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Analog Devices Inc. AD843JRZ-16
- Part No.:
- AD843JRZ-16
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AD843JRZ-16.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:335
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Product details
Overview
AD843JRZ-16 from Analog Devices is a high-speed, CBFET-input operational amplifier optimized for precision 12-bit data acquisition systems. It delivers 34 MHz unity-gain bandwidth, 250 V/µs slew rate, and 135 ns settling time to 0.01% for 10 V step - enabling accurate buffering in fast D/A and A/D converter interfaces, sample-and-hold amplifiers, and active filter stages.
For engineers reviewing the AD843JRZ-16 datasheet, AD843JRZ-16 pinout, AD843JRZ-16 application, or AD843JRZ-16 equivalent, key selection criteria include its FET-input low bias current (0.6 nA typ), stability at unity gain without external compensation, and SOIC-16 package compatibility with high-density PCB layouts for test equipment and instrumentation signal chains.
Technical Context
The AD843JRZ-16 uses Analog Devices' junction-isolated complementary bipolar (CB) process, combining FET-input DC precision with wideband AC performance. Its CBFET input stage achieves 0.6 nA typical input bias current while sustaining 34 MHz bandwidth and 250 V/µs slew rate - a combination unattainable in conventional bipolar op amps.
It operates stably at closed-loop gains ≥1 without external compensation across –40°C to +85°C, supports ±15 V supplies (±4.5 V to ±18 V operating range), and features offset null pins for fine-tuning - critical for high-accuracy integrators and precision signal conditioning where drift and settling error must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity Gain Bandwidth | 34 MHz - enables stable operation in unity-gain buffer configurations up to video frequencies. |
| Settling Time (to 0.01%) | 135 ns for 10 V step - ensures fidelity in 12-bit DAC/ADC interface timing with <1 LSB error. |
| Slew Rate | 250 V/µs - supports full-scale transitions in <40 ns for ±10 V output swing into 500 Ω load. |
| Input Bias Current | 0.6 nA typical - minimizes voltage error in high-impedance sensor interfaces and integrator feedback paths. |
| Input Offset Voltage | 1 mV max (J-grade) - reduces static error in precision gain stages without trimming in most applications. |
| Supply Voltage Range | ±4.5 V to ±18 V - accommodates industrial ±12 V and legacy ±15 V systems without rail-to-rail constraints. |
| Output Current | 50 mA minimum - drives 500 Ω loads directly, eliminating need for external buffer stages in active filters. |
Pinout & Package
AD843JRZ-16 is housed in a 16-pin Small Outline Integrated Circuit (SOIC) package (R-16), with 1.27 mm pitch, 10.0–10.65 mm body width, and 7.4–7.6 mm body length. Thermal resistance θJA = 100°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null | Connects to external potentiometer for manual input offset adjustment; required only in ultra-low-drift applications. |
| 2 | Inverting Input (–) | Differential input node; high-impedance CBFET input with 1010 Ω resistance and 6 pF capacitance. |
| 3 | Noninverting Input (+) | Differential input node; matched to Pin 2 for common-mode rejection >72 dB at ±10 V. |
| 4 | V– | Negative supply rail connection; must be bypassed with 0.1 µF ceramic + 2.2 µF tantalum near pin. |
| 5 | Offset Null | Second terminal of offset null potentiometer; completes 3-terminal nulling network with Pin 1 and V–. |
| 6 | Output | Capable of ±11.5 V swing into 500 Ω; drives capacitive loads up to 20 pF directly, or >400 pF with CF compensation. |
| 7 | V+ | Positive supply rail connection; requires same bypassing as Pin 4 for high-frequency stability. |
| 8 | NC | No internal connection; electrically isolated - may be left floating or grounded per layout best practice. |
| 9–16 | NC | All remaining pins (9–16) are no-connect; confirmed by Analog Devices R-16 package drawing and pin map. |
Key Features
| Feature | Design Value |
|---|---|
| FET-input low bias current | 0.6 nA typical enables high-Z sensor interfacing and long-time-constant integrators without leakage-induced drift. |
| Unity-gain stable without compensation | Eliminates external components in buffer and gain-of-one configurations, reducing BOM count and layout area. |
| 135 ns settling to 0.01% | Meets timing budgets for 12-bit SAR ADCs sampling at ≥5 MSPS with minimal aperture uncertainty. |
| Laser-trimmed input offset | 1 mV max (J-grade) reduces calibration overhead in production test for medical and test equipment signal chains. |
| Full-power bandwidth of 3.9 MHz | Supports undistorted 20 VPP sine wave output - sufficient for video line drivers and IF signal conditioning. |
Applications
| High-Speed Sample-and-Hold Amplifier | High-Bandwidth Active Filter |
|---|---|
Use Scenario: Capturing transient signals in automated test equipment with sub-microsecond acquisition and hold phases. IC Role / Device Role / Timing Role: Buffer and settle analog input before hold capacitor isolation; provides 135 ns settling to preserve 12-bit accuracy during aperture window. Use Value: Enables 1 µs total acquisition time with 50 ns aperture delay - critical for high-throughput digitizers and radar pulse capture. | Use Scenario: Implementing 5th-order Butterworth anti-aliasing filters in data acquisition front-ends. IC Role / Device Role / Timing Role: Active gain stage and integrator core; leverages 34 MHz bandwidth to maintain phase linearity up to 3 MHz. Use Value: Achieves <0.025% differential gain/phase error at 4.4 MHz - meets broadcast video and instrumentation spectral purity requirements. |
| High-Speed Integrator | High-Frequency Signal Conditioning |
