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The ADS8317 is a 16-bit, sampling, analog-to-digital (A/D) converter specified for a supply voltage range from 2.7V to 5.5V. It requires very little power, even when operating at the full data rate. At lower data rates, the high speed of the device enables it to spend most of its time in the power-down mode. For example, the average power dissipation is less than 0.2mW at a 10kHz data rate.
The ADS8317 offers excellent linearity and very low noise and distortion. It also features a synchronous serial (SPI/SSI-compatible) interface and a differential input. The reference voltage can be set to any level within the range of 0.1V to VDD/2.
Low power and small size make the ADS8317 ideal for portable and battery-operated systems. It is also an excellent fit for remote data-acquisition modules, simultaneous multichannel systems, and isolated data acquisition. The ADS8317 is available in MSOP-8 and SON-8 packages. The SON package size is the same as a 3x3 QFN package.
ADS8317 Maximum Ratings
ADS8317
UNIT
Supply voltage, VDD to GND Analog input voltage(2) Reference input voltage(2) Digital input voltage(2) Input current to any pin except supply Power dissipation Operating virtual junction temperature range, TJ Operating free-air temperature range, TA Storage temperature range, TSTG Lead Temperature 1.6mm (1/16 inch) from case for 10sec
0.3 to +7 0.3 to VDD + 0.3 0.3 to VDD + 0.3 0.3 to VDD + 0.3 20 to +20 See Dissipation Ratings Table 40 to +150 40 to +85 65 to +150 +260
V V V V mA
°C °C °C °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum rated conditions for extended periods may affect device reliability. (2) All voltage values are with respect to ground terminal.
ADS8317 Features
· 16 Bits No Missing Codes (Full-Supply Range, High or Low Grade) · Very Low Noise: 5LSBPP · Excellent Linearity: ±0.8LSB typ, ±1.5LSB max INL +0.7LSB typ, +1.25LSB max DNL ±1mV max Offset ±16LSB typ Gain Error · microPower: 10mW at 5V, 250kHz 4mW at 2.7V, 200kHz 2mW at 2.7V, 100kHz 0.2mW at 2.7V, 10kHz · MSOP-8 Package (SON-8 package available Q1, 2008; package size same as 3x3 QFN) · Pin-Compatible with the ADS8321 · Serial (SPI™/SSI) Interface
ADS8317 Typical Application
· Battery-Operated Systems · Remote Data Acquisition · Isolated Data Acquisition · Simultaneous Sampling, Multichannel Systems · Industrial Controls · Robotics · Vibration Analysis