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Analog Devices Inc. AD8033ARZ-REEL
- Part No.:
- AD8033ARZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8033ARZ-REEL.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,017
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Product details
Overview
AD8033ARZ-REEL from Analog Devices is a single-channel, FET-input voltage-feedback operational amplifier optimized for high-speed, low-noise signal conditioning. It delivers 80 MHz −3 dB bandwidth (G = +1), 80 V/μs slew rate (G = +2), and 11 nV/√Hz input voltage noise at 100 kHz - enabling precision buffering and active filtering in instrumentation and photodiode preamplifier circuits.
For engineers reviewing the AD8033ARZ-REEL datasheet, AD8033ARZ-REEL pinout, AD8033ARZ-REEL application, or AD8033ARZ-REEL equivalent, this page provides verified package mapping (8-lead SOIC-R), rail-to-rail output operation, single-supply compatibility (5 V to 24 V), and confirmed performance across industrial temperature (−40°C to +85°C).
Technical Context
The AD8033ARZ-REEL uses Analog Devices' proprietary XFCB process with JFET input stage and folded-cascade topology, enabling 1 pA typical input bias current and >90 dB CMRR/PSRR over frequency. Its bipolar-enhanced input prevents phase reversal when driven beyond the positive rail.
The common-emitter output stage supports rail-to-rail swing and drives up to 35 pF capacitive load (30% overshoot, G = +1) while sourcing/sinking 20 mA within 500 mV of supply rails - critical for driving ADC inputs and fast settling in data acquisition systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth | 80 MHz at G = +1 - enables full-power response up to video and medium-speed communication frequencies. |
| Slew Rate | 80 V/μs at G = +2 - ensures <95 ns 0.1% settling for 2 V step, suitable for pulse amplification and DAC output buffering. |
| Input Voltage Noise | 11 nV/√Hz at 100 kHz - preserves SNR in low-level sensor signal chains such as photodiode or strain gauge interfaces. |
| Input Bias Current | 1 pA typical - minimizes voltage error in high-impedance source applications like piezoelectric sensors or pH electrodes. |
| Supply Range | 5 V to 24 V single or dual supply - supports direct interfacing with 5 V microcontrollers, 12 V industrial buses, and 24 V PLC I/O modules. |
| Output Swing | Rail-to-rail - delivers full dynamic range into ADCs or downstream comparators without level-shifting circuitry. |
| Quiescent Current | 3.3 mA per amplifier - balances speed and power efficiency for battery-backed or thermally constrained designs. |
Pinout & Package
AD8033ARZ-REEL is packaged in an 8-lead SOIC (R) with exposed pad not present; RoHS-compliant, moisture-sensitive level 1, rated for −40°C to +85°C operation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Internally unconnected; must be left floating or tied to ground per layout best practice. |
| 2 | Inverting Input (−IN) | Differential input node; high-impedance FET path with 1000 GΩ||2.3 pF common-mode impedance. |
| 3 | Non-Inverting Input (+IN) | Differential input node; same high-impedance characteristics as −IN; enables unity-gain buffer configuration. |
| 4 | Negative Supply (−VS) | Ground reference in single-supply mode; connects to −5 V in dual-supply operation. |
| 5 | No Connect (NC) | Internally unconnected; no routing or termination required. |
| 6 | Output (VOUT) | Rail-to-rail output capable of sourcing/sinking 20 mA within 500 mV of rails; drives 35 pF directly. |
| 7 | Positive Supply (+VS) | Power input; accepts 5–24 V; bypassing with 1 µF ceramic + 10 nF near pin essential for stability. |
| 8 | No Connect (NC) | Internally unconnected; leave unpopulated or grounded only if required by PCB thermal relief. |
Key Features
| Feature | Design Value |
|---|---|
| FET input stage | 1 pA typical input bias current enables accurate amplification of signals from ultra-high-impedance sources (e.g., >100 MΩ sensors). |
| Rail-to-rail output | Swings within 100 mV of rails at 1 mA load - maximizes usable dynamic range for 12-bit+ ADC interfacing. |
| No phase reversal | Bipolar-assisted input prevents output inversion when inputs exceed positive rail - eliminates latch-up risk in level-shifting circuits. |
| Capacitive load drive | Stable with 35 pF load at G = +1 - eliminates need for external isolation resistors when driving long traces or ADC input capacitance. |
| Low distortion | −85 dBc second harmonic (1 MHz, RL = 1 kΩ) - maintains fidelity in active filter and signal reconstruction applications. |
Applications
| Instrumentation Signal Conditioning | Photodiode Preamp |
|---|---|
Use Scenario: Amplifying low-level DC-coupled sensor outputs (e.g., load cells, RTDs) in portable test equipment with 5 V battery supply. IC Role / Device Role / Timing Role: Precision DC-stable gain block with sub-mV offset and minimal drift over temperature. Use Value: 1 mV typical input offset and 4 μV/°C drift ensure measurement accuracy without frequent recalibration. |
Use Scenario: Converting photocurrent from high-speed photodiodes (e.g., in optical encoders or laser rangefinders) into clean voltage signals. IC Role / Device Role / Timing Role: Transimpedance amplifier with wide bandwidth and low input current noise. Use Value: 0.7 fA/√Hz input current noise preserves SNR at high gain; 80 MHz bandwidth supports >10 Mbps optical data recovery. |
| Active Filter Stage | ADC Driver |
Use Scenario: Implementing 4th-order Sallen-Key or MFB bandpass filters in medical ECG front-ends requiring low THD and stable phase response. IC Role / Device Role / Timing Role: High-slew-rate, low-distortion gain stage shaping analog signal spectrum before digitization. Use Value: −82 dBc third harmonic at 1 MHz and 21 MHz small-signal bandwidth at G = +2 support anti-aliasing filter design up to 10 MHz. |
Use Scenario: Driving SAR or sigma-delta ADC inputs (e.g., AD768x, AD717x) with fast settling and minimal charge kickback. IC Role / Device Role / Timing Role: Low-output-impedance buffer isolating switched-capacitor ADC input from source impedance variations. Use Value: 95 ns 0.1% settling time for 2 V step ensures full accuracy at 10 MSPS sampling rates; rail-to-rail swing matches ADC reference range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed FET-input op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA656U | Higher 500 MHz GBW but 12 mA quiescent current; 0.95 nV/√Hz noise; SOIC-8 package. | Better for RF/IF gain stages where bandwidth >200 MHz is required; less suitable for power-constrained systems. | Select OPA656U when >200 MHz closed-loop bandwidth or sub-1 nV/√Hz noise is mandatory; AD8033ARZ-REEL preferred for cost-sensitive, low-power instrumentation. |
| LMH6624MA | 250 MHz GBW, 1.3 nV/√Hz noise, 12.5 mA IQ; SOIC-8; no rail-to-rail output. | Superior noise and speed for wideband photodiode preamps; output swing limited to ~1.2 V from rails limits ADC interface flexibility. | Choose LMH6624MA for ultra-low-noise, high-bandwidth transimpedance applications; AD8033ARZ-REEL offers rail-to-rail output and lower power for general-purpose buffering. |
Compared with OPA656U and LMH6624MA, AD8033ARZ-REEL trades raw bandwidth and ultra-low noise for significantly lower power (3.3 mA vs. ≥12 mA), rail-to-rail output, and lower cost - making it optimal for industrial sensor interfaces and portable instrumentation where 80 MHz bandwidth suffices.
