●The ADS1259 is a high-linearity, low-drift, 24-bit, analog-to-digital converter (ADC) designed for the needs of industrial process control, precision instrumentation, and other exacting applications. Combined with a signal amplifier (such as the PGA280), a high-resolution, high-accuracy measurement system is formed that is capable of digitizing a wide range of signals.
●The converter uses a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator that provides outstanding noise and linearity performance. The data rates are programmable up to 14kSPS including 10SPS, 50SPS, and 60SPS that provide excellent normal mode line-cycle rejection. The digital filter can be programmed for a fast settling mode where the conversions settle in a single cycle, or programmed for a high line-cycle rejection mode. A fast responding input over-range detector flags the conversion data if an input over-range should occur.
●The ADS1259 also provides an integrated low-noise, very low drift 2.5V reference. The on-chip oscillator, an external crystal, or an external clock can by used as the ADC clock source.
●Data and control communication are handled over a 4MHz, SPI-compatible interface capable of operating with a minimum of three wires. Data integrity is augmented by data bytes checksum and redundant data read capability. Conversions are synchronized either by command or by pin.
●Dissipating only 13mW in operation, the ADS1259 can be powered down, dissipating less than 25µW. The ADS1259 is offered in a TSSOP-20 package and is fully specified from –40°C to +105°C.
● 24 Bits, No Missing Codes
● Output Data Rates From 10 To 14kSPS
● High Performance:
● INL: 0.4ppm
● Reference Drift: 2ppm/°C
● Gain Drift: 0.5ppm/°C
● Offset Drift: 0.05µV/°C
● Noise: 0.7µVRMS at 60SPS
● Simultaneous 50/60Hz Rejection at 10SPS
● Single-Cycle Settling
● Internal Oscillator
● Out-of-Range Detection
● Readback Data Integrity by Checksum and Redundant Data Read Capability
● SPI-Compatible Interface
● Analog Supply: +5V or ±2.5V
● Digital Supply: +2.7V to +5V
● Low Power: 13mW
● APPLICATIONS
● Industrial Process Control
● Scientific Instrumentation
● Test and Measurement
●All other trademarks are the property of their respective owners
Part 3D Model
