Product Details

describe:

The ADS7067 is a small, 16-bit, 8-channel, high precision successive approximation register (SAR) analog-to-digital converter (ADC). The ADS7067 features an integrated capacitorless reference and reference buffer, which helps reduce overall solution size by requiring fewer external components. Wafer-level chip-scale packaging and fewer external components make the device suitable for space-constrained applications. The device family includes the ADS7067 (800 kSPS) and ADS7066 (250 kSPS) speed variants.

The ADS7067 has built-in offset calibration to improve accuracy over a wide range of system operating conditions. The AOT460 programmable averaging filter enables higher resolution measurements. The eight channels of the ADS7067 can be individually configured as analog inputs, digital inputs, or digital outputs, enabling smaller system size and simplifying circuit design for mixed-signal feedback and digital control.

Enhanced SPI enables the ADS7067 to achieve high throughput at lower clock speeds, simplifying board layout and reducing system cost. The ADS7067 has a Cyclic Redundancy Check (CRC) for data read and write operations and power-up configuration.

characteristic:

●Small solution size:

○ 1.62 mm × 1.62 mm WCSP

○Space-saving capacitorless 2.5V internal reference

●8 channels can be configured in any combination of the following:

○Up to 8 analog inputs, digital inputs or digital outputs

●Programmable averaging filter:

○ Programmable sample size for averaging

○Average using internal transformation

○ 20-bit resolution for average output

● Low leakage multiplexer with channel sequencer:

○Manual mode

○Airplane mode

○ Auto sort mode

●Excellent AC and DC performance:

○ Signal-to-Noise Ratio: 90dB, Total Harmonic Distortion: –100dB

○ Improve SNR with programmable averaging filter

○INL: ±1 LSB, 16 bits without missing codes

○ Internal calibration to improve offset and drift

○ High sampling rate with no delay output: 800 kSPS

●Wide range of operation:

○ ADC input range: 0 V to V REF and 2 × V REF

○ Analog Power: 3 V to 5.5 V

○ Digital Power: 1.65 V to 5.5 V

○Temperature range: –40°C to +125°C

●Enhanced SPI digital interface:

○High-speed 60MHz SPI interface

parameter:

Resolution (bits): 16

Number of input channels: 8

Sampling Rate (Max) (kSPS): 800

Interface type: SPI

Architecture: DC

Input type: single-ended

Multi-Channel Configuration: Multiplexing

Reference Mode: External, Internal

Input Range (Max) (V): 5.5

Input range (Min) (V): 0

Features: Daisy chain, GPIO, small size

Operating temperature range (°C): -40 to 125

Power consumption (typ.) (mW): 5

Analog Voltage AVDD (Min) (V): 3

Signal-to-noise ratio (dB): 85.3

Analog voltage AVDD (Max) (V): 5.5

INL (max) (+/-LSB): 4

Digital Power (Min) (V): 1.65

Digital Power (Max) (V): 5.5