TLC320AC02C_15 Datasheet, PDF (44/86 Pages) Texas Instruments – Single-Supply Analog Interface Circuit

3.5.10 Power-Supply Rejection, V_DD = 5 V (Unless Otherwise Noted) (see Note 17)
PARAMETER
TEST CONDITIONS MIN TYP† MAX UNIT
ADC VDD Supply-voltage rejection ratio, ADC channel
DAC VDD Supply-voltage rejection ratio, DAC channel
DGTL VDD Supply-voltage rejection ratio, ADC channel
fi = 0 to 30 kHz
fi = 30 to 50 kHz
fi = 0 to 30 kHz
fi = 30 to 50 kHz
fi = 0 to 30 kHz
fi = 30 to 50 kHz
Single ended,
fi = 0 to 30 kHz
50
55
40
45
50
55
dB
40
DGTL VDD Supply-voltage rejection ratio, DAC channel
fi = 30 to 50 kHz
Differential,
fi = 0 to 30 kHz
45
40
fi = 30 to 50 kHz
45
† _{All typical values are at VDD = 5 V and TA = 25°C.}
NOTE 17: Power supply rejection measurements are made with both the ADC and the DAC channels idle and a 200-mV
peak-to-peak signal applied to the appropriate supply.
3.5.11 Crosstalk Attenuation, V_DD = 5 V (Unless Otherwise Noted)
PARAMETER
TEST CONDITIONS
MIN TYP† MAX UNIT
ADC channel crosstalk attenuation
DAC channel idle with
DIN = 00000000000000,
ADC input = 0 dB,
1020-Hz sine wave,
Gain = 0 dB (see Note 18)
80
dB
DAC channel crosstalk attenuation
ADC channel idle with INP, INM,
AUX IN +, and AUX IN – at ADC VMID
DAC channel input = digital equivalent
of a 1020-Hz sine wave (see Note 19)
80
dB
80
† _{All typical values are at VDD = 5 V and TA = 25°C.}
NOTES: 18. The test signal is a 1020-Hz sine wave with a 0 dB = 6-V peak-to-peak reference level for the analog input
signal.
19. The input signal is the digital equivalent of a 1020-Hz sine wave (digital full scale = 0 dB). The nominal
differential DAC channel output with this input condition is 6 V peak to peak. The load impedance for the
DAC output buffer is 600 Ω from OUT + to OUT –.
3–6