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Data Converters 
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Digital-to-Analog Converters
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MAX533
2.7V, Low-Power, 8-Bit Quad DAC with Rail-to-Rail Output Buffers
Smallest Quad 8-Bit DAC
MyMaxim SubscriptionsProduct Details
Key Features
Applications/Uses
Parametric specs for Precision DACs (< 1MHz)
| Resolution (bits) | 8 |
| # Channels | 4 |
| Interface | Serial - SPI |
| Output Type | Voltage- Buffered |
| Reference | Ext. |
| INL (±LSB) (max) | 1 2 |
| Supply Range (V) (min) | 2.7 |
| Supply Range (V) (max) | 3.6 |
| ICC (mA) (max) | 1.5 |
| Settling Time (µs) (typ) | 6 |
| Package/Pins | QSOP/16 |
| Oper. Temp. (°C) | -55 to +125 -40 to +85 0 to +70 |
| Budgetary Price (See Notes) | 3.28 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | 2.7V, Low-Power, 8-Bit Quad DAC with Rail-to-Rail Output Buffers | Jun 01, 1996 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Parametric specs for Precision DACs (< 1MHz)
| Resolution (bits) | 8 |
| # Channels | 4 |
| Interface | Serial - SPI |
| Output Type | Voltage- Buffered |
| Reference | Ext. |
| INL (±LSB) (max) | 1 2 |
| Supply Range (V) (min) | 2.7 |
| Supply Range (V) (max) | 3.6 |
| ICC (mA) (max) | 1.5 |
| Settling Time (µs) (typ) | 6 |
| Package/Pins | QSOP/16 |
| Oper. Temp. (°C) | -55 to +125 -40 to +85 0 to +70 |
| Budgetary Price (See Notes) | 3.28 |
Key Features
- +2.7V to +3.6V Single-Supply Operation
- Ultra-Low Supply Current:
- 0.7mA while Operating
- 1µA in Shutdown Mode
- Ultra-Small 16-Pin QSOP Package
- Ground to VDD Reference Input Range
- Output Buffer Amplifiers Swing Rail to Rail
- 10MHz Serial Interface, Compatible with SPI, QSPI
- (CPOL = CPHA = 0 or CPOL = CPHA = 1), and Microwire
- Double-Buffered Registers for Synchronous Updating
- Serial Data Output for Daisy Chaining
- Power-On Reset Clears Serial Interface and Sets All Registers to Zero
- Software Shutdown
- Software-Programmable Logic Output
- Asynchronous Hardware Clear Resets All Internal Registers to Zero
Applications/Uses
- Digital Gain and Offset Control
- Portable Instrumentation
- Programmable Attenuators
- Programmable Current Sources
Description
The MAX533 serial-input, voltage-output, 8-bit quad digital-to-analog converter (DAC) operates from a sin-gle +2.7V to +3.6V supply. Internal precision buffers swing rail to rail, and the reference input range includes both ground and the positive rail. The MAX533 features a 1µA shutdown mode.
The serial interface is double buffered: a 12-bit input shift register is followed by four 8-bit buffer registers and four 8-bit DAC registers. The 12-bit serial word consists of eight data bits and four control bits (for DAC selection and special programming commands). Both the input and DAC registers can be updated indepen-dently or simultaneously with a single software com-mand. Two additional asynchronous control pins, active-low LDAC and active-low CLR, provide simultaneous updating or clearing of the input and DAC registers.
The interface is compatible with SPI, QSPI (CPOL = CPHA = 0 or CPOL = CPHA = 1), and Microwire. A buffered data output allows daisy chaining of serial devices.
In addition to 16-pin DIP and CERDIP packages, the MAX533 is available in a 16-pin QSOP that occupies the same area as an 8-pin SO.
The serial interface is double buffered: a 12-bit input shift register is followed by four 8-bit buffer registers and four 8-bit DAC registers. The 12-bit serial word consists of eight data bits and four control bits (for DAC selection and special programming commands). Both the input and DAC registers can be updated indepen-dently or simultaneously with a single software com-mand. Two additional asynchronous control pins, active-low LDAC and active-low CLR, provide simultaneous updating or clearing of the input and DAC registers.
The interface is compatible with SPI, QSPI (CPOL = CPHA = 0 or CPOL = CPHA = 1), and Microwire. A buffered data output allows daisy chaining of serial devices.
In addition to 16-pin DIP and CERDIP packages, the MAX533 is available in a 16-pin QSOP that occupies the same area as an 8-pin SO.
Technical Docs
| Data Sheet | 2.7V, Low-Power, 8-Bit Quad DAC with Rail-to-Rail Output Buffers | Jun 01, 1996 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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