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Analog Devices Inc. AD8028WARMZ-R7
- Part No.:
- AD8028WARMZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD8028WARMZ-R7.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:900
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Product details
Overview
AD8028WARMZ-R7 from Analog Devices is a dual-channel, rail-to-rail input/output high-speed voltage feedback amplifier optimized for automotive applications. It delivers 190 MHz −3 dB bandwidth (G = +1), 100 V/µs slew rate, and 120 dBc SFDR at 1 MHz - enabling precision ADC driving and video signal conditioning in extended-temperature environments (−40°C to +125°C). Its 10-lead MSOP package supports compact layout in safety-critical driver assistance systems.
For engineers reviewing the AD8028WARMZ-R7 datasheet, AD8028WARMZ-R7 pinout, AD8028WARMZ-R7 application, or AD8028WARMZ-R7 equivalent, key selection criteria include its automotive qualification, selectable input crossover threshold via DISABLE/SELECT pins, rail-to-rail operation down to 2.7 V supply, and guaranteed performance across temperature extremes without phase reversal.
Technical Context
The AD8028WARMZ-R7 implements a dual complementary bipolar (XFCB) input stage with independently controllable DISABLE/SELECT A and B pins - allowing per-channel selection of NPN-dominant, PNP-dominant, or tristate crossover modes to minimize distortion near supply rails. Each channel maintains rail-to-rail input common-mode range (−0.2 V to +5.2 V on 5 V supply) and output swing (0.04 V to 4.96 V).
Its architecture integrates overvoltage protection (±0.7 V beyond rails), no-phase-reversal behavior (VIN > |VS| + 200 mV), and low quiescent current (9 mA max over temperature) with fast enable/disable switching (45 ns / 1150 ns). The device achieves 1.5 µV/°C offset drift and 4.3 nV/√Hz voltage noise while sustaining 20 pF capacitive load drive stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth | 190 MHz at G = +1 (VS = ±5 V); ensures full-spectrum fidelity for HD video and wideband sensor signals |
| Slew Rate | 100 V/µs (G = −1); enables clean 2 V step response with ≤35 ns settling to 0.1% |
| SFDR | 120 dBc at 1 MHz (2 V p-p); meets dynamic range requirements for 16-bit ADC front-ends |
| Input Voltage Noise | 4.3 nV/√Hz; preserves SNR in low-level instrumentation and sensor amplification |
| Supply Range | 2.7 V to 12 V; supports direct integration into 3.3 V, 5 V, and 12 V automotive subsystems |
| Operating Temperature | −40°C to +125°C; qualified per AEC-Q100 Grade 1 for engine bay and ADAS ECU use |
| Quiescent Current | 9.5 mA max per amplifier (TMIN to TMAX); balances speed and power in always-on modules |
Pinout & Package
AD8028WARMZ-R7 is housed in a 10-lead MSOP package (3.0 mm × 3.0 mm × 1.0 mm profile) with exposed pad for thermal enhancement and automotive-grade moisture sensitivity level (MSL 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUTA | Channel A output; rail-to-rail swing supports direct interface to SAR ADC inputs or video DACs |
| 2 | −IN A | Inverting input, Channel A; matched impedance with +IN A for balanced differential gain stages |
| 3 | +IN A | Non-inverting input, Channel A; accepts common-mode voltages down to −0.2 V on 3 V supply |
| 4 | −VS | Negative supply rail; supports dual-supply (±5 V) or single-supply (ground-referenced) operation |
| 5 | DISABLE/SELECT A | Per-channel control: high = NPN-dominant mode, open = PNP-dominant, low = shutdown (370 µA) |
| 6 | DISABLE/SELECT B | Per-channel control: identical function to Pin 5 for Channel B; enables independent power gating |
| 7 | +IN B | Non-inverting input, Channel B; electrically isolated from Channel A for dual-path signal processing |
| 8 | −IN B | Inverting input, Channel B; supports fully differential configurations with matched AC characteristics |
