Datasheet

OPA827
www.ti.com SBOS376H –NOVEMBER 2006–REVISED MAY 2012
ELECTRICAL CHARACTERISTICS: V
S
= ±4V to ±18V
Boldface limits apply over the specified temperature range, T
A
= –40°C to +125°C.
At T
A
= +25°C, R
L
= 10kΩ connected to midsupply, V
CM
= V
OUT
= midsupply, unless otherwise noted.
OPA827AI
PARAMETER CONDITIONS MIN TYP MAX UNIT
OFFSET VOLTAGE
Input Offset Voltage V
OS
V
S
= ±15V, V
CM
= 0V 75 150 μV
Drift dV
OS
/dT 0.1 2.0 μV/°C
vs Power Supply PSRR 0.2 1 μV/V
Over Temperature 3 μV/V
INPUT BIAS CURRENT
Input Bias Current I
B
±3 ±10 pA
–40°C to +85°C ±500 pA
Over Temperature –40°C to +125°C ±5 nA
Input Offset Current I
OS
±3 ±10 pA
NOISE
Input Voltage Noise:
f = 0.1Hz to 10Hz e
n
V
S
= ±18V, V
CM
= 0V 250 nV
PP
Input Voltage Noise Density:
f = 1kHz e
n
V
S
= ±18V, V
CM
= 0V 4 nV/√Hz
f = 10kHz e
n
V
S
= ±18V, V
CM
= 0V 3.8 nV/√Hz
Input Current Noise Density:
f = 1kHz i
n
V
S
= ±18V, V
CM
= 0V 2.2 fA/√Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range V
CM
(V–)+3 (V+)–3 V
Common-Mode Rejection Ratio CMRR (V−)+3V ≤ V
CM
≤ (V+)−3V, V
S
< 10V 104 114 dB
(V−)+3V ≤ V
CM
≤ (V+)−3V, V
S
≥ 10V 114 126 dB
Over Temperature (V−)+3V ≤ V
CM
≤ (V+)−3V, V
S
< 10V 100 dB
(V−)+3V ≤ V
CM
≤ (V+)−3V, V
S
≥ 10V 110 dB
INPUT IMPEDANCE
Differential Ω ∥ pF
10
13
∥ 9
Common-Mode Ω ∥ pF
10
13
∥ 9
OPEN-LOOP GAIN
Open-Loop Voltage Gain A
OL
(V–)+3V ≤ V
O
≤ (V+)–3V, R
L
= 1kΩ 120 126 dB
Over Temperature (V–)+3V ≤ V
O
≤ (V+)–3V, R
L
= 1kΩ 114 dB
FREQUENCY RESPONSE
Gain-Bandwidth Product GBW G = +1 22 MHz
Slew Rate SR G = –1 20 28 V/μs
Settling Time, ±0.01% t
S
10V Step, G = –1, C
L
= 100pF 550 ns
0.00075% (16-bit) 10V Step, G = –1, C
L
= 100pF 850 ns
Overload Recovery Time Gain = –10 150 ns
Total Harmonic Distortion + Noise THD+N G = +1, f = 1kHz 0.00004 %
V
O
= 3V
RMS
, R
L
= 600Ω –128 dB
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