46.18 ADC Electrical Specifications
AC CHARACTERISTICS | Standard
Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise
stated) Operating temperature: -40°C ≤ TA ≤ +85°C for Industrial | ||||||
---|---|---|---|---|---|---|---|
Param. No. | Symbol | Characteristics | Min. | Typ. | Max. | Units | Conditions |
Device Supply | |||||||
ADC_1 | AVDD | ADC Module Supply | 2.7V | — | 5.5V | V | VDD = VDDIO |
Reference Inputs | |||||||
ADC_3 | VREF(1) | ADC Reference Voltage | 2.7V | — | AVDD | V | VREF = AVDD (REFCTRL.REFSEL = 0x5) |
2.4V | — | AVDD-0.6V | V | AVDD ≥ VREF +
0.6V VREF = INTREF (REFCTRL.REFSEL = 0x0) VREF = AVDD / 1.6 (REFCTRL.REFSEL = 0x1) VREF = AVDD / 2 (REFCTRL.REFSEL = 0x2) VREF = VREFA pin (REFCTRL.REFSEL = 0x3) VREF = DAC output (REFCTRL.REFSEL = 0x4) | |||
Analog Input Range | |||||||
ADC_7 | AFS | Full-Scale Analog Input Signal Range (Single-Ended) | AVSS | — | VREF | V | |
ADC_9 | Full-Scale Analog Input Signal Range (Differential) | -VREF | — | VREF | V | ||
ADC_10 | VCMIN | Input common mode voltage | 0.2 | VREF-0.2 | V | CTRLC.R2R = 1 | |
VREF/2 - 0.2 | VREF/2 + 0.2 | V | CTRLC.R2R = 0 | ||||
ADC_11 | TSETTLING | ADC Stabilization Time | — | 10 | — | µs | CTRLA.ENABLE=1 or CTRLA.ONDEMAND=1 |
Note:
|
AC CHARACTERISTICS | Standard
Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise
stated) Operating temperature: -40°C ≤ TA ≤ +85°C for Industrial | ||||||
---|---|---|---|---|---|---|---|
Param. No. | Symbol | Characteristics | Min. | Typ. | Max. | Units | Conditions |
SINGLE ENDED MODE ADC Accuracy | |||||||
SADC_11 | Res | Resolution | 8 | — | 12 | bits | Selectable 8, 10, 12 bit Resolution Ranges |
SADC_13a | ENOB (3) | Effective Number of bits | 9.4 | — | — | bits | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V |
SADC_13b | 9.4 | — | — | bits | 1 Msps, REFCTRL.REFSEL = 0x5 = AVDD
VREF = AVDD = 3.3V | ||
SADC_13c | 9.4 | — | — | bits | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V | ||
SADC_13d | 8.8 | — | — | bits | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF AVDD = 5.0V Internal VREF = INTREF = 4.096V | ||
SADC_19 | INL (3) | Integral Non-linearity | -4.5 | — | 4.5 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V (5) |
SADC_19b | -4.2 | — | 4.2 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 = AVDD
VREF = AVDD = 3.3V (5) | ||
SADC_19c | -4.2 | — | 4.2 | LSB | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V (6) | ||
SADC_19d | -6.5 | — | 6.5 | LSB | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V (6) | ||
SADC_25a | DNL (3) | Differential Non-linearity | -0.99 | — | 1.5 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V (5) |
SADC_25b | -0.99 | — | 1.6 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 = AVDD
VREF = AVDD = 3.3V (5) | ||
SADC_25c | -0.99 | — | 1.5 | LSB | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V (6) | ||
SADC_25d | -0.99 | — | 2.1 | LSB | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V (6) | ||
SADC_31a | GERR (3) | Gain Error | -13.0 | — | 2.7 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V (5) |
SADC_31b | -13.3 | — | 3.5 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 = AVDD
VREF = AVDD = 3.3V (5) | ||
SADC_31c | -31.6 | — | 18.6 | LSB | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V (6) | ||
SADC_31d | -247.5 | — | 89.1 | LSB | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V (6) | ||
SADC_37a | EOFF (3) | Offset Error | -31.6 | — | 39.3 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V (5) |
SADC_37b | -29.1 | — | 45.7 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 = AVDD
VREF = AVDD = 3.3V (5) | ||
SADC_37c | -30.1 | — | 44.7 | LSB | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V (6) | ||
SADC_37d | -28.4 | — | 42.7 | LSB | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V (6) | ||
SADC_43a | TUE (3) | Total Unadjusted Error | 3.2 | — | 20.1 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V (5) |
SADC_43b | 2.7 | — | 25.8 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 = AVDD
