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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- Product Details
- The AD7846 is a 16-bit DAC constructed with the Analog Devices, Inc., LC2MOS process. It has VREF+ and VREF− reference inputs and an on-chip output amplifier. These can be configured to give a unipolar output range (0 V to +5 V, 0 V to +10 V) or bipolar output ranges (±5 V, ±10 V).
- The DAC uses a segmented architecture. The four MSBs in the DAC latch select one of the segments in a 16-resistor string. Both taps of the segment are buffered by amplifiers and fed to a 12-bit DAC, which provides a further 12 bits of resolution. This architecture ensures 16-bit monotonicity. Excellent integral linearity results from tight matching between the input offset voltages of the two buffer amplifiers.
- In addition to the excellent accuracy specifications, the AD7846 also offers a comprehensive microprocessor interface. There are 16 data I/O pins, plus control lines (CS, R/W, LDAC and CLR). R/W and CS allow writing to and reading from the I/O latch.
- This is the readback function, which is useful in ATE applications. LDAC allows simultaneous updating of DACs in a multi-DAC system and the CLR line will reset the contents of the DAC latch to 00…000 or 10…000 depending on the state of R/W.
- This means that the DAC output can be reset to 0 V in both the unipolar and bipolar configurations.
- The AD7846 is available in 28-lead plastic, ceramic, and PLCC packages.
- **Product Highlights**
- 1. 16-Bit Monotonicity
- The guaranteed 16-bit monotonicity over temperature makes the AD7846 ideal for closed-loop applications.
- 2. Readback
- The ability to read back the DAC register contents minimizes software routines when the AD7846 is used in ATE systems.
- 3. Power Dissipation
- Power dissipation of 100 mW makes the AD7846 the lowest power, high accuracy DAC on the market.
- ### Features and Benefits
- 16-bit monotonicity over temperature
- ±2 LSBs integral linearity error
- Microprocessor compatible with readback capability
- Unipolar or bipolar output
- Multiplying capability
- Low power (100 mW typical)
AD7846 Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Show | |
| Product Lifecycle Status | Unknown |
| RoHS | RoHS Compliant |
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- Delivery date: usually 2 to 7 working days.
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- - 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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