Datasheet

Data Sheet AD8276/AD8277
Rev. C | Page 3 of 20
SPECIFICATIONS
V
S
= ±5 V to ±15 V, V
REF
= 0 V, T
A
= 25°C, R
L
= 10 kΩ connected to ground, G = 1 difference amplifier configuration, unless
otherwise noted.
Table 2.
G = 1
Grade B
Grade A
Parameter Conditions Min Typ Max Min Typ Max Unit
INPUT CHARACTERISTICS
System Offset
1
100 200 100 500 µV
vs. Temperature T
A
= −40°C to +85°C 200 500 µV
Average Temperature
Coefficient
T
A
= −40°C to +85°C 0.5 2 2 5 µV/°C
vs. Power Supply
V
S
= ±5 V to ±18 V
5
10
µV/V
Common-Mode Rejection
Ratio (RTI)
V
S
= ±15 V, V
CM
= ±27 V,
R
S
= 0 Ω 86 80 dB
Input Voltage Range
2
−2(V
S
+ 0.1) +2(V
S
− 1.5) −2(V
S
+ 0.1) +2(V
S
− 1.5) V
Impedance
3
Differential
80
80
kΩ
Common Mode 40 40 kΩ
DYNAMIC PERFORMANCE
Bandwidth
550
550
kHz
Slew Rate 0.9 1.1 0.9 1.1 V/µs
Settling Time to 0.01%
10 V step on output,
C
L
= 100 pF 15 15 µs
Settling Time to 0.001% 16 16 µs
Channel Separation f = 1 kHz 130 130 dB
GAIN
Gain Error 0.005 0.02 0.01 0.05 %
Gain Drift T
A
= −40°C to +85°C 1 5 ppm/°C
Gain Nonlinearity V
OUT
= 20 V p-p 5 10 ppm
OUTPUT CHARACTERISTICS
Output Voltage Swing
4
V
S
= ±15 V, R
L
= 10 kΩ,
T
A
= −40°C to +85°C −V
S
+ 0.2 +V
S
− 0.2 −V
S
+ 0.2 +V
S
− 0.2 V
Short-Circuit Current Limit ±15 ±15 mA
Capacitive Load Drive 200 200 pF
NOISE
5
Output Voltage Noise f = 0.1 Hz to 10 Hz 2 2 μV p-p
f = 1 kHz 65 70 65 70 nV/√Hz
POWER SUPPLY
Supply Current
6
200 200 μA
vs. Temperature T
A
= −40°C to +85°C 250 250 μA
Operating Voltage Range
7
±2 ±18 ±2 ±18 V
TEMPERATURE RANGE
Operating Range −40 +125 −40 +125 °C
1
Includes input bias and offset current errors, RTO (referred to output).
2
The input voltage range may also be limited by absolute maximum input voltage or by the output swing. See the Input Voltage Range section in the Theory of
Operation section for details.
3
Internal resistors are trimmed to be ratio matched and have ±20% absolute accuracy.
4
Output voltage swing varies with supply voltage and temperature. See Figure 18 through Figure 21 for details.
5
Includes amplifier voltage and current noise, as well as noise from internal resistors.
6
Supply current varies with supply voltage and temperature. See Figure 22 and Figure 24 for details.
7
Unbalanced dual supplies can be used, such as −V
S
= −0.5 V and +V
S
= +2 V. The positive supply rail must be at least 2 V above the negative supply and reference
voltage.