Part A
AD8510BRZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3148 PCS
- Series
- Linear - Amplifiers - Instrumentation, Op Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD8510BRZ and AD8512BR are both precision JFET-input operational amplifiers from the same Analog Devices family, sharing identical supply voltage range, input bias current characteristics, and unity-gain stability. The primary distinction is channel count: the AD8510BRZ is a single-channel device while the AD8512BR is a dual-channel device. For single-amplifier circuit positions, the AD8510BRZ is the direct fit; the AD8512BR can serve as a functional substitute only where the additional channel is acceptable and board layout permits. Verify package footprint and channel count requirements before substitution.
Channel Count
Not compatible
Package Type
Validation required
Supply Voltage Range
High match
Input Bias Current
High match
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8510BRZ | AD8512BR | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 1 | 2 | Determines how many independent signal channels are available in a single package; a dual cannot directly replace a single in a one-channel circuit without layout changes. |
| Input Offset Voltage (max) | 0.8 mV | 0.8 mV | Sets the DC accuracy floor of the amplifier; matching values mean comparable precision in DC-coupled signal chains. |
| Input Bias Current (typ) | 25 pA | 25 pA | Low bias current minimizes errors in high-impedance and photodiode circuits; identical values indicate equivalent high-impedance performance. |
| Gain Bandwidth Product | 8 MHz | 8 MHz | Defines the closed-loop bandwidth achievable; equal GBW means similar AC response and stability for a given gain configuration. |
| Slew Rate | 20 V/µs | 20 V/µs | Limits large-signal transient response; matching slew rates ensure comparable behavior for fast pulses and high-frequency signals. |
| Input Voltage Noise Density | 8 nV/√Hz | 8 nV/√Hz | Determines the noise floor of the signal chain; identical noise density means equivalent low-noise performance in sensitive applications. |
| Supply Voltage Range | ±4.5 V to ±18 V | ±4.5 V to ±18 V | Defines the operating supply window; matching ranges allow the same power rails to be used in either design. |
| Supply Current per Amplifier (typ) | 2.2 mA | 2.2 mA | Affects power budget and thermal design; equal per-amplifier current means comparable power consumption per channel. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Package footprint and pinout must match for board-level interchangeability; both use the same SOIC outline but pin functions differ between single and dual. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8510BRZ | AD8512BR |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 1 | 2 |
| Slew Rate | 20V/µs | 20V/µs |
| Gain Bandwidth Product | 8 MHz | 8 MHz |
| Current - Input Bias | 25 pA | 25 pA |
| Voltage - Input Offset | 80 µV | 80 µV |
| Supply Current | 2.2mA | 2.2mA (x2 Channels) |
| Current - Output / Channel | 70 mA | 70 mA |
| Voltage - Supply Span(Min) | - | 10 V |
| Voltage - Supply Span(Max) | - | 30 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | AD8510 | - |
| Voltage - Supply Span (Min) | 9 V | - |
| Voltage - Supply Span (Max) | 36 V | - |
| Packaging | Tube | - |
Frequently asked questions
What are the primary differences between the AD8510BRZ and AD8512BR?
The AD8510BRZ is a single-channel precision JFET-input operational amplifier in an 8-lead SOIC package, while the AD8512BR is a dual-channel version of the same amplifier family in an 8-lead SOIC package. Both share the same core JFET-input architecture, low offset voltage, low input bias current, and low noise characteristics, but differ in channel count and pinout.
Are the AD8510BRZ and AD8512BR pin-compatible?
No. The AD8510BRZ (single) and AD8512BR (dual) use different pinouts on the same 8-lead SOIC footprint. The single device uses pins for offset null and no second channel, while the dual device assigns pins to the second amplifier. They cannot be dropped into the same PCB layout without redesign.
Do the AD8510BRZ and AD8512BR share the same electrical specifications per amplifier?
Yes. Both are members of the same AD8510/AD8512/AD8513 family and are specified with the same per-amplifier performance, including low offset voltage (B grade), low input bias current, low input voltage noise, and high open-loop gain. The dual AD8512BR essentially provides two matched AD8510BRZ-grade amplifiers in one package.
What is the input bias current of these JFET-input amplifiers?
Both the AD8510BRZ and AD8512BR feature very low input bias current typical of JFET-input op amps, on the order of a few picoamperes at room temperature, making them suitable for high-impedance sensor and photodiode front-end applications. Exact limits should be confirmed on the respective manufacturer datasheet.
Can the AD8512BR replace two AD8510BRZ devices in a design?
Functionally, the AD8512BR provides two amplifiers with equivalent per-channel performance to the AD8510BRZ, so it can replace two single devices where board space and pinout allow. However, the PCB layout must be redesigned for the dual pinout, and any offset-null circuitry used with the single device must be re-evaluated.
What package do the AD8510BRZ and AD8512BR use?
Both the AD8510BRZ and AD8512BR are offered in an 8-lead SOIC package (the "RZ" and "R" suffixes denote SOIC). The "B" grade indicates the higher-precision offset voltage grade within the family.
Are the AD8510BRZ and AD8512BR suitable for the same supply voltage range?
Yes. Both devices operate from the same dual-supply range specified for the AD8510/AD8512 family, typically ±5 V to ±15 V, and are characterized for the same operating conditions. Designers should verify the exact supply limits and specifications on the manufacturer datasheet for the specific grade.