Datasheet

OPA842
www.ti.com SBOS267D –NOVEMBER 2002–REVISED SEPTEMBER 2010
ELECTRICAL CHARACTERISTICS: V
S
= ±5V
Boldface limits are tested at +25°C. At T
A
= +25°C, V
S
= ±5V, R
F
= 402Ω, R
L
= 100Ω, and G = +2, unless otherwise noted.
See Figure 37 for ac performance.
OPA842ID, IDBV
MIN/MAX OVER
TYP TEMPERATURE
0°C to -40°C to MIN/ TEST
PARAMETER TEST CONDITIONS +25°C +25°C
(2)
+70°C
(3)
+85°C
(3)
UNIT MAX LEVELS
(1)
AC Performance (see Figure 37)
Closed-Loop Bandwidth (V
O
=
G = +1, R
F
= 25Ω 350 MHz typ C
100mV
PP
)
G = [phone] MHz min B
G = [phone] MHz min B
G = [phone] MHz min B
Gain-Bandwidth Product 200 136 135 135 MHz min B
Bandwidth for 0.1dB Gain Flatness G = +2, R
L
= 100Ω, V
O
= 100mV
PP
56 MHz typ C
G = +1, R
L
= 100Ω, R
F
= 25Ω 105 MHz typ C
Harmonic Distortion G = +2, f = 5MHz, V
O
= 2V
PP
xx x second-Harmonic R
L
= 100Ω –80 –78 –77 –76 dBc max B
R
L
= 500Ω –94 –92 –91 –90 dBc max B
xx x third-Harmonic R
L
= 100Ω –97 –96 –95 –94 dBc max B
R
L
= 500Ω –93 –91 –90 –90 dBc max B
Two-Tone, Third-Order Intercept G = +2, f = 10MHz 44 dBm typ C
Input Voltage Noise f > 1MHz 2.6 2.8 3.0 3.1 nV/√Hz max B
Input Current Noise f > 1MHz 2.7 2.8 2.9 3.0 pA/√Hz max B
Rise and Fall Time 0.2V Step 2.3 3.3 3.4 3.5 ns max B
Slew Rate 2V Step 400 300 250 225 V/ms min B
Settling Time to 0.01% 2V Step 22 ns typ C
Settling Time to 0.1% 2V Step 15 19.6 20.3 21.3 ns max B
Settling Time to 1.0% 2V Step 9 10.2 11.3 12.5 ns max B
Differential Gain G = +2, NTSC, R
L
= 150Ω 0.003 % typ C
Differential Phase G = +2, NTSC, R
L
= 150Ω 0.008 degrees typ C
DC PERFORMANCE
(4)
Open-Loop Voltage Gain (A
OL
) V
O
= 0V 110 100 96 92 dB min A
Input Offset Voltage V
CM
= 0V ±0.30 ±1.2 ±1.4 ±1.5 mV max A
Average Offset Voltage Drift V
CM
= 0V ±4 ±4 mV/°C max B
Input Bias Current V
CM
= 0V –20 –35 –36 –37 mA max A
Input Bias Current Drift V
CM
= 0V 25 25 nA/°C max B
Input Offset Current V
CM
= 0V ±0.35 ±1.0 ±1.15 ±1.17 mA max A
Input Offset Current Drift V
CM
= 0V ±2 ±2 nA/°C max B
INPUT
Common-Mode Input Range
(5)
±3.2 ±3.0 ±2.9 ±2.8 V min A
(CMIR)
Common-Mode Rejection Ratio
V
CM
= ±1V, Input-Referred 95 85 84 82 dB min A
(CMRR)
Input Impedance
xx x Differential Mode V
CM
= 0V 14 || 1 kΩ || pF typ C
xx x Common-Mode V
CM
= 0V 3.1 || 1.2 MΩ || pF typ C
(1) Test levels: (A) 100% tested at +25°C. Over temperature limits by characterization and simulation. (B) Limits set by characterization and
simulation. (C) Typical value only for information.
(2) Junction temperature = ambient temperature for +25°C specifications.
(3) Junction temperature = ambient at low temperature limits; junction temperature = ambient +23°C at high temperature limit for over-
temperature min/max specifications.
(4) Current is considered positive out-of-node. V
CM
is the input common-mode voltage.
(5) Tested < 3dB below minimum specified CMRR at ±CMIR limits.
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