44.4.8 Operational Amplifier Specifications

Table 44-14.
Standard Operating Conditions (unless otherwise stated) V_DD = 3.0V, V_CM = 1.5V, C_LOAD = 50pF, Unity-Gain mode
Param No.	Sym.	Characteristic	Min.	Typ. †	Max.	Units	Conditions
Operating Conditions
OPA01	V_DD	Supply Voltage Range	2.0	—	V_DDMAX	V
OPA02	V_IN	Input Voltage Range	-0.3	—	V_DD + 0.3	V	CPON = `1`
OPA02A	V_IN	Input Voltage Range	-0.3	—	V_DD - 0.7	V	CPON = `0`
OPA03*	T_ON	Turn-on Time	—	1.3	—	μs
Input Offset
OPA05	V_OS	Input Offset	-7	±1	7	mV	V_CM = V_DD/2, V_DD = 3.0V, T = 25°C
OPA06*	V_CAL	Calibration Step	—	0.5	—	mV
OPA07*	ΔV_OS/ΔT_A	Drift with Temperature	-20	—	20	μV/°C
OPA08*	CMRR	Common-Mode Rejection Ratio	—	78	—	dB
OPA09*	PSRR	Power Supply Rejection Ratio	—	70	—	dB	0.1 - 1.0 kHz frequency range
Gain
OPA10*	A_OL	Open-Loop Gain	—	74	—	dB
OPA11	A_CL	Gain Accuracy with Internal Resistor Ladder	—	1.07	—	V/V	GSEL = `'b000`
OPA11A			—	1.15	—	V/V	GSEL = `'b001`
OPA11B			—	1.34	—	V/V	GSEL = `'b010`
OPA11C			—	2.01	—	V/V	GSEL = `'b011`
OPA11D			—	2.67	—	V/V	GSEL = `'b100`
OPA11E			—	4.00	—	V/V	GSEL = `'b101`
OPA11F			—	7.97	—	V/V	GSEL = `'b110`
OPA11G			—	15.81	—	V/V	GSEL = `'b111`
Output
OPA12	V_O	Output Voltage Swing	0.1	—	V_DD - 0.1	V	ILOAD = ±1 mA⁽¹⁾
OPA13*	I_SC	Short-Circuit Sourcing Current	—	-25	—	mA
OPA13A*	I_SC	Short-Circuit Sinking Current	—	30	—	mA
AC Response
OPA14*	GBWP	Gain Bandwidth Product	—	5.5	—	MHz
OPA15*	SR_RISE	Slew Rate, Rise	—	2.5	—	V/μs
OPA16*	SR_FALL	Slew Rate, Fall	—	2.8	—	V/μs
OPA17*	P_M	Phase Margin	—	88	—	Degrees
Noise
OPA18*	E_ni	Input Noise Voltage	—	180	—	μV_PP	ƒ = 0.1 - 10 Hz
OPA19*	e_ni	Input Noise Voltage Density	—	100	—	nV/√(Hz)	ƒ= 1 kHz
Resistor Ladder
OPA20*	R_LAD	Resistor Ladder Unit Resistance⁽²⁾	—	4	—	kΩ
† Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. * These parameters are characterized but not tested. Note: Output swing depends on load. Internal resistor ladder consists of multiple unit resistors 'R'.