Datasheet

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ELECTRICAL CHARACTERISTICS: V
S
= +4V to +12V or V
S
= ± 2V to ± 6V
OPA727 , , OPA2727
OPA4727 , OPA728
SBOS314H – SEPTEMBER 2004 – REVISED APRIL 2007
Boldface limits apply over the specified temperature range, T
A
= –40 ° C to +125 ° C.
At T
A
= +25 ° C, R
L
= 10k Ω connected to V
S
/2, and V
OUT
= V
S
/2, unless otherwise noted.
OPA727, OPA728,
OPA2727, OPA4727
PARAMETER CONDITIONS MIN TYP MAX UNIT
OFFSET VOLTAGE
Input Offset Voltage V
OS
V
S
= ± 5V, V
CM
= 0V
OPA727 DFN, OPA728 DFN Packages 15 150 µ V
OPA727 MSOP, OPA728 MSOP Packages 15 300 µ V
OPA2727 15 150 µ V
OPA4727 15 175 µ V
Drift dV
OS
/dT 0 ° C to +85 ° C 0.3 1.5 µ V/ ° C
–40 ° C to +125 ° C 0.6 3 µ V/ ° C
vs Power Supply PSRR V
S
= ± 2V to ± 6V, V
CM
= V– 30 150 µ V/V
Over Temperature V
S
= ± 2V to ± 6V, V
CM
= V– 150 µ V/V
Channel Separation, dc 1 µ V/V
INPUT BIAS CURRENT
Input Bias Current ± 85 ± 500 pA
Over Temperature See Typical Characteristics
Input Ofset Current I
OS
± 10 ± 100 pA
NOISE
Input Voltage Noise, f = 0.1Hz to 10Hz e
n
V
S
= ± 6V, V
CM
= 0V 10 µ V
PP
Input Voltage Noise Density, f = 10kHz e
n
V
S
= ± 6V, V
CM
= 0V 10 nV/ √ Hz
Input Voltage Noise Density, f = 100kHz e
n
V
S
= ± 6V, V
CM
= 0V 6 nV/ √ Hz
Input Current Noise Density, f = 1kHz i
n
V
S
= ± 6V, V
CM
= 0V 2.5 fA/ √ Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range V
CM
(V–) (V+)–2.5 V
Common-Mode Rejection Ratio CMRR (V–) ≤ V
CM
≤ (V+) – 2.5V 86 94 dB
Over Temperature (V–) ≤ V
CM
≤ (V+) – 2.5V 84 dB
(V–) ≤ V
CM
≤ (V+) – 3V 94 100 dB
Over Temperature (V–) ≤ V
CM
≤ (V+) – 3V 84 dB
INPUT IMPEDANCE
Differential Ω || pF
10
11
|| 5
Common-Mode Ω || pF
10
11
|| 4
OPEN-LOOP GAIN
R
L
= 100k Ω , 0.15V < V
O
< (V+)
Open-Loop Voltage Gain A
OL
110 120 dB
–0.15V
R
L
= 100k Ω , 0.15V < V
O
< (V+)
Over Temperature 100 dB
–0.15V
R
L
= 1k Ω , 0.25V < V
O
< (V+) –0.25V 106 116 dB
Over Temperature, OPA727, OPA728 R
L
= 1k Ω , 0.25V < V
O
< (V+) –0.25V 96 dB
Over Temperature, OPA2727, OPA4727 R
L
= 1k Ω , 0.35V < V
O
< (V+) –0.35V 96 dB
FREQUENCY RESPONSE C
L
= 20 pF
Gain-Bandwidth Product GBW 20 MHz
Slew Rate SR G = +1 30 V/ µ s
Settling Time, 0.1% t
s
V
S
= ± 6V, 5V Step, G = +1 350 ns
Settling Time, 0.01% V
S
= ±6V, 5V Step, G = +1 450 ns
Overload Recovery Time V
IN
× Gain > V
S
50 ns
Total Harmonic Distortion + Noise THD+N V
S
= ± 6V, V
OUT
= 2V
RMS
, R
L
= 600 Ω , 0.003 %
G = +1, f = 1kHz
4
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