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Analog Devices Inc. AD843JRZ-16-REEL7
- Part No.:
- AD843JRZ-16-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AD843JRZ-16-REEL7.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:146
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Product details
Overview
AD843JRZ-16-REEL7 from Analog Devices is a high-speed, CBFET-input operational amplifier optimized for precision wideband signal conditioning. It delivers 34 MHz unity-gain bandwidth, 250 V/µs slew rate, and 135 ns settling time to 0.01% for a 10 V step - enabling accurate buffering in 12-bit DAC/ADC interfaces and fast sample-and-hold circuits. Its 0.6 nA typical input bias current and ±15 V supply operation support low-error, high-fidelity analog front-ends in test equipment and instrumentation.
For engineers reviewing the AD843JRZ-16-REEL7 datasheet, AD843JRZ-16-REEL7 pinout, AD843JRZ-16-REEL7 application, or AD843JRZ-16-REEL7 equivalent, key selection criteria include its guaranteed stability at unity gain, no external compensation requirement, low input bias current across temperature, and SOIC-16 packaging suitable for automated assembly in high-reliability analog systems.
Technical Context
The AD843JRZ-16-REEL7 uses Analog Devices' junction-isolated complementary bipolar (CB) process, combining FET-input DC precision with bipolar AC speed. Its fully differential input stage enables high common-mode rejection (72 dB at ±10 V) and low input voltage noise (19 nV/√Hz at 10 kHz), supporting clean signal amplification in noisy environments.
This op amp operates stably at closed-loop gains ≥1 without external compensation, thanks to internal frequency compensation tailored for the SOIC-16 package's parasitic capacitance. Its 50 mA minimum output drive capability into 500 Ω loads supports direct interfacing with active filters, integrators, and capacitive-load buffers up to 410 pF when configured with feedback capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity Gain Bandwidth | 34 MHz - enables stable amplification of signals up to video bandwidth without peaking or instability. |
| Settling Time (0.01%) | 135 ns for 10 V step - ensures accurate capture in high-speed data acquisition and S/H circuits. |
| Slew Rate | 250 V/µs - supports full-scale transient response in pulse amplification and fast waveform generation. |
| Input Bias Current | 0.6 nA typ at +25°C - minimizes voltage error in high-impedance sensor interfaces and integrator timing. |
| Input Voltage Noise | 19 nV/√Hz at 10 kHz - preserves SNR in low-level signal amplification stages before ADCs. |
| Open Loop Gain | 30 V/mV into 500 Ω - provides >100 dB loop gain at DC, ensuring high DC accuracy in closed-loop configurations. |
| Supply Voltage Range | ±4.5 V to ±18 V - allows flexible rail selection for industrial (±12 V) or precision lab (±15 V) power domains. |
Pinout & Package
AD843JRZ-16-REEL7 is housed in a 16-pin small-outline integrated circuit (SOIC) package (R-16), compliant with JEDEC MS-012AC, with 1.27 mm pitch and gull-wing leads. The package supports surface-mount reflow assembly and offers thermal resistance θJA = 100°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null | Connects to external potentiometer for fine-tuning input offset voltage; optional in most applications due to laser-trimmed 1 mV max spec. |
| 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 CMRR optimization and balanced signal routing. |
| 4 | V– (Negative Supply) | Connects to negative rail (e.g., –15 V); must be bypassed with 0.1 µF ceramic + 2.2 µF tantalum near pin. |
| 5 | Offset Null | Second terminal of offset null potentiometer; used with Pin 1 for manual calibration if required. |
| 6 | Output | Capable of sourcing/sinking ≥50 mA into 500 Ω; drives active filters, cables, and capacitive loads up to 410 pF with CF compensation. |
| 7 | V+ (Positive Supply) | Connects to positive rail (e.g., +15 V); requires same bypassing as Pin 4 for high-frequency stability. |
