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AS1526 Arkusz danych(PDF) 1 Page - ams AG |
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AS1526 Arkusz danych(HTML) 1 Page - ams AG |
1 / 2 page AS1526, AS1527 10-Bit, Single Supply, Low-Power, 73ksps A/D Converters austriamicrosystems Produ ct Brief www.austriamicrosystems.com Revision 1.02 1 - 2 1 General Description The AS1526/AS1527 are low-power, 10-bit, 73ksps ana- log-to-digital (A/D) converters specifically designed for single-supply A/D applications. Superior AC characteris- tics, very low power consumption, and robust packaging make these ultra-small devices perfect for battery-pow- ered analog-data collection devices. The integrated successive-approximation register (SAR) and a fast (1.5µs) sampling track/hold time provide an economic and highly-reliable A/D conversion solution. The AS1526/AS1527 operate from a single 2.7 to 3.6V supply. The AS1527 requires an external reference, using less power than the AS1526, however, the AS1526 features an internal 2.5V reference. As with the AS1527, the AS1526 can also be used with an external reference, which uses the input range 0V to VREF, including the positive supply range. The AS1527 consumes only 3mW (VDD = 3V) at the 73ksps maximum sampling speed. Both devices feature a low-current (0.3µA) shutdown mode, which reduces power consumption at slower throughput rates. Data accesses are made via the standard, high-speed 3-wire serial interface, which is SPI-, QSPI-, and Microwire-compatible. Both devices contain an internal clock, however, both devices also support an external clock for increased flexibility. The AS1526/AS1527 are available in an 8-pin SOIC-150 package. Figure 1. Block Diagram and Pin Assignments 2 Key Features ! 10-Bit Resolution with 7.5µs Conversion Time ! Sampling Rate: 73ksps ! Straight Binary (Unipolar) Data Format ! Single-Supply Operation:+2.7 to +3.6V ! Internal 2.5V Reference (AS1526) ! Low Power-Consumption: - 4mW (73ksps, AS1526) - 3mW (73ksps, AS1527) - 66µW (1ksps, AS1527) - 1µW (Shutdown Mode) ! Integrated Track/Hold Amplifier ! Internal Clock ! SPI/QSPI/Microwire 3-Wire Serial Interface ! Operating Temperature Range: -40 to +85ºC ! 8-pin SOIC-150 Package 3 Applications The devices are ideal for remote sensors, data-acquisi- tion, data logging devices, lab instruments, or for any other space-limited A/D devices with low power con- sumption and single-supply requirements. AS1526/AS1527 Control Logic Output Shift Register Internal Clock 10-Bit SAR Track/ Hold 2.5V Ref AS1526/ AS1527 4 REF AS1526 only 10-Bit SAR 6 DOUT 5 GND 1 VDD 7 CSN 8 SCLK 3 SHDNN 2 AIN 4 REF 3 SHDNN 2 AIN 1 VDD 5GND 6DOUT 7CSN 8SCLK |
Podobny numer części - AS1526 |
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Podobny opis - AS1526 |
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