OPA364IDBVRG4 Datasheet, PDF (8/38 Pages) Texas Instruments – 1.8V, 7MHz, 90dB CMRR, Single-Supply, Rail-to-Rail I/O Operational Amplifier

OPA363, OPA2363
OPA364, OPA2364, OPA4364
SBOS259C – SEPTEMBER 2002 – REVISED MAY 2013
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TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C, R_L = 10kΩ connected to V_S/2, V_OUT = V_S/2, and V_CM = V_S/2, unless otherwise noted.
SMALL-SIGNAL STEP RESPONSE
LARGE-SIGNAL STEP RESPONSE
(C_L = 100pF)
(C_L = 100pF)
250ns/div
Figure 19.
1ms/div
Figure 20.
APPLICATION INFORMATION
The OPA363 and OPA364 series op amps are rail-to-rail operational amplifiers with excellent CMRR, low noise,
low offset, and wide bandwidth on supply voltages as low as ±0.9V. The OPA363 features an additional pin for
shutdown/ enable function. These families do not exhibit phase reversal and are unity-gain stable. Specified over
the industrial temperature range of –40°C to +125°C, the OPA363 and OPA364 families offer precision
performance for a wide range of applications.
RAIL-TO-RAIL INPUT
The OPA363 and OPA364 feature excellent rail-to-rail operation, with supply voltages as low as ±0.9V. The input
common-mode voltage range of the OPA363 and OPA364 family extends 100mV beyond supply rails. The
unique input topology of the OPA363 and OPA364 eliminates the input offset transition region typical of most rail-
to-rail complimentary stage operational amplifiers, allowing the OPA363 and OPA364 to provide superior
common-mode performance over the entire common-mode input range, as seen in Figure 21. This feature
prevents degradation of the differential linearity error and THD when driving A/D converters. A simplified
schematic of the OPA363 and OPA364 is shown in Figure 22.
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
-3.5
-0.2 0
OPA363 and OPA364
Competitors
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Common-Mode Voltage (V)
Figure 21. OPA363 and OPA364 have Linear Offset Over Entire Common-Mode Range
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