50.21 Operational Amplifier Specifications

Table 50-18. 

Standard Operating Conditions (unless otherwise stated)

VDD = 3.0V, VCM = 1.5V, CLOAD = 50pF, Unity-Gain mode
Param No. Sym. Characteristic Min. Typ. † Max. Units Conditions
Operating Conditions
OPA01 VDD Supply Voltage Range 2.0 — VDDMAX V
OPA02 VIN Input Voltage Range -0.3 — VDD + 0.3 V
OPA02A -0.3 — VDD - 0.7 V
OPA03* TON Turn-On Time — 1.3 — μs
OPA04* TCAL Self-Calibration Time — 20 — ms
Input Offset
OPA05 VOS Input Offset -3 ±1 +3 mV T = 25°C, VCM = VDD/2
OPA05A Input Offset after Self-Calibration -2 ±0.5 +2 mV T = Self-Calibration at temperature
OPA06* VCAL Calibration Step — 0.5 — mV
OPA07* ΔVOS/ΔTA Drift with Temperature — < ±20 — μV/°C
OPA08* CMRR Common-Mode Rejection Ratio — 78 — dB
OPA09* PSRR Power Supply Rejection Ratio — 63 — dB
Gain
OPA10* AOL Open-Loop Gain — 74 — dB
OPA11* ACL Gain with Internal Resistor Ladder(2,3) 1.01 — 1.11 V/V GSEL = 'b000
OPA11A* 1.08 — 1.19 V/V GSEL = 'b001
OPA11B* 1.25 — 1.38 V/V GSEL = 'b010
OPA11C* 1.83 — 2.05 V/V GSEL = 'b011
OPA11D* 2.4 — 2.72 V/V GSEL = 'b100
OPA11E* 3.55 — 4.07 V/V GSEL = 'b101
OPA11F* 6.94 — 8.14 V/V GSEL = 'b110
OPA11G* 13.49 — 16.31 V/V GSEL = 'b111
Output
OPA12* VO Output Voltage Swing [0.1] — [VDD - 0.1] V ILOAD = ±1 mA(1)
OPA13* ISC Short-Circuit Sourcing Current — -25 — mA
OPA13A* Short-Circuit Sinking Current — 30 — mA
AC Response
OPA14* GBWP Gain Bandwidth Product — 5.5 — MHz
OPA15* SRRISE Slew Rate, Rise — 6 — V/μs
OPA16* SRFALL Slew Rate, Fall — 6 — V/μs
OPA17* PM Phase Margin — 88 — Degrees
Noise
OPA18* Eni Input Noise Voltage — 180 — μVPP ƒ = 0.1 - 10 Hz
OPA19* eni Input Noise Voltage Density — 100 — nV/√(Hz) ƒ= 1 kHz
Resistor Ladder
OPA20* RLAD Resistor Ladder Unit Resistance(2) — — 4 kΩ

* These parameters are characterized but not tested.

† Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested.

Note:
  1. Output swing depends on load.
  2. Internal resistor ladder consists of multiple unit resistors 'R'.
  3. Internal gain set to Noninverting (1 + R2/R1).