Use Scenario: Precision ramp generation and waveform synthesis in function generators and laser control systems. IC Role / Device Role / Timing Role: Core integrator with low input bias current minimizing drift; driven by fast-settling DAC output. Use Value: 0.6 nA bias current limits integration error to <1 mV/s drift - extends usable ramp duration beyond 1 second without reset. | Use Scenario: Amplifying and conditioning RF detector outputs or IF signals in communications receivers. IC Role / Device Role / Timing Role: Wideband gain block with 250 V/µs slew rate preserving fast envelope transitions in AM/FM demodulation. Use Value: 3.9 MHz full-power bandwidth supports 20 VPP modulation envelopes up to 3.5 MHz - suitable for IF strip amplification in SDR front-ends. |
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 |
|---|---|---|---|
| OPA600ID | Higher 400 V/µs slew rate but 20 MHz bandwidth; 1.5 nA input bias current; SO-8 package. | Better for ultra-fast pulse amplification but lower bandwidth limits filter use above 15 MHz. | Select OPA600ID when slew rate dominates over bandwidth and SO-8 footprint is preferred. |
| AD847ARZ-16 | Lower 50 MHz bandwidth but 100 V/µs slew rate; 25 nA input bias; same SOIC-16 package and pinout. | Optimized for lower power (7 mA vs. 13 mA) and cost-sensitive video buffers, not precision integrators. | Select AD847ARZ-16 when power efficiency and video gain staging are priorities over settling accuracy. |
Compared with OPA600ID and AD847ARZ-16, the AD843JRZ-16 uniquely balances 34 MHz bandwidth, 250 V/µs slew rate, and 0.6 nA bias current in SOIC-16 - making it the only choice for 12-bit data path buffering where both speed and DC precision are simultaneously required.
Availability
AD843JRZ-16 is available at Aetrix Electronics and suitable for high-speed data acquisition, precision instrumentation, and test equipment requiring stable component supply across commercial temperature range (0°C to +70°C).
Supply support for AD843JRZ-16 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, headquartered in Norwood, MA.
The AD843JRZ-16 belongs to Analog Devices' wideband operational amplifier family, engineered specifically for high-fidelity signal conditioning in precision data conversion and real-time measurement systems.
FAQ
What is the maximum capacitive load the AD843JRZ-16 can drive without compensation?
The AD843JRZ-16 can drive up to 20 pF directly without degradation of settling or overshoot. For larger loads (e.g., 400 pF), a 15 pF feedback capacitor (CF) must be added between output and inverting input, as shown in Figure 21a of the AD843JRZ-16 datasheet. This configuration maintains <20% overshoot while preserving stability - critical for driving ADC input capacitance or long PCB traces.
Does the AD843JRZ-16 require external compensation for unity-gain operation?
No, the AD843JRZ-16 is internally compensated and remains stable at closed-loop gains of 1 or greater across its full operating temperature range (0°C to +70°C). This eliminates the need for external compensation networks, simplifying design of unity-gain buffers used in ADC front-ends and signal distribution networks - a key advantage over many competing high-speed op amps.
What is the input offset voltage specification for the AD843JRZ-16?
The AD843JRZ-16 has a maximum input offset voltage of 1 mV at +25°C (J-grade), with a typical value of 0.5 mV. Over the full commercial temperature range (0°C to +70°C), offset drift is specified at 12 µV/°C - enabling high-accuracy gain stages in medical instrumentation and calibrated test equipment without frequent recalibration.
Can the AD843JRZ-16 operate from ±12 V supplies?
Yes, the AD843JRZ-16 supports supply voltages from ±4.5 V to ±18 V, making ±12 V operation fully compliant. At ±12 V, it delivers ±10.5 V output swing into 500 Ω and maintains 34 MHz bandwidth and 135 ns settling - ideal for industrial PLC analog I/O modules and legacy instrumentation that standardize on ±12 V rails.
Is the AD843JRZ-16 pin-compatible with other AD843 variants like AD843JR-16?
Yes, the AD843JRZ-16 and AD843JR-16 share identical pinout, electrical specifications, and SOIC-16 (R-16) package dimensions. The "Z" suffix denotes tape-and-reel packaging per EIA-481A, while "R" indicates bulk packaging - both are functionally and mechanically interchangeable in PCB layout and circuit design.
AD843JRZ-16 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 250V/µs
- Gain Bandwidth Product:
- 34 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 12mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
AD843JRZ-16 FAQ
1.How can I place an order for AD843JRZ-16 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD843JRZ-16 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 AD843JRZ-16 reliable?
The price and inventory of AD843JRZ-16 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD843JRZ-16 is usually 5 days.
3.What payment methods are accepted for AD843JRZ-16?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD843JRZ-16 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD843JRZ-16?
AD843JRZ-16 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD843JRZ-16 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 AD843JRZ-16?
For technical support, including AD843JRZ-16 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD843JRZ-16 requirements.
6.How does Aetrix verify that AD843JRZ-16 is sourced from the original manufacturer or authorized distributors?
All AD843JRZ-16 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 AD843JRZ-16 meets industry standards.
7.What is the process for return or replacement of AD843JRZ-16?
All AD843JRZ-16 units undergo pre-shipment inspection (PSI). If there is an issue with AD843JRZ-16, 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 AD843JRZ-16 part is unused and in its original packaging.
Return procedure for AD843JRZ-16:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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