14-Bit, 85ksps ADC with 10µA Shutdown
DescriptionThe MAX194 is a 14-bit successive-approximation analog-to-digital converter (ADC) that combines high speed, high accuracy, low power consumption, and a 10µA shutdown mode. Internal calibration circuitry corrects linearity and offset errors to maintain the full rated performance over the operating temperature range without external adjustments. The capacitive-DAC architecture provides an inherent 85ksps track/hold function.
The MAX194, with an external reference (up to +5V), offers a unipolar (0V to VREF) or bipolar (-VREF to VREF) pin-selectable input range. Separate analog and digital supplies minimize digital-noise coupling.
The chip select (active-low CS) input controls the three-state serial-data output. The output can be read either during conversion as the bits are determined, or following conversion at up to 5Mbps using the serial clock (SCLK). The end-of-conversion (active-low EOC) output can be used to interrupt a processor, or can be connected directly to the convert input (active-low CONV) for continuous, full-speed conversions.
The MAX194 is available in 16-pin DIP, wide SO, and ceramic sidebraze packages. The output data format provides pin-for-pin and functional compatibility with the 16-bit MAX195 ADC.
- True 14-Bit Accuracy:
- 1/2LSB INL
- 82dB SINAD
- 9.4µs Conversion Time
- 10µA Shutdown Mode
- Built-In Track/Hold
- AC and DC Specified
- Unipolar (0V to VREF) and Bipolar (-VREF to VREF) Input Range
- Three-State Serial-Data Output
- Small 16-Pin DIP, SO, and Ceramic SB Packages
- Pin-Compatible 16-Bit Upgrade (MAX195)
- Digital Signal Processing (DSP)
- Industrial Controls
- Medical Signal Acquisition
- Multiple Transducer Measurements
- Portable Instrumentation
- Vibration Analysis
|# Input Channels||Conv. Rate|
|ADC Architecture||Data Bus||Diff/S.E. Input||External VREF|
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C||Material Composition|
|Evaluation Board||1039||MAX194EVKIT Evaluation Kit for the MAX194 and MAX195|
|Evaluation Board||1039||MAX195EVKIT Evaluation Kit for the MAX194 and MAX195|
|Evaluation Board||1039||MAX194EVC16 Evaluation Kit for the MAX194 and MAX195|
|Evaluation Board||1039||MAX195EVC16 Evaluation Kit for the MAX194 and MAX195|