VREF = AVDD = 3.3V (5) | ||
SADC_43c | 3.1 | — | 25.4 | LSB | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V (6) | ||
SADC_43d | 13.7 | — | 135 | LSB | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V (6) | ||
SINGLE ENDED MODE ADC Dynamic Performance (1,2,3) | |||||||
SADC_49a | SINAD | Signal to Noise and Distortion | 58 | — | — | dB | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V |
SADC_49b | 58 | — | — | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 3.3V | |||
SADC_49c | 58 | — | — | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V | |||
SADC_49d | 54 | — | — | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V | |||
SADC_51a | SNR | Signal to Noise ratio | 59 | — | — | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V | |
SADC_51b | 59 | — | — | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 3.3V | |||
SADC_51c | 59 | — | — | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V | |||
SADC_51d | 54 | — | — | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V | |||
SADC_53a | SFDR | Spurious Free Dynamic Range | 63 | — | — | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V | |
SADC_53b | 65 | — | — | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 3.3V | |||
SADC_53c | 63 | — | — | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V | |||
SADC_53d | 62 | — | — | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V | |||
SADC_55a | THD (4) | Total Harmonic Distortion | — | — | -63 | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V | |
SADC_55b | — | — | -63 | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 3.3V | |||
SADC_55c | — | — | -62 | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V | |||
SADC_55d | — | — | -62 | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V |
- Characterized with an analog input sine wave = (FTP(max) / 100). Example: FTP(max)=1Msps/100 = 10 kHz sine wave.
- Sine wave peak amplitude = 96% ADC Full Scale amplitude input with 12 bit resolution.
- Spec values collected under the following additional conditions:
- 12 bit resolution mode.
- All registers at reset default value unless otherwise mentioned.
- Value taken over 7 harmonics.
- SAMPCTRL.OFFCOMP = 0,
SAMPCTRL.SAMPLEN[5:0] = 3.
- SAMPCTRL.OFFCOMP = 0 and
SAMPCTRL.REFCOMP = 0,
SAMPCTRL.SAMPLEN[5:0] = 3.
AC CHARACTERISTICS | Standard
Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise
stated) Operating temperature: -40°C ≤ TA ≤ +85°C for Industrial | ||||||
---|---|---|---|---|---|---|---|
Param. No. | Symbol | Characteristics | Min. | Typ. | Max. | Units | Conditions |
DIFFERENTIAL MODE ADC Accuracy | |||||||
DADC_11 | Res | Resolution | 8 | — | 12 | bits | Selectable 8, 10, 12 bit Resolution Ranges |
DADC_13a | ENOB (3) | Effective Number of bits | 10.5 | — | — | bits | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V |
DADC_13b | 10.5 | — | — | bits | 1 Msps, REFCTRL.REFSEL = 0x5 = AVDD
VREF = AVDD = 3.3V | ||
DADC_13c | 10.4 | — | — | bits | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V | ||
DADC_13d | 9.9 | — | — | bits | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V | ||
DADC_19a | INL (3) | Integral Nonlinearity | -2.2 | — | 2.2 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V (5) |
DADC_19b | -2 | — | 2 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 = AVDD
VREF = AVDD = 3.3V (5) | ||
DADC_19c | -2.2 | — | 2.2 | LSB | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V (6) | ||
DADC_19d | -6 | — | 6 | LSB | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V | ||
DADC_25a | DNL (3) | Differential Nonlinearity | -0.99 | — | 1.2 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V (5) |
DADC_25b | -0.99 | — | 1.3 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 = AVDD
VREF = AVDD = 3.3V (5) | ||
DADC_25c | -0.99 | — | 1.3 | LSB | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V (6) | ||
DADC_25d | -0.99 | — | 2.5 | LSB | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V (6) | ||
