核芯模數轉換器芯片發布，單通道低功耗16bit 1M 模數轉換器CL1680，P2P替代AD7980。
The AD7980
is a 16-bit, successive approximation, analog-todigital converter (ADC) that operates from a single power supply,
VDD. It contains a low power, high speed, 16-bit sampling ADC
and a versatile serial interface port. On the CNV rising edge, it
samples an analog input, IN+, between 0 V to REF with respect
to a ground sense, IN?. The reference voltage, REF, is applied
externally and can be set independent of the supply voltage,
VDD. Its power scales linearly with throughput.
The SPI-compatible serial interface also features the ability,
using the SDI input, to daisy-chain several ADCs on a single,
3-wire bus and provides an optional busy indicator. It is compatible
with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate supply VIO.
The AD7980 is housed in a 10-lead MSOP or a 10-lead LFCSP
with operation specified from ?40°C to +125°C.
FEATURES
16-bit resolution with no missing codes
Throughput: 1 MSPS
Low power dissipation
4 mW at 1 MSPS (VDD only)
7 mW at 1 MSPS (total)
70 μW at 10 kSPS
INL: ±0.6 LSB typical, ±1.25 LSB maximum
SINAD: 91.25 dB at 10 kHz
THD: ?110 dB at 10 kHz
Pseudo differential analog input range
0 V to VREF with VREF between 2.5 V to 5 V
No pipeline delay
Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V
logic interface
Proprietary serial interface
SPI/QSPI/MICROWIRE?/DSP compatible
Daisy-chain multiple ADCs and busy indicator
10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP,
same space as SOT-23
Wide operating temperature range: ?40°C to +125°C
APPLICATIONS
Battery-powered equipment
Communications
Automatic test equipment (ATE)
Data acquisitions
Medical instruments

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