規格
| 屬性 | 價值 |
| Supplier | Analog Devices Inc./Maxim Integrated |
| Package / Case | Tape & Reel (TR) |
| Part Status | Active |
| Number of Bits | 8 |
| Number of D/A Converters | 2 |
| Settling Time | 4µs (Typ) |
| Output Type | Voltage - Unbuffered |
| Differential Output | No |
| Data Interface | SPI |
| Reference Type | External |
| Voltage - Supply, Analog | 2.5V ~ 5.5V |
| Voltage - Supply, Digital | 2.5V ~ 5.5V |
| INL / DNL(LSB) | -, ±0.9 (Max) |
| Architecture | R-2R |
| Operating Temperature | 0°C ~ 70°C |
| Supplier Device Package | 8-uMAX/uSOP |
概述
Description
MAX549ACUA+T is a Maxim Integrated digital-to-analog converter (DAC) in the MAX549 family. It’s a multi-channel, voltage-output DAC with a serial control interface (SPI-like), used to convert digital codes into precise analog voltages for instrumentation, calibration, and control systems. The “+T” indicates RoHS-compliant, lead-free packaging and tape-and-reel handling; “CUA” denotes the package and temperature grade associated with this variant.
Key points:
- Serial interface: SPI-like (SI/SCK/CS) for microcontroller compatibility
- Output: one or more voltage-output channels (exact number/resolution varies by variant)
- Supply: typically 2.7 V to about 5.5 V
- Characteristics: monotonic operation, good linearity, fast update performance
- Package: small lead-frame/flat-pack (RoHS)
For exact specs (resolution, channel count, timing), refer to the specific MAX549ACUA+T datasheet.
Key points:
- Serial interface: SPI-like (SI/SCK/CS) for microcontroller compatibility
- Output: one or more voltage-output channels (exact number/resolution varies by variant)
- Supply: typically 2.7 V to about 5.5 V
- Characteristics: monotonic operation, good linearity, fast update performance
- Package: small lead-frame/flat-pack (RoHS)
For exact specs (resolution, channel count, timing), refer to the specific MAX549ACUA+T datasheet.
Pinout
- Pin count: 16 pins (16-pin package, e.g., SOIC/TSSOP).
- Function: 12-bit multiplying digital-to-analog converter (DAC) with a serial SPI-like interface (digital input to an analog output).
- Function: 12-bit multiplying digital-to-analog converter (DAC) with a serial SPI-like interface (digital input to an analog output).
Manufacturer
Manufacturer: Maxim Integrated (now a wholly owned subsidiary of Analog Devices, Inc.).
What kind of company: A global semiconductor company that designs and markets analog, mixed-signal, and power-management integrated circuits.
What kind of company: A global semiconductor company that designs and markets analog, mixed-signal, and power-management integrated circuits.
Application
MAX549ACUA+T is a digitally controlled potentiometer. Common applications:
- Programmable gain/attenuation in op-amp feedback and instrumentation amps
- DAC/ADC references, offset and gain trimming
- Sensor signal conditioning and calibration (bridge sensors, thermistors)
- Audio volume control and tone shaping
- Programmable attenuators in RF/microwave front-ends
- Calibration/auto-calibration loops in test and instrumentation equipment
- Adjustable bias/voltage divider networks in power management and control circuits
These use cases leverage its digital wiper to set precise resistance values without mechanical pots.
- Programmable gain/attenuation in op-amp feedback and instrumentation amps
- DAC/ADC references, offset and gain trimming
- Sensor signal conditioning and calibration (bridge sensors, thermistors)
- Audio volume control and tone shaping
- Programmable attenuators in RF/microwave front-ends
- Calibration/auto-calibration loops in test and instrumentation equipment
- Adjustable bias/voltage divider networks in power management and control circuits
These use cases leverage its digital wiper to set precise resistance values without mechanical pots.
Package
8-pin SOIC (Small-Outline Integrated Circuit) package, Tape-and-Reel variant.
