Overview
The DAC088S085CISQX/NOPB from Texas Instruments is a full-featured, general-purpose, OCTAL, 8-bit, voltage-output digital-to-analog converter (DAC). This device operates from a single supply voltage ranging from 2.7 V to 5.5 V and is known for its low power consumption, with typical values of 1.95 mW at 3 V and 4.85 mW at 5 V. It is packaged in both 16-pin WQFN and 16-pin TSSOP packages, with the WQFN package being the smallest in its class. The DAC features on-chip output amplifiers that allow rail-to-rail output swing and a three-wire serial interface compatible with standard SPI, QSPI, MICROWIRE, and DSP interfaces, operating at clock rates up to 40 MHz across the entire supply voltage range.
Key Specifications
| Attribute | Value |
|---|---|
| Number of Bits | 8 |
| Number of Channels | 8 |
| Supply Voltage | 2.7 V to 5.5 V |
| Power Consumption | 1.95 mW (3 V), 4.85 mW (5 V) |
| Settling Time | 4.5 μs |
| Integral Nonlinearity (INL) | ±0.5 LSB |
| Differential Nonlinearity (DNL) | 0.15 / -0.1 LSB |
| Operating Temperature | -40°C to 125°C |
| Package Type | 16-pin WQFN, 16-pin TSSOP |
| Data Interface | SPI, QSPI, MICROWIRE, DSP |
| Output Type | Voltage - Buffered |
Key Features
- Low Power Operation: Consumes 1.95 mW at 3 V and 4.85 mW at 5 V.
- Rail-to-Rail Voltage Output: On-chip output amplifiers allow full rail-to-rail output swing.
- High-Speed Serial Interface: Compatible with SPI, QSPI, MICROWIRE, and DSP interfaces, operating at clock rates up to 40 MHz.
- Daisy Chain Capability: Allows simultaneous updating of an unlimited number of devices using a single serial interface.
- Individual Channel Power Down: Each DAC can be independently powered down, reducing power consumption to less than 0.3 μW at 3 V and less than 1 μW at 5 V.
- Power-On Reset: Ensures DAC outputs power up to 0 V and remain there until a valid write is performed.
- Dual Reference Voltages: Each reference can be set independently between 0.5 V and VA, providing a wide output dynamic range.
- Smallest Package in Class: 16-pin WQFN package.
Applications
The DAC088S085CISQX/NOPB is suitable for a variety of applications due to its low power consumption, high-speed interface, and compact packaging. It is particularly useful in:
- Battery-operated equipment where low power consumption is critical.
- Industrial control systems that require multiple DAC channels and high-speed data transfer.
- Aerospace and automotive systems that need components with an extended operating temperature range (-40°C to 125°C)).
- Medical devices and portable electronics where space and power efficiency are essential).
Q & A
- What is the resolution of the DAC088S085CISQX/NOPB?
The resolution of the DAC088S085CISQX/NOPB is 8 bits.
- What is the supply voltage range for the DAC088S085CISQX/NOPB?
The supply voltage range is from 2.7 V to 5.5 V.
- What types of packages are available for the DAC088S085CISQX/NOPB?
The device is available in 16-pin WQFN and 16-pin TSSOP packages.
- What is the maximum clock rate of the serial interface?
The serial interface operates at clock rates up to 40 MHz across the entire supply voltage range.
- Does the DAC088S085CISQX/NOPB support daisy chain operation?
Yes, it supports daisy chain operation, allowing simultaneous updating of an unlimited number of devices using a single serial interface.
- What is the power consumption when the DAC is powered down?
When powered down, the power consumption is less than 0.3 μW at 3 V and less than 1 μW at 5 V.
- What is the operating temperature range of the DAC088S085CISQX/NOPB?
The operating temperature range is from -40°C to 125°C.
- Is the DAC088S085CISQX/NOPB RoHS compliant?
Yes, the DAC088S085CISQX/NOPB is RoHS compliant.
- What is the settling time of the DAC088S085CISQX/NOPB?
The settling time is 4.5 μs.
- Does the DAC088S085CISQX/NOPB have individual channel power-down capability?
Yes, each DAC channel can be independently powered down.