| 9 | VOUTB | Channel B output; synchronized transient response with VOUTA for time-aligned dual-channel capture |
| 10 | +VS | Positive supply rail; connects to main system rail (e.g., 5 V or 12 V) with local 0.1 µF bypassing |
Key Features
| Feature | Design Value |
|---|---|
| Selectably biased input stage | DISABLE/SELECT pins shift crossover threshold to optimize distortion for high-side or low-side signal ranges |
| No phase reversal | Operates safely with inputs up to |VS| + 200 mV - eliminates latch-up risk in overvoltage transients |
| Rail-to-rail I/O | Input CMVR extends 200 mV beyond rails; output swings within 40 mV of rails at 1 kΩ load - maximizes dynamic range |
| Automotive qualification | AEC-Q100 Grade 1 certified with guaranteed parametric performance from −40°C to +125°C |
| Low-power shutdown | Reduces quiescent current to 450 µA per channel (max) - critical for battery-backed ADAS modules |
Applications
| ADC Driver for Automotive Radar | High-Speed Video Buffering |
|---|---|
Use Scenario: Driving 16-bit SAR ADC inputs in 77 GHz radar signal chains where baseband IF signals require wide bandwidth and ultra-low distortion. IC Role / Device Role / Timing Role: Dual-channel buffer and level shifter that conditions differential IF outputs from mixer stages before digitization. Use Value: 120 dBc SFDR at 1 MHz and 190 MHz bandwidth preserve radar resolution; automotive temp grade ensures reliability in under-hood radar modules. |
Use Scenario: Buffering RGB/YUV video streams from image sensors in surround-view camera systems operating at 60 fps. IC Role / Device Role / Timing Role: Rail-to-rail output driver maintaining signal integrity across 0–10 MHz video bandwidth with minimal group delay variation. Use Value: 0.1% settling in 35 ns and <0.2° differential phase error meet NTSC/PAL timing specs; MSOP footprint saves PCB area in multi-camera ECUs. |
| Low-Voltage Instrumentation Amplifier Stage | Active Filter for Battery Management |
Use Scenario: First-stage gain block in automotive cabin pressure or exhaust gas temperature sensor interfaces powered from 3.3 V supplies. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with low offset (900 µV max) and 4.3 nV/√Hz noise for microvolt-level signal extraction. Use Value: 1.5 µV/°C drift and rail-to-rail input allow full-scale utilization of 3.3 V ADC range; 2.7 V min supply enables direct connection to LDO outputs. |
Use Scenario: Second-order active anti-aliasing filter preceding cell voltage monitoring ADCs in 12S BMS units. IC Role / Device Role / Timing Role: Dual-channel unity-gain stable filter stage rejecting >100 kHz switching noise from DC-DC converters. Use Value: 20 pF capacitive load drive and 190 MHz bandwidth support sharp roll-off design; shutdown mode reduces idle current during sleep cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed rail-to-rail amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4897-2ARZ | Lower noise (1 nV/√Hz), lower bandwidth (210 MHz), no DISABLE/SELECT pin, non-automotive grade | Lacks automotive qualification and per-channel power-down; better for lab equipment than vehicle ECUs | Choose ADA4897-2ARZ only if noise dominates over temperature range and automotive compliance is unnecessary |
| LMH6629MA/NOPB | Higher power (12.5 mA), higher distortion (75 dBc SFDR @ 1 MHz), no rail-to-rail input, SOIC-8 only | Cannot handle input signals near supply rails; unsuitable for low-voltage sensor front-ends | Consider LMH6629MA/NOPB only for legacy 5 V systems where rail-to-rail input is not required |
Compared with ADA4897-2ARZ and LMH6629MA/NOPB, AD8028WARMZ-R7 uniquely combines AEC-Q100 qualification, dual-channel DISABLE/SELECT control, and guaranteed rail-to-rail operation from 2.7 V - making it the only option for thermally demanding, safety-critical dual-path signal conditioning in modern ADAS platforms.
