Datasheet

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SBOS107A
OPA344, 2344, 4344
OPA345, 2345, 4345
3
SPECIFICATIONS: V
S
= 2.7V to 5.5V
At T
A
= +25°C, R
L
= 10kΩ connected to V
S
/2 and V
OUT
= V
S
/2, unless otherwise noted.
Boldface limits apply over the temperature range, T
A
= –40°C to +85°C.
OPA345NA, UA
OPA2345EA, UA
OPA4345EA, UA
PARAMETER CONDITION MIN TYP MAX UNITS
OFFSET VOLTAGE
Input Offset Voltage V
OS
V
S
= +5.5V, V
CM
= V
S
/2 ±0.2 ±1mV
Over Temperature
±0.8 ±1.2 mV
vs Temperature dV
OS
/dT ±3 µV/°C
vs Power Supply PSRR V
S
= 2.7V to 5.5V, V
CM
< (V+) -1.8V 30 200 µV/V
Over Temperature V
S
= 2.7V to 5.5V, V
CM
< (V+) -1.8V 250 µV/V
Channel Separation, dc 0.2 µV/V
f = 1kHz 130 dB
INPUT BIAS CURRENT
Input Bias Current I
B
±0.2 ±10 pA
Over Temperature See Typical Curve pA
Input Offset Current I
OS
±0.2 ±10 pA
NOISE
Input Voltage Noise f = 0.1 to 50kHz 8 µVrms
Input Voltage Noise Density e
n
f = 10kHz 30 nV/√Hz
Current Noise Density i
n
f = 10kHz 0.5 fA/√Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range V
CM
–0.3 (V+) + 0.3 V
Common-Mode Rejection Ratio CMRR V
S
= +5.5V, –0.3V < V
CM
< (V+)-1.8 76 92 dB
Over Temperature V
S
= +5.5V, –0.3V < V
CM
< (V+)-1.8 74 dB
Common-Mode Rejection Ratio CMRR V
S
= +5.5V, –0.3V < V
CM
< 5.8V 70 84 dB
Over Temperature V
S
= +5.5V, –0.3V < V
CM
< 5.8V 68 dB
Common-Mode Rejection Ratio CMRR V
S
= +2.7V, –0.3V < V
CM
< 3V 66 80 dB
Over Temperature V
S
= +2.7V, –0.3V < V
CM
< 3V 64 dB
INPUT IMPEDANCE
Differential 10
13
|| 3 Ω || pF
Common-Mode 10
13
|| 6 Ω || pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain A
OL
R
L
= 100kΩ, 10mV < V
O
< (V+) –10mV 104 122 dB
Over Temperature R
L
= 100kΩ, 10mV < V
O
< (V+) –10mV 100 dB
R
L
= 5kΩ, 400mV < V
O
< (V+) –400mV 96 120 dB
Over Temperature R
L
= 5kΩ, 400mV < V
O
< (V+) –400mV 90 dB
FREQUENCY RESPONSE C
L
= 100pF
Gain-Bandwidth Product GBW 3 MHz
Slew Rate SR 2 V/µs
Settling Time, 0.1% G = 5, 2V Output Step 1.5 µs
0.01% G = 5, 2V Output Step 1.6 µs
Overload Recovery Time V
IN
• G = V
S
2.5 µs
Total Harmonic Distortion + Noise THD+N V
S
= 5.5V, V
O
= 2.5Vp-p, G = 5, f = 1kHz 0.006 %
OUTPUT
Voltage Output Swing from Rail
(1)
R
L
= 100kΩ, A
OL
≥ 96dB 1 mV
R
L
= 100kΩ, A
OL
≥ 104dB 3 10 mV
Over Temperature R
L
= 100kΩ, A
OL
≥ 100dB 10 mV
R
L
= 5kΩ, A
OL
≥ 96dB 40 400 mV
Over Temperature R
L
= 5kΩ, A
OL
≥ 90dB 400 mV
Short-Circuit Current I
SC
±15 mA
Capacitive Load Drive C
LOAD
See Typical Curve
POWER SUPPLY
Specified Voltage Range V
S
2.7 5.5 V
Operating Voltage Range 2.5 to 5.5 V
Quiescent Current (per amplifier) I
Q
V
S
= 5.5V, I
O
= 0 150 250 µA
Over Temperature 300 µA
TEMPERATURE RANGE
Specified Range –40 85 °C
Operating Range –55 125 °C
Storage Range –65 150 °C
Thermal Resistance
θ
JA
SOT23-5 Surface Mount 200 °C/W
MSOP-8 Surface Mount 150 °C/W
SO-8 Surface Mount 150 °C/W
TSSOP-14 Surface Mount 100 °C/W
SO-14 Surface Mount 100 °C/W
NOTE: (1) Output voltage swings are measured between the output and power-supply rails.