SBAS891B November 2017 – September 2022 ADS7142-Q1
PRODUCTION DATA
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
SAMPLING DYNAMICS | ||||||
tconv | Conversion time | AVDD = 1.65 V to 3.6 V | 1.8 | µs | ||
tacq | Acquisition time | AVDD = 1.65 V to 3.6 V | 18 | TSCL | ||
tcycle | Cycle time | AVDD = 1.65 V to 3.6 V, SCL = 3.4 MHz | 7.1 | µs | ||
DC SPECIFICATIONS | ||||||
Resolution | 12 | Bits | ||||
NMC | No missing codes | AVDD = 1.65 V to 3.6 V | 12 | Bits | ||
DNL | Differential nonlinearity | AVDD = 1.65 V to 3.6 V | –0.99 | ±0.3 | 1 | LSB(1) |
INL | Integral nonlinearity | –2.75 | ±0.5 | 2.75 | LSB | |
EO | Offset error | Post offset calibration | –4 | ±0.5 | 4 | LSB |
dVOS/dT | Offset drift with temperature | Post offset calibration | 5 | ppm/°C | ||
EG | Gain error | –0.1 | ±0.03 | 0.1 | %FSR | |
Gain error drift with temperature | 5 | ppm/°C | ||||
AC SPECIFICATIONS | ||||||
SNR(2) | Signal-to-noise ratio | fIN = 2 kHz, AVDD = 3 V, fSAMPLE = 140 kSPS |
68.75 | 70 | dB | |
fIN = 2 kHz, AVDD = 1.8 V, fSAMPLE = 140 kSPS |
68 | |||||
THD(2)(3) | Total harmonic distortion | fIN = 2 kHz, AVDD = 3 V, fSAMPLE = 140 kSPS |
–85 | dB | ||
fIN = 2 kHz, AVDD = 1.8 V, fSAMPLE = 140 kSPS |
–80 | |||||
SINAD(2) | Signal-to-noise and distortion | fIN = 2 kHz, AVDD = 3 V, fSAMPLE = 140 kSPS |
68.5 | 69.5 | dB | |
fIN = 2 kHz, AVDD = 1.8 V, fSAMPLE = 140 kSPS |
67.5 | |||||
SFDR(2) | Spurious-free dynamic range | fIN = 2 kHz, AVDD = 3 V, fSAMPLE = 140 kSPS |
90 | dB | ||
BW | –3-dB small-signal bandwidth | 25 | MHz | |||
POWER CONSUMPTION | ||||||
IAVDD | Analog supply current | fSAMPLE = 140 kSPS, SCL = 3.4 MHz | 265 | 300 | µA | |
fSAMPLE= 5.5 kSPS, SCL = 100 kHz | 8 | |||||
fSAMPLE = 140 kSPS, SCL = 3.4 MHz, AVDD = 1.8 V | 160 | |||||
fSAMPLE = 5.5 kSPS, SCL = 100 kHz, AVDD = 1.8 V | 5 | |||||
IDVDD | Digital supply current | fSAMPLE = 140 kSPS, SCL = 3.4 MHz, SDA = AAA0h | 25 | µA | ||
fSAMPLE = 5.5 kSPS, SCL = 100 kHz, SDA = AAA0h | 2 | |||||
fSAMPLE = 140 kSPS, SCL = 3.4 MHz, AVDD = 1.8 V, SDA = AAA0h | 15 | |||||
IAVDD | Static analog supply current | No activity on SCL and SDA | 6 | nA | ||
IDVDD | Static digital supply current | No activity on SCL and SDA | 2 | nA |