模数转换器 - ADC 16-Bit, 1 MSPS, Diff, PulSAR ADC
Product Details
The AD4005 is a low noise, low power, high speed, 16-bit, precision successive approximation register SAR analog-to-digital converter ADC. The AD4005 offers a 1 MSPS throughput. It incorporates ease of use features that reduce signal chain power consumption, reduce signal chain complexity, and enable higher channel density. The high-Z mode, coupled with a long acquisition phase, eliminates the need for a dedicated high power, high speed ADC driver, thus broadening the range of low power precision amplifiers that can drive these ADCs directly, while still achieving optimum performance. The input span compression feature enables the ADC driver amplifier and the ADC to operate off common supply rails without the need for a negative supply while preserving the full ADC code range. The low serial peripheral interface SPI clock rate requirement reduces the digital input/output power consumption, broadens processor options, and simplifies the task of sending data across digital isolation.
Operating from a 1.8 V supply, the AD4005 has a ±VREF fully differential input range with VREF ranging from 2.4 V to 5.1 V. The AD4005 consumes only 8 mW at 1 MSPS. The AD4005 achieves ±0.4 LSB integral nonlinearity error INL maximum, guaranteed no missing codes at 16 bits with 96.2 dB typical signal-to-noise ratio SNR for 1 kHz inputs. The reference voltage is applied externally and can be set independently of the supply voltage.
The SPI-compatible, versatile serial interface features seven different modes including the ability, using the SDI input, to daisy-chain several ADCs on a single 3-wire bus, and provides an optional busy indicator. The AD4005 iscompatible with 1.8 V, 2.5 V, 3 V, and 5 V logic, using the separate VIO supply.
The AD4005 is available in a 10-lead MSOP or LFCSP with operation specified from −40°C to +125°C. The device is pin compatible with the 18-bit, 2 MSPS AD4003.
Applicatons
### Features and Benefits