AS1528 Datasheet | austriamicrosystems AG

Description The AS1528/AS1529 are low-power, 10-bit analog-todigital converters (ADCs) designed to operate with a single +2.7V to +5.25V supply. Excellent dynamic performance, low power consumption, and simplicity make these devices perfect for portable battery-powered dataacquisition applications. The devices are available as the standard products listed in Table 1. Table 1. Standard Products Model AS1528 AS1529 Input Type 1-Channel, Pseudo / True-Differential 2-Channel, Single Ended Input Voltage 0 to VREF / -VREF/2 to VREF/2 0 to VREF 2 Key Features ! ! ! Single-Supply Operation: +2.7V to +5.25V Automatic Shutdown Between Conversions Low Power Consumption - 350µA @ 150ksps - 245µA @ 100ksps - 24µA @ 10ksps - 2.5µA @ 1ksps - 200n A in Automatic Shutdown Mode ! True-Differential Track/Hold, 150k Hz Sampling Rate Software-Configurable Unipolar/Bipolar Conversion (AS1528) Input mon Mode Range from GND to VDD 3-Wire SPI-/QSPI-/MICROWIRE-patible Serial Interface Internal Conversion Clock 8-pin TDFN (3x3mm) Package The devices feature a successive-approximation register (SAR), automatic shutdown, fast wakeup (1.4µs), and low-power consumption at the maximum sampling rate of 150ksps. Automatic shutdown (0.2µA) between conversions results in reduced power consumption (at slower throughput rates). Data access are made via an external clock through the SPI-/QSPI-/MICROWIRE-patible 3-wire high-speed serial interface. The AS1529/AS1528 are available in a 8-pin TDFN (3x3mm) package. ! ! ! ! 3 Applications The devices are ideal for remote sensors, data-acquisition, data logging devices, lab instruments, or for any other space-limited A/D devices with low power consumption and single-supply requirements. Figure 1. AS1528/AS1529 - Block Diagram 1 VDD 7 CNVST 8 SCLK Control Logic 2 AIN1/AIN+ 2 AIN2/AIN4 REF 5 GND Track/ Hold 10-Bit SAR 6 DOUT Input Shift Register AS1528/AS1529 Osc .austriamicrosystems. Revision 1.02 - 21 AS1528/AS1529 .. Contents 1...