OPA1662-Q1_16 Datasheet, PDF (22/33 Pages) Texas Instruments – Operational Amplifier

OPA1662-Q1
SLOS805C – JULY 2012 – REVISED AUGUST 2016
The overall transfer function is shown in Equation 6:
vo
R R3
1
IoutL +
-
IoutL -
= _{1+ RCS} ´
R1 ^´ ₁₊
R1
R2R3
/ /R2 / /R3
C
2S
+
2R2R3C1C
2S
2
DC gain = ^RR3
The
R1 and is 398 mV/mA.
The poles are at 53 KHz and 80 KHz.
9.2.3 Application Curves
www.ti.com
(6)
CH1 = positive input current I_OUTL+ = 1.5 V / 150 Ω
CH2 = negative input current I_OUTL– = 1.5 V / 150 Ω
CH3 = output single-ended voltage
Figure 50. Output Voltage at 10 mApp and 10 Hz
CH1 = positive input current I_OUTL+ = 1.5 V / 150 Ω
CH2 = negative input current I_OUTL– = 1.5 V / 150 Ω
CH3 = output single-ended voltage
Figure 51. Output Voltage at 10 mApp and 20 KHz
10 Power Supply Recommendations
The OPA1662-Q1 is specified for operation from 3 V to 36 V (±1.5 V to 18 V) and at an ambient operating
temperature from –40°C to 85°C. Parameters that can exhibit significant variance with regard to operating
voltage or temperature are presented in Typical Characteristics.
11 Layout
11.1 Layout Guidelines
The OPA1662-Q1 is a unity-gain stable, precision dual op amp with very low noise. To realize the full operational
performance of the device, good high-frequency printed-circuit board (PCB) layout practices are required. Low-
loss, 0.1-µF bypass capacitors must be connected between each supply pin and ground as close to the device
as possible. The bypass capacitor traces must be designed for minimum inductance.
22
Submit Documentation Feedback
Copyright © 2012–2016, Texas Instruments Incorporated
Product Folder Links: OPA1662-Q1