DAC7744E vs AD9122BCPZ
| Part Number |
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| Category | Data Acquisition - Digital to Analog Converters (DAC) | Data Acquisition - Digital to Analog Converters (DAC) |
| Manufacturer | Burr Brown | Analog Devices Inc. |
| Description | DAC7744 16-BIT, QUAD VOLTAGE OUT | IC DAC 16BIT A-OUT 72LFCSP |
| Package | Bulk | Tape & Reel (TR) |
| Series | - | TxDAC+® |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 48-BSSOP (0.295\", 7.50mm Width) | 72-VFQFN Exposed Pad, CSP |
| Supplier Device Package | 48-SSOP | 72-LFCSP-VQ (10x10) |
| Output Type | Voltage - Buffered | Current - Unbuffered |
| Reference Type | External | External, Internal |
| Data Interface | Parallel | LVDS - Parallel |
| Number of Bits | 16 | 16 |
| Voltage - Supply, Analog | ±14.25V ~ 15.75V | 3.13V ~ 3.47V |
| Voltage - Supply, Digital | 5V | 1.71V ~ 1.89V |
| Architecture | R-2R | Current Source |
| Number of D/A Converters | 4 | 2 |
| Differential Output | No | Yes |
| INL/DNL (LSB) | ±4 (Max), ±3 (Max) | ±3.7, ±2.1 |
| Settling Time | 11µs | 20ns (Typ) |
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1. How to perform digital-to-analog conversion?
The digital-to-analog conversion process is to convert a digital signal into a continuously changing analog signal. This is usually achieved through a weighted resistor network or an R-2R ladder network, where each bit controls a switch that determines whether the corresponding voltage is added to the final output.
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2. Is a digital-to-analog converter worth it?
Whether it is worth it depends on the specific application requirements. If your project requires conversion from digital signals to analog signals, then using a DAC is necessary. It is an indispensable part in many electronic designs.
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3. Which ADC converter requires a DAC in its architecture?
The successive approximation register (SAR) type ADC includes a built-in relatively simple DAC. It is used to compare with the input analog signal to determine the corresponding digital code.
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4. What are ADC and DAC in Arduino?
On Arduino boards, ADC usually refers to the analog-to-digital converter integrated in the microcontroller, which is used to read the values of analog sensors. However, not all Arduino boards directly support DAC. For those Arduino boards that do not directly support DAC, an external DAC module may be required to achieve the digital-to-analog conversion function.