DADC_31a | GERR (3) | Gain Error | -1.4 | — | 5.2 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V (5) |
DADC_31b | -1.05 | — | 5.66 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 = AVDD
VREF = AVDD = 3.3V (5) | ||
DADC_31c | -23.38 | — | 25.29 | LSB | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V (6) | ||
DADC_31d | -237.2 | — | 91.56 | LSB | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V (6) | ||
DADC_37a | EOFF (3) | Offset Error | -4.15 | — | 4.65 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V (5) |
DADC_37b | -5.81 | — | 6.99 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 = AVDD
VREF = AVDD = 3.3V (5) | ||
DADC_37c | -5.56 | — | 9.48 | LSB | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V (6) | ||
DADC_37d | -4.21 | — | 5.71 | LSB | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V (6) | ||
DADC_43a | TUE (3) | Total Unadjusted Error | 1.8 | — | 4.6 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V (5) |
DADC_43b | 1.4 | — | 5.4 | LSB | 1 Msps, REFCTRL.REFSEL = 0x5 = AVDD
VREF = AVDD = 3.3V (5) | ||
DADC_43c | 1.9 | — | 10.9 | LSB | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V (6) | ||
DADC_43d | 5.4 | — | 74.1 | LSB | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V (6) | ||
DIFFERENTIAL MODE ADC Dynamic Performance (1,2,3) | |||||||
DADC_49a | SINAD | Signal to Noise and Distortion | 64 | — | — | dB | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V |
DADC_49b | 65 | — | — | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 3.3V | |||
DADC_49c | 64 | — | — | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V | |||
DADC_49d | 61 | — | — | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V | |||
DADC_51a | SNR | Signal to Noise ratio | 65 | — | — | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V | |
DADC_51b | 65 | — | — | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 3.3V | |||
DADC_51c | 65 | — | — | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V | |||
DADC_51d | 61 | — | — | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V | |||
DADC_53a | SFDR | Spurious Free Dynamic Range | 69 | — | — | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V | |
DADC_53b | 71 | — | — | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 3.3V | |||
DADC_53c | 68 | — | — | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V | |||
DADC_53d | 69 | — | — | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V | |||
DADC_55a | THD (4) | Total Harmonic Distortion | — | — | -70 | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 5.0V | |
DADC_55b | — | — | -70 | 1 Msps, REFCTRL.REFSEL = 0x5 =
AVDD VREF = AVDD = 3.3V | |||
DADC_55c | — | — | -69 | 1 Msps, REFCTRL.REFSEL = 0x3 = VREFA pin
AVDD = 5.0V VREF = VREFA = 3.0V | |||
DADC_55d | — | — | -69 | 1 Msps, REFCTRL.REFSEL = 0x0 = INTREF
AVDD = 5.0V Internal VREF = INTREF = 4.096V |
- Characterized with an analog input sine wave = (FTP(max) / 100). Example: FTP(max)=1Msps/100 = 10 kHz sine wave.
- Sine wave peak amplitude = 96% ADC_ Full Scale amplitude input with 12bit resolution.
- Spec values collected under the following additional conditions:
- 12 bit resolution mode.
- All registers at reset default value unless otherwise mentioned.
- Value taken over 7 harmonics.
- SAMPCTRL.OFFCOMP = 1.
- SAMPCTRL.OFFCOMP = 1 and SAMPCTRL.REFCOMP = 1.
AC CHARACTERISTICS | Standard
Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise
stated) Operating temperature: -40°C ≤ TA ≤ +85°C for Industrial | ||||||
---|---|---|---|---|---|---|---|
Param. No. | Symbol | Characteristics | Min. | Typ. | Max. | Units | Conditions |
ADC_ Clock Requirements | |||||||
ADC_57 | TAD | ADC Clock Period | 62.5 | — | 6250 | ns | |
ADC_58 | fGCLK_ADCx | ADCx Module GCLK max input freq | — | — | FCLK_51 | MHz | |
ADC Single-Ended Throughput Rates | |||||||
ADC_59 | FTP (Single-Ended Mode) (3) | Throughput Rate
(Single-Ended) | — | — | 1.231 | Msps | 12-bit resolution, Rsource ≤298 Ω, SAMPCTRL.SAMPLEN=0 (1) |
