Part A
AD8132ARMZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 6696 個数
- Package
- MSOP-8
- Series
- リニアアンプ - 計装用、オペアンプ、バッファアンプ
Replacement verdict
Compatible functional replacement candidate
The AD8132ARMZ and AD8131ARM are both differential line drivers in the same 8-lead MSOP package, but they are not identical drop-in replacements. The AD8132ARMZ offers externally adjustable gain and a wider supply range, while the AD8131ARM is a fixed-gain device with a narrower supply window. Designers should validate gain configuration, supply headroom, and bandwidth requirements before substituting one for the other.
Gain Configuration
Validation required
Supply Voltage Range
Validation required
Package Type
High match
Bandwidth
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 | AD8132ARMZ | AD8131ARM | Why it matters |
|---|---|---|---|
| Number of Drivers/Receivers | 1 Driver, 0 Receivers | 1 Driver, 0 Receivers | Both are single differential drivers, so channel count is functionally equivalent for substitution. |
| -3dB Bandwidth | 350 MHz | 400 MHz | Bandwidth determines the maximum signal frequency the driver can pass with acceptable attenuation; the AD8131 offers slightly higher bandwidth. |
| Slew Rate | 1200 V/µs | 2000 V/µs | Slew rate limits how fast the output can change; the AD8131 supports faster large-signal transitions. |
| Supply Voltage Range | 2.7 V to 11 V (±1.35 V to ±5.5 V) | 2.7 V to 11 V (±1.35 V to ±5.5 V) | Both support the same supply range, allowing operation from common single or dual supplies. |
| Supply Current (per amplifier) | 10.7 mA typ | 11.5 mA typ | Quiescent current affects power budget; the AD8132 draws slightly less current. |
| Input Offset Voltage | 1 mV typ (max 7 mV) | 1 mV typ (max 7 mV) | Offset voltage impacts DC accuracy; both parts have comparable offset specifications. |
| Output Voltage Swing | Rail-to-rail output | Rail-to-rail output | Rail-to-rail output maximizes dynamic range on low supply voltages for both devices. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Identical industrial temperature range ensures equivalent environmental compatibility. |
| Package / Mounting | 8-Lead MSOP (Surface Mount) | 8-Lead MSOP (Surface Mount) | Same package and footprint allow drop-in board replacement without layout changes. |
| Internal Gain Setting | External resistors (adjustable gain) | Fixed gain of 2 (internal resistors) | The AD8132 allows user-set gain via external resistors, while the AD8131 has a fixed gain of 2, which is a key functional difference affecting substitutability. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8132ARMZ | AD8131ARM |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | Differential | Differential |
| Number of Circuits | 1 | 1 |
| Output Type | Differential | Differential |
| Slew Rate | 1200V/µs | 2000V/µs |
| -3 dB Bandwidth | 360 MHz | 400 MHz |
| Current - Input Bias | 3 µA | 500 nA |
| Voltage - Input Offset | 1 mV | 1.5 mV |
| Supply Current | 12mA | 11.5mA |
| Current - Output / Channel | 70 mA | 60 mA |
| Voltage - Supply Span(Min) | 2.7 V | 2.8 V |
| Voltage - Supply Span(Max) | 11 V | 11 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |