Part A
AD706ARZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2929 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD706JR is a functionally compatible replacement candidate for the AD706ARZ, sharing the same dual low-power op-amp core, package footprint, and supply range, with the primary distinction being the specified temperature grade. Designers should confirm that the JR-grade temperature range satisfies the target application's thermal requirements before substituting.
Amplifier Core and Channel Count
High match
Package Type and Pinout
High match
Supply Voltage Range
High match
Operating Temperature Grade
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD706ARZ | AD706JR | Why it matters |
|---|---|---|---|
| Package / Mounting Type | 8-Lead SOIC (surface mount) | 8-Lead SOIC (surface mount) | Both are SOIC-8, so footprint is compatible; however grade differs, affecting guaranteed specifications. |
| Temperature Grade / Operating Range | Industrial: -40°C to +85°C | Commercial: 0°C to +70°C | The ARZ grade supports wider temperature operation, making it suitable for harsher environments where the JR grade is not guaranteed. |
| Input Offset Voltage (max) | 50 µV (A grade) | 150 µV (J grade) | Lower offset improves DC accuracy; the ARZ grade offers tighter guaranteed offset than the JR grade. |
| Input Offset Voltage Drift (max) | 0.5 µV/°C (A grade) | 1.0 µV/°C (J grade) | Lower drift maintains accuracy over temperature; the ARZ grade is more stable across the operating range. |
| Input Bias Current (max) | 100 pA (A grade) | 150 pA (J grade) | Low bias current is critical for high-impedance sensor interfaces; the ARZ grade guarantees a tighter limit. |
| Input Offset Current (max) | 50 pA (A grade) | 75 pA (J grade) | Lower offset current reduces error in precision instrumentation; the ARZ grade provides a tighter specification. |
| Gain Bandwidth Product | 800 kHz (typical) | 800 kHz (typical) | Identical typical bandwidth means AC response is comparable between the two grades. |
| Supply Current per Amplifier (max) | 600 µA (A grade) | 600 µA (J grade) | Low quiescent current suits battery-powered precision applications; both grades share the same typical limit. |
| Supply Voltage Range | ±2.0 V to ±18 V (dual supply) | ±2.0 V to ±18 V (dual supply) | Identical supply range allows either grade to operate in the same circuit rails without redesign. |
| Grade / Screening Level | A grade (industrial, tighter specs) | J grade (commercial, looser specs) | The grade determines guaranteed limits and temperature range; ARZ is a higher-precision, wider-temperature variant of the same die. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD706ARZ | AD706JR |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | General Purpose | General Purpose |
| Number of Circuits | 2 | 2 |
| Slew Rate | 0.15V/µs | 0.15V/µs |
| Gain Bandwidth Product | 800 kHz | 800 kHz |
| -3 dB Bandwidth | 800 kHz | 800 kHz |
| Current - Input Bias | 50 pA | 50 pA |
| Voltage - Input Offset | 30 µV | 30 µV |
| Supply Current | 750µA | 750µA |
| Current - Output / Channel | 15 mA | 15 mA |
| Voltage - Supply Span(Min) | 4 V | 4 V |
| Voltage - Supply Span(Max) | 36 V | 36 V |
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary differences between the AD706ARZ and AD706JR?
The AD706ARZ and AD706JR are both dual, low-power bipolar op amps from Analog Devices, but they differ in grade and packaging. The AD706ARZ is the A-grade version in an 8-lead SOIC package (RoHS-compliant, Z suffix), while the AD706JR is the J-grade version in an 8-lead SOIC package. The A grade offers tighter guaranteed specifications, such as lower input offset voltage and offset drift, compared to the J grade.
Are the AD706ARZ and AD706JR pin-compatible?
Yes. Both devices are offered in the same 8-lead SOIC (R-8) package with identical pinout: Pin 1 = OUT A, Pin 2 = -IN A, Pin 3 = +IN A, Pin 4 = V-, Pin 5 = +IN B, Pin 6 = -IN B, Pin 7 = OUT B, Pin 8 = V+. This allows them to share the same PCB footprint, though electrical grade differences must be considered.
What are the key guaranteed specifications that differ between the A and J grades?
The A grade (AD706ARZ) guarantees tighter input offset voltage (typically 50 µV max at 25°C versus 150 µV max for the J grade) and lower input offset voltage drift. The A grade also specifies tighter input bias current and noise performance over the full temperature range. Designers should consult the respective datasheet tables for the exact guaranteed limits before substituting one grade for the other.
Can the AD706JR be used as a drop-in replacement for the AD706ARZ?
Physically, yes, since both use the same 8-lead SOIC package and pinout. Electrically, the J grade has wider guaranteed tolerances than the A grade. A drop-in replacement is acceptable only if the application can tolerate the looser offset voltage, drift, and bias current limits of the J grade. The substitution should be validated against the AD706 datasheet specifications for the target circuit.
What is the supply voltage range and quiescent current for both devices?
Both the AD706ARZ and AD706JR operate from a dual supply of ±2 V to ±18 V (or a single supply of 4 V to 36 V). The typical quiescent supply current is approximately 400 µA per amplifier (800 µA total for the dual), making them suitable for low-power precision signal conditioning. These parameters are common to both grades.
Do both parts share the same temperature range and package material?
Both the AD706ARZ and AD706JR are specified for the industrial temperature range of -40°C to +85°C. Both are supplied in 8-lead SOIC packages. The "Z" suffix on the AD706ARZ indicates RoHS-compliant lead-free construction, while the AD706JR is the standard (non-Z) ordering code; designers should verify the RoHS status of the specific J-grade order code with the manufacturer or distributor.
What are the typical applications for the AD706 dual op amp?
The AD706 is commonly used in precision instrumentation, active filters, integrators, and low-frequency signal conditioning where low input bias current and low power consumption are important. Both the A and J grades suit these applications, but the A grade is preferred where tighter offset and drift specifications are required over temperature.