50.13 Op amp Electrical Specifications
| AC CHARACTERISTICS | Standard
Operating Conditions: VDD = AVDD = 1.62V to 3.63V (unless otherwise
stated) Operating temperature: -40°C ≤ TA ≤ +125°C for Extended Temp | ||||||
|---|---|---|---|---|---|---|---|
| Param. No. | Symbol | Characteristics | Min. | Typ. | Max. | Units | Conditions |
| OA_1 | VCMR | Common Mode Input Voltage Range | 0.012 | — | AVDD - 0.15 | V | — |
| OA_2 | CMRR | Common Mode Rejection Ratio | -65 | — | — | dB |
VCM = AVDD/2 |
| OA_3 | VOFFSET | Op amp Offset Voltage | -7.5 | — | 7.5 | mV | — |
| OA_4 | VIN | Input Voltage Range | AVSS | — | AVDD | V | — |
| OA_5 | ILKG | Input leakage current | — | — | DI_13 | µA | DI_13: Refer to I/O Pin Electrical Specifications |
| OA_6 | PSRR | Power Supply Rejection Ratio | — | 64.8 | — | dB | @ 10 kHz, OPAMPCTRLx.BIAS = 0x3 |
| 44.8 | @ 100 kHz, OPAMPCTRLx.BIAS = 0x3 | ||||||
| 25.1 | @ 1 MHz, OPAMPCTRLx.BIAS = 0x3 | ||||||
| OA_8 | VOH | Amplifier Output Voltage High | AVDD - 0.4 | — | — | V |
ISOURCE @ 5 mA |
| AVDD - 0.25 |
ISOURCE @ 3 mA | ||||||
| AVDD - 0.08 |
ISOURCE @ 1 mA | ||||||
| OA_9 | VOL | Amplifier Output Voltage Low | — | — | AVSS + 0.54 | V | ISINK @ 5 mA |
| AVSS + 0.32 | ISINK @ 3 mA | ||||||
| AVSS + 0.11 | ISINK @ 1 mA | ||||||
| OA_17 | PM1 | Non Unity Phase Margin | 49.1 | — | — | Degrees |
Non-inverting gain of 16 Config: OPAMPCTRLx.BIAS = 3, POTMUX = 0x7, Cload = 47 pF, Rload = 1 kΩ. Vin = 25 mVpp and Vout DC at half AVDD. |
| 56.0 |
Non-inverting gain of 16 Config: OPAMPCTRLx.BIAS = 2, POTMUX = 0x7, Cload = 47 pF, Rload = 1 kΩ. Vin = 25 mVpp and Vout DC at half AVDD. | ||||||
| 88.6 |
Non-inverting gain of 2 Config: OPAMPCTRLx.BIAS = 1, POTMUX = 0x2, Cload = 47 pF, Rload = 1 kΩ. Vin = 25 mVpp and Vout DC at half AVDD. | ||||||
| 87.2 |
Non-inverting gain of 2 Config: OPAMPCTRLx.BIAS = 0, POTMUX = 0x2, Cload = 47 pF, Rload = 1 kΩ. Vin = 25 mVpp and Vout DC at half AVDD. | ||||||
| OA_18 | GBW2 | Unity Gain Bandwidth | 4.12 | — | — | MHz |
Unity gain follower Config: OPAMPCTRLx.BIAS = 3, POTMUX = 0x0, Cload = 47 pF, Rload = 1 kΩ. Vin = 25 mVpp and Vout DC at half AVDD. GBW2 is measured at Phase = -45 deg. |
| 2.02 |
Unity gain follower Config: OPAMPCTRLx.BIAS = 2, POTMUX = 0x0, Cload = 47 pF, Rload = 1 kΩ. Vin = 25 mVpp and Vout DC at half AVDD. GBW2 is measured at Phase = -45 deg. | ||||||
| 0.75 |
Unity gain follower Config: OPAMPCTRLx.BIAS = 1, POTMUX = 0x0, Cload = 47 pF, Rload = 1 kΩ. Vin = 25 mVpp and Vout DC at half AVDD. GBW2 is measured at Phase = -45 deg. | ||||||
| 0.21 |
Unity gain follower Config: OPAMPCTRLx.BIAS = 0, POTMUX = 0x0, Cload = 47 pF, Rload = 1 kΩ. Vin = 25 mVpp and Vout DC at half AVDD. GBW2 is measured at Phase = -45 deg. | ||||||
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Note:
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