AS1529 A/D Converter IC
Micro-Power, 10-Bit ADC, 150ksps, 2-Channel Single-Ended, TDFN (3x3mm) 8-pin
Description
The AS1528/AS1529 are low-power, 10-bit analog-to-digital converters (ADCs) designed to operate with a sin­gle +2.7 to +5.25V supply. Excellent dynamic perfor­mance, low power consumption, and simplicity make these devices perfect for portable battery-powered data-acquisition applications.
The devices are available as the following standard products:
| Model |
Input Type |
Input Voltage |
| AS1528 |
1-Channel, Pseudo / True-Differential |
0 to VREF/ -VREF/2 to VREF/2 |
| AS1529 |
2-Channel, Single-Ended |
0 to VREF |
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 is accessed via an external clock through the SPI-/QSPI-/MICROWIRE-compatible 3-wire high-speed serial interface.
The AS1528/AS1529 are available in a 8-pin TDFN (3x3mm) package.
Key Features
- Single-Supply Operation: +2.7 to +5.25V
- Automatic Shutdown Between Conversions
- Low Power Consumption
- 350µA @ 150ksps
- 245µA @ 100ksps
- 24µA @ 10ksps
- 2.5µA @ 1ksps
- 200nA in Automatic Shutdown Mode
- True-Differential Track/Hold, 150kHz Sampling Rate Software-Configurable Unipolar/Bipolar Conversion (AS1528)
- Input Common Mode Range from GND to VDD
- 3-Wire SPI-/QSPI-/MICROWIRE-Compatible Serial Interface
- Internal Conversion Clock
- 8-pin TDFN (3x3mm) Package
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.
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