| 8 | NC | No internal connection; left unconnected per datasheet - not used for thermal or shielding purposes. |
| 9–16 | NC | All remaining pins (9–16) are no-connect; SOIC-16 footprint accommodates future variants but unused here. |
Key Features
| Feature | Design Value |
|---|---|
| Stable at unity gain | No external compensation required - simplifies PCB layout and eliminates tuning components in buffer/gain=1 designs. |
| Laser wafer trimming | Guarantees input offset voltage ≤1 mV (AD843K/B grade) - reduces system calibration burden in precision measurement paths. |
| High slew rate + low bias current | 250 V/µs slew with 0.6 nA bias - uniquely enables both fast transient response and minimal input loading in S/H and integrator topologies. |
| Full-power bandwidth | 3.9 MHz at 20 Vpp - supports distortion-free amplification of high-amplitude, medium-frequency signals in signal generators. |
| Wide supply range | Operates from ±4.5 V to ±18 V - allows compatibility with legacy ±12 V industrial rails and modern ±15 V test equipment supplies. |
Applications
| High-Speed Sample-and-Hold Amplifiers | High-Bandwidth Active Filters |
|---|---|
|
Use Scenario: Acquiring precise analog samples for 12-bit ADCs in automated test equipment with sub-microsecond aperture delay requirements. IC Role / Device Role / Timing Role: Buffer and hold amplifier in noninverting open-loop architecture; settles to 0.01% in 135 ns to minimize sampling error. Use Value: Enables 1 µs total acquisition time with 50 ns aperture delay - critical for high-throughput digitization of fast transients. |
Use Scenario: Implementing 4th-order Butterworth low-pass filtering at 1–5 MHz in RF receiver IF chains and spectrum analyzers. IC Role / Device Role / Timing Role: Gain stage and integrator core in multiple-feedback (MFB) and state-variable filter topologies. Use Value: Maintains phase linearity and <0.025% differential gain/phase error at 4.4 MHz - preserves video and communication signal fidelity. |
| High-Speed Integrators | High-Frequency Signal Conditioning |
|
Use Scenario: Generating linear ramp waveforms for time-of-flight measurements and laser pulse modulation in industrial sensors. IC Role / Device Role / Timing Role: Precision integrator with low input bias current (0.6 nA) minimizing drift-induced integration error over time. Use Value: Achieves <10 µV/s droop rate with 1 nF capacitor - extends usable integration window beyond 100 ms without recalibration. |
Use Scenario: Conditioning low-amplitude sensor outputs (e.g., piezoelectric accelerometers) prior to ADC in vibration monitoring systems. IC Role / Device Role / Timing Role: Low-noise, high-slew preamplifier with 19 nV/√Hz input noise and 34 MHz bandwidth for wide-dynamic-range capture. Use Value: Preserves signal integrity from DC to 10 MHz while rejecting common-mode interference via 72 dB CMRR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, FET-input operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA600ID | Higher 500 V/µs slew rate but wider 5.5 mA quiescent current; 20 MHz bandwidth; DIP-8/SOIC-8 only. | Preferred where ultra-fast slewing dominates over power efficiency; less suitable for space-constrained SOIC-16 layouts. | Select OPA600ID only when >250 V/µs is mandatory and board area permits smaller 8-pin footprint. |
| AD8065ARZ | FET-input, 145 MHz bandwidth, 180 V/µs slew, 1.4 mA IQ; SOIC-8; no offset null pins; lower input bias (1 pA). | Better for low-power, high-frequency (>10 MHz) applications but lacks AD843JRZ-16-REEL7's 0.01% settling guarantee and unity-gain stability margin. | Choose AD8065ARZ for RF/IF gain blocks; retain AD843JRZ-16-REEL7 for precision S/H and integrator circuits requiring proven 135 ns settling. |
Compared with OPA600ID and AD8065ARZ, AD843JRZ-16-REEL7 uniquely balances 34 MHz bandwidth, 135 ns 0.01% settling, and unity-gain stability in a 16-pin SOIC - making it the preferred choice for legacy-compatible, high-accuracy analog signal chains where layout simplicity and deterministic performance outweigh raw speed or ultra-low power.
Availability
AD843JRZ-16-REEL7 is available at Aetrix Electronics and suitable for high-speed data acquisition, precision instrumentation, and industrial test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD843JRZ-16-REEL7 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 AD843 belongs to Analog Devices' wideband precision op amp family, engineered specifically for demanding analog signal conditioning in test & measurement, medical imaging, and high-fidelity data conversion systems.
FAQ
What is the operating temperature range for AD843JRZ-16-REEL7?
The AD843JRZ-16-REEL7 is rated for the commercial temperature range of 0°C to +70°C. This grade (J suffix) is validated for use in laboratory instruments, benchtop test gear, and non-industrial embedded systems where ambient conditions remain within this envelope. Its specifications - including 135 ns settling time and 250 V/µs slew rate - are guaranteed across this full range, with input bias current rising to 60 pA at extremes.
Does AD843JRZ-16-REEL7 require external compensation capacitors?
No, AD843JRZ-16-REEL7 does not require external compensation capacitors for stable operation at closed-loop gains of 1 or greater. Its internal compensation is optimized for the SOIC-16 package parasitics, enabling immediate use in unity-gain buffer and inverting amplifier configurations without added components. External feedback capacitance (e.g., 5–47 pF) is only recommended when driving capacitive loads >20 pF to suppress ringing.
Can AD843JRZ-16-REEL7 drive heavy capacitive loads directly?
AD843JRZ-16-REEL7 can drive up to 20 pF capacitive load without degradation in rated performance. For heavier loads (e.g., 100–410 pF), the datasheet recommends using a feedback capacitor (CF) and optionally a series 10 Ω resistor at the output - as shown in Figure 21a - to maintain stability and reduce overshoot. Direct connection to >20 pF without compensation risks peaking and oscillation.
What is the purpose of Pins 1 and 5 on AD843JRZ-16-REEL7?
Pins 1 and 5 on AD843JRZ-16-REEL7 are offset null terminals, designed for connection to a 10 kΩ potentiometer to manually adjust input offset voltage. While laser wafer trimming ensures ≤1 mV max offset in the AD843JRZ-16-REEL7, these pins provide fine calibration capability in ultra-precision applications such as metrology-grade integrators or zero-drift sensor interfaces where sub-100 µV offsets matter.
Is AD843JRZ-16-REEL7 pin-compatible with other AD843 variants?
Yes, AD843JRZ-16-REEL7 shares identical pinout and electrical behavior with all AD843 variants in the 16-pin SOIC (R-16) package, including AD843JR-16 and AD843JR-16-REEL. Differences between grades (J, K, A, B, S) relate solely to temperature rating, screening, and tested limits - not pin function or physical layout. The "Z" suffix denotes lead-free RoHS-compliant finish, and "REEL7" indicates 7-inch tape-and-reel packaging per EIA-481A.
AD843JRZ-16-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-REEL7 FAQ
1.How can I place an order for AD843JRZ-16-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD843JRZ-16-REEL7 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-REEL7 reliable?
The price and inventory of AD843JRZ-16-REEL7 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-REEL7 is usually 5 days.
3.What payment methods are accepted for AD843JRZ-16-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD843JRZ-16-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD843JRZ-16-REEL7?
AD843JRZ-16-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD843JRZ-16-REEL7 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-REEL7?
For technical support, including AD843JRZ-16-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD843JRZ-16-REEL7 requirements.
6.How does Aetrix verify that AD843JRZ-16-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD843JRZ-16-REEL7 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-REEL7 meets industry standards.
7.What is the process for return or replacement of AD843JRZ-16-REEL7?
All AD843JRZ-16-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD843JRZ-16-REEL7, 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-REEL7 part is unused and in its original packaging.
Return procedure for AD843JRZ-16-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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