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Analog Devices Inc. AD848JRZ
- Part No.:
- AD848JRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD848JRZ.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,341
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Product details
Overview
AD848JRZ from Analog Devices is a high-speed, low-power monolithic operational amplifier optimized for closed-loop gains ≥5, featuring 175 MHz gain bandwidth, 300 V/µs slew rate (±15 V), 1 mV max input offset voltage, and stable operation into any capacitive load - used in video line drivers, 10-bit data acquisition systems, and RF signal conditioning.
For engineers reviewing the AD848JRZ datasheet, AD848JRZ pinout, AD848JRZ application, or AD848JRZ equivalent, this page delivers verified specifications, package mapping to SOIC-8, real-world settling behavior (100 ns to 0.1% for 10 V step), differential gain/phase performance (0.07%/0.088° at 4.4 MHz), and design-meaningful alternatives for video and instrumentation signal paths.
Technical Context
The AD848JRZ uses Analog Devices' junction-isolated complementary bipolar (CB) process to achieve high-speed AC performance with low quiescent current (4.8 mA at ±5 V). Its internal compensation ensures stability at closed-loop gains of 5 or greater without external components.
It delivers 13 V/mV open-loop gain into 500 Ω (±5 V), 92 dB minimum CMRR, and full-power bandwidth >20 MHz (2 Vp-p, ±5 V), while maintaining ±3 V output swing into 150 Ω loads - enabling direct drive of terminated coaxial cables and ADC front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth | 175 MHz at ±15 V - supports stable amplification up to ~35 MHz in unity-gain-configured video buffers when combined with proper layout. |
| Slew Rate | 300 V/µs at ±15 V - enables clean 10 Vp-p signal reproduction at ≤30 MHz without slewing distortion. |
| Input Offset Voltage | 1 mV max - eliminates need for external nulling in most video and DAQ applications; laser-trimmed at wafer level. |
| Differential Gain / Phase | 0.07% / 0.088° at 4.4 MHz - meets broadcast video fidelity requirements for composite NTSC/PAL line drivers. |
| Supply Current | 4.8 mA at ±5 V - enables low-power high-speed operation in portable test equipment and multi-channel instrumentation. |
| Output Swing | ±3 V into 150 Ω - drives standard 75 Ω video loads via series termination with minimal headroom loss. |
| Stability | Stable into any capacitive load - allows direct connection to long PCB traces, cables, or ADC input capacitance without isolation resistors. |
Pinout & Package
AD848JRZ is housed in an 8-lead Small Outline Integrated Circuit (SOIC) package (R-8), with standard op amp pinout and two nulling terminals for precision offset adjustment.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null | Connects to wiper of 10 kΩ potentiometer for manual input offset trimming; required only in ultra-low-error applications. |
| 2 | Inverting Input (–IN) | High-impedance differential input node; matched impedance (e.g., 500 Ω) minimizes bias current error in inverting configurations. |
| 3 | Non-Inverting Input (+IN) | High-impedance reference input; common-mode range extends to ±13.4 V on ±15 V supplies. |
| 4 | –VS | Negative supply rail; must be bypassed with 0.1 µF ceramic capacitor placed within 5 mm of pin. |
| 5 | Offset Null | Second null terminal; completes 3-terminal offset adjustment network with Pin 1 and external resistor divider. |
| 6 | Output | Capable of ±3 V swing into 150 Ω; drives 75 Ω coax with series 75 Ω termination for minimal reflections. |
| 7 | +VS | Positive supply rail; requires local 0.1 µF ceramic bypass to ground; supports ±4.5 V to ±18 V operation. |
| 8 | No Connect | Internally unused; must remain unconnected - no tie to ground or supply. |
Key Features
| Feature | Design Value |
|---|---|
| Internally compensated | Guarantees stability at closed-loop gains ≥5 without external compensation components or feedback tuning. |
| Laser wafer-trimmed offset | Reduces input offset to ≤1 mV max, eliminating external null circuitry in 95% of video and DAQ designs. |
| Capacitive load immunity | Operates stably with >1000 pF directly at output - enables direct interface to ADC inputs, long traces, and unterminated cables. |
| Low-noise bipolar architecture | 3 nV/√Hz input voltage noise (AD849) and 5 nV/√Hz (AD848) - preserves SNR in wideband pre-amplifier stages. |
| Video-optimized AC specs | 0.07% differential gain and 0.088° differential phase at 4.4 MHz meet SMPTE/EBU broadcast linearity standards. |
Applications
| Video Line Driver | 10-Bit Data Acquisition Front-End |
|---|---|
Use Scenario: Driving 75 Ω coaxial cable in broadcast monitoring equipment with ±5 V supplies. IC Role / Device Role / Timing Role: High-fidelity voltage buffer with minimal group delay and amplitude distortion across DC–30 MHz. Use Value: Maintains 0.07% differential gain and 0.088° phase error at 4.4 MHz, ensuring accurate color reproduction in composite video signals. |
Use Scenario: Signal conditioning stage before a 10-bit, 20 MSPS ADC in automated test equipment. IC Role / Device Role / Timing Role: Low-settling-time gain stage (100 ns to 0.1%) for fast step-response accuracy in sampling circuits. Use Value: Enables full-scale step response fidelity without overshoot or ringing, preserving effective number of bits (ENOB) in digitized waveforms. |
| RF Signal Generator Output Stage | Low-Power Instrumentation Amplifier Core |
Use Scenario: Final amplification stage in a benchtop RF signal generator delivering 0–20 MHz sine waves at ±2 Vp-p. IC Role / Device Role / Timing Role: Wideband, low-distortion output driver with harmonic distortion < –60 dBc at 10 MHz. Use Value: Delivers clean spectral purity without requiring post-filtering, reducing BOM count and board area in compact signal sources. |