— | — | 1.333 | 10-bit resolution, Rsource ≤633 Ω, SAMPCTRL.SAMPLEN=0 (1) | ||||
— | — | 1.6 | 8-bit resolution, Rsource ≤1,103 Ω, SAMPCTRL.SAMPLEN=0 (1) | ||||
— | — | 1 | Msps | 12-bit resolution, Rsource ≤6,335 Ω SAMPCTRL.SAMPLEN=n/a (2) | |||
— | — | 1.067 | 10-bit resolution, Rsource ≤7,677 Ω SAMPCTRL.SAMPLEN=n/a (2) | ||||
— | — | 1.231 | 8-bit resolution, Rsource ≤9,556 Ω SAMPCTRL.SAMPLEN=n/a (2) | ||||
ADC Differential Mode Throughput Rates | |||||||
ADC_61 | FTPR (Differential Mode) (3) | Throughput Rate
(Differential Mode) | — | — | 1.231 | Msps | 12-bit resolution, Rsource ≤298 Ω, SAMPCTRL.SAMPLEN=0 (1) |
— | — | 1.455 | 10-bit resolution, Rsource ≤633 Ω, SAMPCTRL.SAMPLEN=0 (1) | ||||
— | — | 1.778 | 8-bit resolution, Rsource ≤1,103 Ω, SAMPCTRL.SAMPLEN=0 (1) | ||||
— | — | 1 | Msps | 12-bit resolution, Rsource ≤6,335 Ω SAMPCTRL.SAMPLEN=n/a (2) | |||
— | — | 1.143 | 10-bit resolution, Rsource ≤7,677 Ω SAMPCTRL.SAMPLEN=n/a (2) | ||||
— | — | 1.333 | 8-bit resolution, Rsource ≤9,556 Ω SAMPCTRL.SAMPLEN=n/a (2) |
- ADC Sample time = ((SAMPCTRL.SAMPLEN + 1) * TAD) and SAMPCTRL.OFFCOMP=0.
- ADC HDW forces sample time to 4*TAD when SAMPCTRL.OFFCOMP=1, user SAMPCTRL.SAMPLEN is ignored.
- ADC Throughput Rate FTP = ((1 / ((TSAMP + TCNV) * TAD)) / (number of user active analog inputs in use on specific target ADC module)).
AC CHARACTERISTICS | Standard
Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise
stated) Operating temperature -40°C ≤ TA ≤ +85°C for Industrial | ||||||
---|---|---|---|---|---|---|---|
Param. No. | Symbol | Characteristics | Min. | Typ. | Max. | Units | Conditions |
ADC_63 | TSAMP (1,2,3) | ADC Sample Time | 1 | — | — | TAD | 12-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 298 Ω |
10-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 633 Ω | |||||||
8-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 1,103 Ω | |||||||
2 | — | — | 12-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 2,310 Ω | ||||
10-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 2,981 Ω | |||||||
8-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 3,921 Ω | |||||||
3 | — | — | 12-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 4,323 Ω | ||||
10-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 5,329 Ω | |||||||
8-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 6,738 Ω | |||||||
4 | — | — | 12-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 6,335 Ω | ||||
10-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 7,678 Ω | |||||||
8-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 9,556 Ω | |||||||
5 | — | — | 12-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 8,348 Ω | ||||
10-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 10,026 Ω | |||||||
8-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 12,374 Ω | |||||||
6 | — | — | 12-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 10,361 Ω | ||||
10-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 12,374 Ω | |||||||
8-bit resolution, TAD(min), Ext Analog Input Rsource ≤ 15,192 Ω | |||||||
250 | — | — | ns | With SCALEDVDDCORE or SCALEDAVDD as input | |||
10 | — | — | µs | With INTREF as input | |||
ADC_65 | TCNV (3) | Conversion Time (Single-Ended Mode) | 12 | TAD | 12-bit resolution | ||
11 | 10-bit resolution | ||||||
9 | 8-bit resolution | ||||||
ADC_67 | Conversion Time (Differential Mode) | 12 | TAD | 12-bit resolution | |||
10 | 10-bit resolution | ||||||
8 | 8-bit resolution | ||||||
ADC_69 | CSAMPLE | ADC Internal Sample Cap | — | — | 3.2 | pF | - |
ADC_71 | RSAMPLE | ADC Internal impedance | — | — | 1715 | Ω | - |
- When SAMPCTRL.OFFCOMP = 0:
- TSAMP = (((RSAMPLE + RSOURCE) * CSAMPLE * 9.7) / TAD)+1 rounded down to nearest whole integer
- User SAMPCTRL.SAMPLEN = (TSAMP - 1)
- When SAMPCTRL.OFFCOMP=1:
- TSAMP = 4 (Forced by HDW)
- User SAMPCTRL.SAMPLEN = (n/a, Ignored by HDW)
- ADC Throughput Rate FTP = ((1 / ((TSAMP + TCNV) * TAD)) / (number of user active analog inputs in use on specific target ADC module)).