I. ANALOG-TO-DIGITAL CONVERTER (ADC) Specifications

️· Resolution: 12-bit
️· Input Range: Not explicitly stated, but implied to be from 0V to VREFDAC (which is 5V).
️· Input Capacitance:
- Single-ended, with PGA gain = 1: 13.6 pF
- Single-ended, with PGA gain = 2: 2 pF
- Single-ended, with PGA gain = 4: 4 pF
- Single-ended, with PGA gain = 8: 8 pF
- Single-ended, with PGA gain = 16: 16 pF
- Single-ended, with PGA gain = 32: 32 pF
️· Large-Signal Bandwidth:
- PGA Gain = 1: 180 kHz
- PGA Gain = 2: 140 kHz
- PGA Gain = 4: 120 kHz
- PGA Gain = 8: 100 kHz
- PGA Gain = 16: 82 kHz
- PGA Gain = 32: 80 kHz
️· Input Common-Mode Rejection Ratio (CMRR): -70 to -90 dB
️· Power Supply Rejection Ratio (PSRR): 67 to 75 dB
️· Input Capacitance: Values vary depending on PGA gain.
️· Differential Nonlinearity (DNLDAC): ±0.4 to ±1 LSB
️· Integral Nonlinearity (INLDAC): ±0.5 to ±4 LSB
️· Offset Error: ±2.5 to ±30 mV
️· Offset-Error Temperature Coefficient: ±5 µV/°C
️· Gain Error: ±3 to ±20 LSB
️· Gain-Error Temperature Coefficient: ±2 ppm of FSR/°C
️· Output Range: 0 to VREFDAC
️· DC Output Impedance: 0.5 Ω (enabled)
️· DC Output Impedance: 105 kΩ (power-down)
️· Output Slew Rate: 0.6 V/µs
️· Output Settling Time: 8 to 15 µs
️· Output Short-Circuit Current: -27 mA (short to AGND) and 46 mA (short to AVDD)

II. DIGITAL-TO-ANALOG CONVERTER (DAC) Specifications

️· Resolution: 12-bit
️· Differential Nonlinearity (DNL): ±0.4 to ±1 LSB
️· Integral Nonlinearity (INL): ±0.5 to ±4 LSB
️· Offset Error: ±2.5 to ±30 mV
️· Offset-Error Temperature Coefficient: ±5 µV/°C
️· Gain Error: ±3 to ±20 LSB
️· Gain-Error Temperature Coefficient: ±2 ppm of FSR/°C
️· Output Range: 0 to VREFDAC (5V)
️· DC Output Impedance (enabled): 0.5 Ω
️· DC Output Impedance (power-down): 105 kΩ
️· Output Slew Rate: 0.6 V/µs
️· Output Settling Time: 8 to 15 µs
️· Output Short-Circuit Current: -27 mA (AGND) to +46 mA (AVDD)



Notes and Implications:

️· VREFDAC: This is the reference voltage for both the ADC and DAC. It is stated to be 5V.
️· PGA (Programmable Gain Amplifier): The ADC utilizes a programmable gain amplifier to adjust the sensitivity of the input signal. The input capacitance is dependent on PGA gain. Higher gain reduces the required input voltage range but can amplify noise.
️· DNL & INL: These are key metrics for DAC linearity. Lower values are better. DNL measures the step size between output codes, while INL measures the difference between the actual output voltage and the ideal output voltage.
️· Temperature Coefficients: Indicate how the offset and gain will change with temperature variations.
️· Settling Time: Important for applications where the DAC output needs to change quickly.
️· Short-Circuit Currents: These values represent the currents that flow when the DAC output is shorted to ground or the power supply, useful for protection circuit design.