Availability
AD8033ARZ-REEL is available at Aetrix Electronics and suitable for instrumentation signal conditioning, photodiode preamplification, active filtering, ADC driving, and level-shifting applications requiring stable component supply across industrial temperature ranges.
Supply support for AD8033ARZ-REEL 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 AD8033/AD8034 FastFET™ family was designed specifically for cost-sensitive, high-speed signal conditioning in instrumentation and sensor interfaces - combining FET input benefits with rail-to-rail output and robust industrial temperature operation.
FAQ
What is the maximum capacitive load the AD8033ARZ-REEL can drive without external compensation?
The AD8033ARZ-REEL is internally compensated to drive up to 35 pF with ≤30% overshoot at unity gain (G = +1). This allows direct connection to typical ADC input capacitances (e.g., 10–25 pF) and short PCB traces without added series resistance or feedback capacitor. For loads >35 pF, a small snub resistor (e.g., 10–25 Ω) in series with the output restores stability, as validated in Figure 12 of the AD8033/AD8034 datasheet Rev. D.
Does the AD8033ARZ-REEL support true single-supply operation with input common-mode voltage extending to the negative rail?
Yes - the AD8033ARZ-REEL supports true single-supply operation with input common-mode voltage ranging from 0 V to 2.0 V when powered from +5 V (per Table 2). Its FET input stage operates down to the negative rail (ground), and the bipolar-assisted input prevents phase reversal even when inputs exceed the positive rail - enabling robust level-shifting and sensor interfacing in 5 V systems.
What is the typical input offset voltage drift over temperature for the AD8033ARZ-REEL?
The AD8033ARZ-REEL exhibits a typical input offset voltage drift of 4 μV/°C, with a maximum of 30 μV/°C over the full industrial temperature range (−40°C to +85°C). This low drift ensures stable DC accuracy in precision sensor amplifiers and long-duration measurements without frequent zeroing, as confirmed in Table 2 (TA = 25°C, VS = 5 V) and Figure 35 of the datasheet.
Can the AD8033ARZ-REEL be used in dual-supply configurations, and what are the recommended supply voltages?
Yes - the AD8033ARZ-REEL operates from ±5 V to ±12 V dual supplies, with absolute maximum ratings up to ±13.2 V (26.4 V total). Performance data in Tables 1 and 3 confirm stable 80 MHz bandwidth and 80 V/μs slew rate at ±5 V and ±12 V. The device's wide 5 V to 24 V operating range makes it compatible with standard ±5 V, ±12 V, and ±15 V analog subsystems.
Is the AD8033ARZ-REEL pin-compatible with other op amps in the AD80xx family, such as the AD8034?
No - the AD8033ARZ-REEL (single-channel, 8-lead SOIC) is not pin-compatible with the AD8034 (dual-channel, 8-lead SOIC or SOT-23). While both share identical pin 1–4 and 6–8 assignments (NC, −IN, +IN, −VS, VOUT, +VS), the AD8034 repurposes pins 5 and 7 for second amplifier functions (−IN2, +IN2), whereas AD8033ARZ-REEL leaves them as NC. Direct substitution requires PCB redesign.
AD8033ARZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- FastFET™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 80V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 80 MHz
- Current - Input Bias:
- 1.5 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 3.3mA
- Current - Output / Channel:
- 60 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 24 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8033ARZ-REEL FAQ
1.How can I place an order for AD8033ARZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8033ARZ-REEL 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 AD8033ARZ-REEL reliable?
The price and inventory of AD8033ARZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8033ARZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8033ARZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8033ARZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8033ARZ-REEL?
AD8033ARZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8033ARZ-REEL 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 AD8033ARZ-REEL?
For technical support, including AD8033ARZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8033ARZ-REEL requirements.
6.How does Aetrix verify that AD8033ARZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8033ARZ-REEL 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 AD8033ARZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8033ARZ-REEL?
All AD8033ARZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8033ARZ-REEL, 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 AD8033ARZ-REEL part is unused and in its original packaging.
Return procedure for AD8033ARZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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