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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- Product Details
- The AD7874 is a four-channel simultaneous sampling, 12-bit data acquisition system. The part contains a high speed 12-bit ADC, on chip reference, on-chip clock and four track/hold amplifiers. This latter feature allows the four input channels to be sampled simultaneously, thus preserving the relative phase information of the four input channels, which is not possible if all four channels share a single track/hold amplifier. This makes the AD7874 ideal for applications such as phased-array sonar and ac motor controllers where the relative phase information is important.
- The aperture delay of the four track/hold amplifiers is small and specified with minimum and maximum limits. This allows several AD7874s to sample multiple input channels simultaneously without incurring phase errors between signals connected to several devices. A reference output/reference input facility also allows several AD7874s to be driven from the same reference source.
- In addition to the traditional dc accuracy specifications such as linearity, full-scale and offset errors, the AD7874 is also fully specified for dynamic performance parameters including distortion and signal-to-noise ratio.
- The AD7874 is fabricated in Analog Devices" Linear Compatible CMOWS (LC2MOS) process, a mixed technology process that combines precision bipolar circuits with low-power CMOS logic. The part is available in a 28-pin, 0.6" wide, plastic or hermetic dual-in-line package (DIP), in a 28-terminal leadless ceramic chip carrier (LCCC) and in a 28-pin SOIC.
- ### Features and Benefits
- Four On-Chip Track/Hold Amplifiers
- Simultaneous Sampling of 4 Channels
- Fast 12-Bit ADC with 8 µs Conversion Time/Channel
- 29 kHz Sample Rate for All Four Channels
- On-Chip Reference
- ±10 V Input Range
- ±5 V Supplies
AD7874AN Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Through Hole |
| Number of Pins | 28 Pin |
| Case/Package | PDIP-28 |
| Digital Logic Level | SAR |
| Number of Channels | 4 Channel |
| Number of Bits | 12 Bit |
| Power Dissipation | 150 W |
| Sample Rate | 116 ksps |
| Power Consumption | 100 mW |
| Resolution (Bits) | 12.0 Bit |
| Input Impedance | 9.00 GΩ |
| Number of ADCs | 1 ADC |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Power Dissipation (Max) | 150 mW |
| Number of Input Channels | 4 Channel |
| Show | |
| Size-Length | 39.75 mm |
| Size-Width | 14.73 mm |
| Size-Height | 4.95 mm |
| Operating Temperature | -40℃ ~ 85℃ |
| Product Lifecycle Status | Active |
| Packaging | Tube |
| RoHS | Non-Compliant |
| Lead-Free Status | Contains Lead |
| Mil-Spec | Yes |
Order guide
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- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
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