Use Scenario: Precision gain block in portable oscilloscope vertical amplifier with ±15 V rails and thermal drift constraints. IC Role / Device Role / Timing Role: DC-coupled, low-drift amplifier core with 7 µV/°C offset drift and 92 dB CMRR. Use Value: Supports sub-mV baseline stability over 0–70°C ambient, enabling accurate DC-coupled measurements without recalibration. |
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 |
|---|---|---|---|
| LM6172IMX/NOPB | Unity-gain stable (vs. AD848JRZ's min gain = 5); 100 MHz GBW; higher 2.1 mA supply current. | Better suited for variable-gain or unity-gain buffer roles; less optimal for fixed-gain ≥5 video line driving where AD848JRZ's 175 MHz GBW provides margin. | Select LM6172IMX/NOPB when circuit topology requires unity-gain stability or lower power-supply sensitivity. |
| THS3201DGNR | Current-feedback architecture; 400 MHz bandwidth; 3000 V/µs slew rate; requires careful feedback resistor selection (not voltage-feedback compatible). | Higher speed but more sensitive to layout and feedback network parasitics; not drop-in replaceable due to different stability criteria and pinout. | Choose THS3201DGNR only for new designs targeting >200 MHz small-signal bandwidth where AD848JRZ's voltage-feedback limitations become binding. |
Compared with LM6172IMX/NOPB and THS3201DGNR, AD848JRZ offers superior differential video performance (0.07%/0.088°), guaranteed stability at G ≥ 5 without loop compensation, and lower quiescent current - making it the preferred choice for cost-sensitive, fixed-gain video and DAQ signal chains where precision timing and low power are prioritized over ultimate bandwidth.
Availability
AD848JRZ is available at Aetrix Electronics and suitable for video line drivers, 10-bit data acquisition systems, and RF signal generator output stages requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for AD848JRZ 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 Wilmington, MA.
The AD848JRZ belongs to Analog Devices' high-speed voltage-feedback op amp product line, designed specifically for precision video, instrumentation, and data acquisition applications demanding low distortion, fast settling, and robust capacitive-load drive capability.
FAQ
What is the minimum stable closed-loop gain for AD848JRZ?
The AD848JRZ is internally compensated and specified as stable for closed-loop gains of 5 or greater. It is not unity-gain stable; attempting G = 1 or G = 2 will result in peaking or oscillation. For unity-gain applications, consider the AD847 or LM6172 instead. The AD848JRZ datasheet explicitly states "stable for closed loop gains of 5 or greater" under Product Description and Applications Highlights sections.
Does AD848JRZ require external offset nulling in typical applications?
No - AD848JRZ features laser wafer-trimmed input offset voltage ≤1 mV max, eliminating the need for external nulling in most video, DAQ, and RF applications. Only ultra-high-precision systems demanding sub-100 µV offset (e.g., metrology-grade integrators) should use the Pin 1/Pin 5 nulling terminals with a 10 kΩ potentiometer as shown in Figure 3 of the AD848/AD849 datasheet.
Can AD848JRZ drive a 75 Ω coaxial cable directly?
Yes - AD848JRZ can drive a 75 Ω coaxial cable using series termination: place a 75 Ω resistor between the AD848JRZ output (Pin 6) and the cable. This configuration leverages the AD848JRZ's ±3 V output swing into 150 Ω and its stability into capacitive loads, delivering clean 1 Vp-p signals up to 24 MHz on doubly terminated lines, as validated in Figure 22 of the AD848/AD849 datasheet.
What is the maximum supply voltage rating for AD848JRZ?
The absolute maximum supply voltage for AD848JRZ is ±18 V, per the Absolute Maximum Ratings table on page 4 of the AD848/AD849 datasheet. Operation beyond this risks permanent damage. Recommended operating range is ±4.5 V to ±18 V, with full parametric performance guaranteed across ±5 V and ±15 V supplies as specified in both AD848J and AD848A/S columns.
Is AD848JRZ pin-compatible with other SOIC-8 op amps like OP27 or AD822?
No - AD848JRZ has a unique SOIC-8 pinout including dedicated offset null pins (Pins 1 and 5) and a no-connect pin (Pin 8), unlike standard dual-op-amp layouts. OP27 uses DIP-8/SOIC-8 with different pin assignments (e.g., Pin 1 = offset null, Pin 8 = +VS), and AD822 is a dual op amp with fully different pin mapping. Direct replacement requires PCB redesign; AD848JRZ must be treated as a standalone single-channel high-speed op amp layout.
AD848JRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 300V/µs
- Gain Bandwidth Product:
- 175 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3.3 µA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 5.1mA
- Current - Output / Channel:
- 32 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:
- 8-SOIC
AD848JRZ FAQ
1.How can I place an order for AD848JRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD848JRZ 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 AD848JRZ reliable?
The price and inventory of AD848JRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD848JRZ is usually 5 days.
3.What payment methods are accepted for AD848JRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD848JRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD848JRZ?
AD848JRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD848JRZ 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 AD848JRZ?
For technical support, including AD848JRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD848JRZ requirements.
6.How does Aetrix verify that AD848JRZ is sourced from the original manufacturer or authorized distributors?
All AD848JRZ 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 AD848JRZ meets industry standards.
7.What is the process for return or replacement of AD848JRZ?
All AD848JRZ units undergo pre-shipment inspection (PSI). If there is an issue with AD848JRZ, 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 AD848JRZ part is unused and in its original packaging.
Return procedure for AD848JRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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