | –IN4 | Inverting input of Amp 4; isolated from other inputs per datasheet crosstalk spec |
| 14 | OUT4 | Amplifier 4 output; enables compact multi-channel signal routing on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 50 mV of supply rails at 1 kΩ load, preserving full dynamic range in 3 V systems |
| Low distortion | −79 dBc SFDR at 1 MHz ensures minimal harmonic contamination in video reconstruction filters |
| High speed & fast settling | 220 MHz bandwidth and 28 ns 0.1% settling enable use in >10 MSPS sampling front-ends |
| Automotive qualification | Specified over −40°C to +125°C and qualified per AEC-Q100, supporting infotainment and ADAS designs |
| Quad-channel integration | Four matched amplifiers in one 14-lead SOIC reduce board area vs. discrete solutions by >60% |
Applications
| Consumer Video Reconstruction | CCD Image Sensor Buffering |
|---|---|
Use Scenario: Reconstructing composite NTSC/PAL video signals after DAC output with minimal gain/phase error. IC Role / Device Role / Timing Role: Video reconstruction filter driver with precise 0.1 dB gain flatness up to 25 MHz and <0.25° differential phase error. Use Value: Maintains broadcast-grade color fidelity and sync stability without external passive tuning components. | Use Scenario: Conditioning analog output from linear CCD arrays in document scanners and industrial inspection cameras. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth buffer amplifying weak, high-impedance CCD pixel outputs. Use Value: 9 nV/√Hz input noise and 220 MHz bandwidth preserve spatial resolution and linearity across full scan rate. |
| Coaxial Cable Driver | Active Filter Stage |
Use Scenario: Driving 75 Ω coaxial cables in automotive rear-view camera systems over 5–10 m distances. IC Role / Device Role / Timing Role: High-current (125 mA) line driver with fast settling to maintain edge integrity in HD video streams. Use Value: Eliminates need for external current-boosting transistors while sustaining 25 MHz bandwidth into 75 Ω. | Use Scenario: Implementing 4th-order Sallen-Key or MFB active filters in medical imaging front-ends. IC Role / Device Role / Timing Role: Quad-channel op-amp providing matched gain blocks, integrators, and feedback paths. Use Value: Channel-to-channel matching minimizes passband ripple; 28 ns settling ensures stable transient response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4891-4ARUZ-R7 | Standard grade (not automotive-qualified); same electrical specs but rated for −40°C to +85°C only | Not suitable for under-hood or dashboard-mounted automotive modules requiring extended temperature operation | Select ADA4891-4WARUZ-R7 when AEC-Q100 compliance and +125°C operation are mandatory |
| LMH6629MA/NOPB | Higher bandwidth (1.5 GHz), higher quiescent current (12.5 mA per amp), no rail-to-rail output | Better for RF IF amplification; unsuitable for low-voltage single-supply video where rail-to-rail swing is required | Choose LMH6629MA/NOPB only when >500 MHz small-signal bandwidth is needed and supply headroom permits non-rail-to-rail output |
Compared with ADA4891-4ARUZ-R7, the ADA4891-4WARUZ-R7 adds automotive qualification and extended temperature support without sacrificing speed or noise performance; compared with LMH6629MA/NOPB, it trades bandwidth for lower power, rail-to-rail output, and cost efficiency in video and imaging signal chains.
Availability
ADA4891-4WARUZ-R7 is available at Aetrix Electronics and suitable for automotive infotainment systems, CCD-based imaging modules, and high-speed active filter designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADA4891-4WARUZ-R7 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADA4891 family was developed to deliver high-speed, low-cost amplification for cost-sensitive video, imaging, and instrumentation applications - balancing bandwidth, distortion, power, and robustness in a single platform.
FAQ
What is the operating temperature range of the ADA4891-4WARUZ-R7?
The ADA4891-4WARUZ-R7 is specified for operation from −40°C to +125°C and is AEC-Q100 qualified, making it suitable for under-hood automotive environments and industrial control systems where extended thermal stability is required. This range is confirmed in the Absolute Maximum Ratings and Operating Temperature Range sections of the Rev. F datasheet.
Does the ADA4891-4WARUZ-R7 have power-down functionality?
No, the ADA4891-4WARUZ-R7 does not include power-down pins. Power-down capability is exclusive to the ADA4891-3 and ADA4891-3W variants (PD1–PD3 pins). The ADA4891-4WARUZ-R7 contains four always-active amplifiers, simplifying biasing and eliminating turn-on/turn-off timing constraints in continuous-operation systems.
What package type is used for the ADA4891-4WARUZ-R7?
The ADA4891-4WARUZ-R7 uses a 14-lead SOIC_N (R-14) package, as confirmed in Figure 5 of the Rev. F datasheet and the Ordering Guide. It is RoHS-compliant, surface-mount, and thermally rated for 162°C/W junction-to-ambient (θJA), supporting reliable operation in high-density PCB layouts.
Can the ADA4891-4WARUZ-R7 drive a 75 Ω coaxial cable directly?
Yes, the ADA4891-4WARUZ-R7 can drive 75 Ω loads directly: it delivers 125 mA output current at 1% THD (1 MHz, 2 V p-p) and maintains 25 MHz 0.1 dB gain flatness into 150 Ω - a condition closely representative of 75 Ω terminated video lines. Layout best practices (short traces, proper termination) are recommended for optimal signal integrity.
Is the ADA4891-4WARUZ-R7 pin-compatible with other members of the ADA4891 family?
The ADA4891-4WARUZ-R7 shares the same 14-lead SOIC_N pinout as the ADA4891-3 and ADA4891-3W variants, but is not pin-compatible with the ADA4891-1 (5-lead SOT-23 or 8-lead SOIC) or ADA4891-2 (8-lead SOIC/MSOP). Pin compatibility exists only within the 14-lead quad/triple variants, though functional differences (e.g., absence of PD pins) must be accounted for in schematic design.
ADA4891-4WARUZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 170V/µs
- Gain Bandwidth Product:
- 105 MHz
- -3db Bandwidth:
- 220 MHz
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 2.5 mV
- Current - Supply:
- 4.4mA (x4 Channels)
- Current - Output / Channel:
- 125 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
ADA4891-4WARUZ-R7 FAQ
1.How can I place an order for ADA4891-4WARUZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4891-4WARUZ-R7 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 ADA4891-4WARUZ-R7 reliable?
The price and inventory of ADA4891-4WARUZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4891-4WARUZ-R7 is usually 5 days.
3.What payment methods are accepted for ADA4891-4WARUZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4891-4WARUZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4891-4WARUZ-R7?
ADA4891-4WARUZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4891-4WARUZ-R7 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 ADA4891-4WARUZ-R7?
For technical support, including ADA4891-4WARUZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4891-4WARUZ-R7 requirements.
6.How does Aetrix verify that ADA4891-4WARUZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADA4891-4WARUZ-R7 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 ADA4891-4WARUZ-R7 meets industry standards.
7.What is the process for return or replacement of ADA4891-4WARUZ-R7?
All ADA4891-4WARUZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4891-4WARUZ-R7, 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 ADA4891-4WARUZ-R7 part is unused and in its original packaging.
Return procedure for ADA4891-4WARUZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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