Availability
AD8028WARMZ-R7 is available at Aetrix Electronics and suitable for automotive radar signal chains, surround-view camera interfaces, battery management analog front-ends, and engine control unit sensor conditioning requiring stable component supply across extended temperature ranges.
Supply support for AD8028WARMZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD8028WARMZ-R7 belongs to the AD8027/AD8028 family of rail-to-rail amplifiers designed specifically for high-fidelity signal acquisition in automotive and industrial systems where speed, precision, and environmental robustness are co-constrained.
FAQ
What automotive qualification does AD8028WARMZ-R7 hold?
AD8028WARMZ-R7 is qualified to AEC-Q100 Grade 1 standards, guaranteeing full electrical performance across −40°C to +125°C ambient temperature. This includes validated reliability testing for temperature cycling, humidity bias, and mechanical shock - essential for placement in engine compartments and ADAS electronic control units where thermal stress is extreme.
How does the DISABLE/SELECT pin function differ between AD8028WARMZ-R7 and standard AD8028 variants?
In AD8028WARMZ-R7, each channel has its own DISABLE/SELECT pin (Pins 5 and 6), enabling independent power-down or crossover mode selection per amplifier. Standard AD8028 variants in SOIC-8 lack separate pins - they share a single DISABLE/SELECT function. This per-channel control in AD8028WARMZ-R7 allows asymmetric operation, such as powering down Channel B while keeping Channel A active for fault-tolerant designs.
Can AD8028WARMZ-R7 operate from a single 3.3 V supply?
Yes, AD8028WARMZ-R7 operates from 2.7 V to 12 V supplies, including single 3.3 V rails. At VS = 3.3 V, it delivers 180 MHz −3 dB bandwidth (G = +1), 0.07 V to 2.93 V output swing, and maintains rail-to-rail input capability down to −0.2 V - making it suitable for low-voltage sensor interfaces in modern automotive domains like body control modules.
What is the maximum capacitive load AD8028WARMZ-R7 can drive stably?
AD8028WARMZ-R7 is specified to drive up to 20 pF capacitive loads with ≤30% overshoot in unity-gain configuration. This value is verified across temperature and supply voltage ranges. For heavier loads, external isolation resistors (e.g., 10–22 Ω in series with output) are recommended to maintain phase margin and prevent peaking in video or ADC driver applications.
Does AD8028WARMZ-R7 exhibit phase reversal when input exceeds supply rails?
No, AD8028WARMZ-R7 is explicitly designed to avoid phase reversal - a critical feature for automotive signal integrity. It remains stable with input voltages up to |VS| + 200 mV, confirmed across −40°C to +125°C. This behavior is enabled by its protected XFCB input stage and internal clamping, eliminating output inversion risks during transient overvoltage events in vehicle electrical systems.
AD8028WARMZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 100V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 190 MHz
- Current - Input Bias:
- 4 µA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 6.5mA (x2 Channels)
- Current - Output / Channel:
- 120 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
AD8028WARMZ-R7 FAQ
1.How can I place an order for AD8028WARMZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8028WARMZ-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 AD8028WARMZ-R7 reliable?
The price and inventory of AD8028WARMZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8028WARMZ-R7 is usually 5 days.
3.What payment methods are accepted for AD8028WARMZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8028WARMZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8028WARMZ-R7?
AD8028WARMZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8028WARMZ-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 AD8028WARMZ-R7?
For technical support, including AD8028WARMZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8028WARMZ-R7 requirements.
6.How does Aetrix verify that AD8028WARMZ-R7 is sourced from the original manufacturer or authorized distributors?
All AD8028WARMZ-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 AD8028WARMZ-R7 meets industry standards.
7.What is the process for return or replacement of AD8028WARMZ-R7?
All AD8028WARMZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8028WARMZ-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 AD8028WARMZ-R7 part is unused and in its original packaging.
Return procedure for AD8028WARMZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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