SBAA287B May   2018  – December 2022 ADS114S06 , ADS114S06B , ADS114S08 , ADS114S08B

 

  1.   Understanding the Differences Between the ADS114S06 and ADS114S08 Standard and Cost-Optimized Versions
  2.   Trademarks
  3. 1Introduction
  4. 2Performance
  5. 3Features
  6. 4Specifications
  7. 5EVM Differences
  8. 6Alternative Device Recommendations
  9. 7Conclusion
  10. 8Revision History

2 Performance

The ADS114S06B and ADS114S08B have some relaxed specifications to help optimize cost and enable use in end-equipment that does not require the performance of the standard-grade ADCs. Table 2-1 summarizes these relaxed specifications and compares their values to the standard-grade devices.

Table 2-1 Performance Differences Between the ADS114S0x and ADS114S0xB
PARAMETERTEST CONDITIONSADS114S06
ADS114S08		ADS114S06B
ADS114S08B		UNIT
MINTYPMAXMINTYPMAX
Operating ambient temperature–50125–40125°C
Absolute input currentPGA enabled, all gains0.1±20.1±10nA
INL (best fit)PGA bypassed,
VCM = AVDD / 2		1101ppmFSR
PGA enabled, gain = 1 to 8, VCM = AVDD / 2215225
PGA enabled, gain = 16 to 128, VCM = AVDD / 2315225
Gain errorTA = 25°C, PGA bypassed0.004%0.012%0.01%0.1%
TA = 25°C, PGA enabled,
gain = 1 to 32		0.004%0.012%0.025%0.2%
TA = 25°C, PGA enabled,
gain = 64 and 128		0.004%0.02%0.025%0.2%
VREF accuracyTA = 25°C, TQFP package–0.05%±0.01%0.05%–0.2%±0.01%0.2%
TA = 25°C, QFN package–0.1%±0.01%0.1%–0.2%±0.01%0.2%
VREF temperature driftTA = –40°C to +85°C2.58840ppm/°C
TA = –50°C to +125°C310N/A
IDAC accuracy (each IDAC)TA = 25°C, 10 µA to 100 µA–5%±0.7%5%–6%±1%6%
TA = 25°C, 250 µA to 2 mA–3%±0.5%3%–6%±1%6%
IDAC current mismatchTA = 25°C, 10 µA to 100 µA0.15%0.8%0.20%
TA = 25°C, 250 µA to 750 µA0.1%0.6%0.20%
TA = 25°C, 1 mA to 2 mA0.07%0.4%0.20%
IDAC temperature drift10 µA to 750 µA20120100ppm/°C
1 mA to 2 mA1080100
IDAC temperature drift matching10 µA to 100 µA32510ppm/°C
250 µA to 2 mA21510
Oscillator accuracy–1.5%1.5%–2%2%
Device costADS114S06ADS114S06BUSD ($)
ADS114S08ADS114S08B