Datasheet AD5592R (Analog Devices)

8-Channel, 12-Bit, Configurable ADC/DAC with On-Chip Reference, SPI Interface Data Sheet AD5592R FEATURES
When an I/Ox pin is configured as an analog input, it is connected to a 12-bit ADC via an analog multiplexer. The input
8-channel, configurable ADC/DAC/GPIO Configurable as any combination of
range of the ADC is 0 V to VREF or 0 V to 2 × VREF. The ADC
8 × 12-bit DAC channels
has a total throughput rate of 400 kSPS. The I/Ox pins can also
8 × 12-bit ADC channels
be configured as digital, general-purpose input or output
8 × general-purpose digital input/output pins
(GPIO) pins. The state of the GPIO pins can be set or read back
Integrated temperature sensor
by accessing the GPIO write data register or the GPIO read
SPI interface
configuration register, respectively, via a serial peripheral
Available in
interface (SPI) write or read operation.
16-ball, 2 mm × 2 mm WLCSP
The AD5592R/AD5592R-1 have an integrated 2.5 V, 25 ppm/°C
16-lead, 3 mm × 3 mm LFCSP
reference, which is turned off by default, and an integrated
16-lead TSSOP
temperature indicator, which gives an indication of the die
APPLICATIONS
temperature. The temperature value is read back as part of an ADC read sequence.
Control and monitoring
The AD5592R/AD5592R-1 are available in 16-ball, 2 mm ×
General-purpose analog and digital inputs/outputs
2 mm WLCSP, 16-lead, 3 mm × 3 mm LFCSP, and 16-lead
GENERAL DESCRIPTION
TSSOP. The AD5592R/AD5592R-1 operate over a temperature The AD5592R/AD5592R-1 have eight I/Ox pins (I/O0 to I/O7) range of −40°C to +105°C. that can be independently configured as digital-to-analog
Table 1. Related Products
converter (DAC) outputs, analog-to-digital converter (ADC)
Part No. Description
inputs, digital outputs, or digital inputs. When an I/Ox pin is configured as an analog output, it is driven by a 12-bit DAC. AD5593R AD5592R equivalent with VLOGIC and RESET pins and an I2C interface The output range of the DAC is 0 V to VREF or 0 V to 2 × VREF.
FUNCTIONAL BLOCK DIAGRAM V V DD REF AD5592R POWER-ON 2.5V RESET REFERENCE GPIO0 INPUT DAC SYNC DAC 0 I/O0 REGISTER REGISTER SCLK SDI GPIO7 SDO SPI INPUT DAC DAC 7 I/O7 INTERFACE REGISTER REGISTER LOGIC RESET MUX SEQUENCER 12-BIT SUCCESSIVE T/H APPROXIMATION ADC TEMPERATURE INDICATOR
001
GND
506- 12 Figure 1. AD5592R Functional Block Diagram
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Document Outline Features Applications General Description Functional Block Diagram Revision History Functional Block Diagram (AD5592R-1) Specifications Timing Characteristics Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Terminology ADC Terminology DAC Terminology Theory of Operation DAC Section Resistor String Output Buffer ADC Section Calculating ADC Input Current GPIO Section Internal Reference RESETB Function Temperature Indicator Serial Interface Power-Up Time Write Mode Read Mode Configuring the AD5592R/AD5592R-1 General-Purpose Control Register DAC Write Operation LDAC Mode Operation DAC Readback ADC Operation Changing an ADC Sequence GPIO Operation Setting Pins as Outputs Setting Pins as Inputs Three-State Pins 85 kΩ Pull-Down Resistor Pins Power-Down Mode Reset Function Readback and LDAC Mode Register Applications Information Microprocessor Interfacing AD5592R/AD5592R-1 to SPI Interface AD5592R/AD5592R-1 to SPORT Interface Layout Guidelines Outline Dimensions Ordering Guide