Part A
AD7894ARZ-3
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 3263 個数
- Package
- SOIC-8
- Series
- データ取得 - アナログ/デジタルコンバータ (ADC)
Replacement verdict
Not a drop-in replacement
The AD7894ARZ-3 and AD7893AR-2 are both 12-bit successive-approximation ADCs from Analog Devices, but they differ in resolution architecture, input configuration, and package footprint, so the AD7893AR-2 cannot serve as a direct drop-in substitute for the AD7894ARZ-3 without circuit and layout redesign.
Different input configuration
Different package footprint
Different conversion architecture
Different interface timing
Parts at a glance
Part B
AD7893AR-2
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 4273 個数
- Package
- SOIC-8
- Series
- データ取得 - アナログ/デジタルコンバータ (ADC)
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD7894ARZ-3 | AD7893AR-2 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 14 | 12 |
| Sampling Rate(Per Second) | 200k | 117k |
| Number of Inputs | 1 | 1 |
| Input Type | Single Ended | Single Ended |
| Data Interface | SPI | SPI |
| Configuration | S/H-ADC | S/H-ADC |
| Ratio - S / H: ADC | 1:1 | 1:1 |
| Number of A/D Converters | 1 | 1 |
| Architecture | SAR | SAR |
| Reference Type | External | External |
| Voltage - Supply, Analog | 5V | 5V |
| Voltage - Supply, Digital | 5V | 5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |