SGM8046 Datasheet, PDF (4/10 Pages) SG Micro Corp – Input/Output Operational Amplifier

SGM8046
670nA, Non-Unity Gain, Dual Rail-to-Rail
Input/Output Operational Amplifier
ELECTRICAL CHARACTERISTICS
+VS = +1.4V to +5.0V, -VS = GND, TA = +25°C, AV = 10, VCM = +VS/2, VOUT ≈ +VS/2 and RL = 1MΩ to +VS/2, CL = 60pF ⁽¹⁾, unless
otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
AC ELECTRICAL CHARACTERISTICS
Gain-Bandwidth Product
100
kHz
Slew Rate (SR)
Phase Margin (PM)
Input Voltage Noise (e_n p-p)
+V_S = 1.4V, V_OUT = 1V Step
+V_S = 2.5V, V_OUT = 1V Step
+VS = 5.0V, VOUT = 2V Step
+VS = 1.4V to 5.5V
+V_S = 1.4V, f = 0.1Hz to 10Hz
+V_S = 2.5V, f = 0.1Hz to 10Hz
10.5
12.5
14.5
60
3.2
3.0
V/ms
°
µV_P-P
Input Voltage Noise Density (e_n)
+VS = 5.0V, f = 0.1Hz to 10Hz
+VS = 1.4V, f = 1kHz
+V_S = 2.5V, f = 1kHz
+V_S = 5.0V, f = 1kHz
3.0
190
180
nV/ HZ
190
NOTE1: Refer to Figure 1 and Figure 2.
TEST CIRCUITS
The test circuits used for the DC and AC tests are shown in Figure 1 and Figure 2. The bypass capacitors are laid out according to the
rules discussed in “Supply Bypass”.
+V_S
0.1μF 1μF
V_IN
+V_S/2
R_N
+
1 _{2 SGM8046}
R_G
R_F
V_OUT
C_L
R_L
+V_S/2
Figure 1. AC and DC Test Circuit for Most Non-Inverting Gain
Conditions.
+V_S
0.1μF 1μF
+V_S/2
V_IN
R_N
+
1 _{2 SGM8046}
R_G
R_F
C_L
R_L
+V_S/2
V_OUT
Figure 2. AC and DC Test Circuit for Most Inverting Gain
Conditions.
SG Micro Corp
4
www.sg-micro.com