Datasheet

ELECTRICAL CHARACTERISTICS: V
S
= +3V
OPA2830
www.ti.com .................................................................................................................................................. SBOS309D – AUGUST 2004 – REVISED AUGUST 2008
Boldface limits are tested at +25C.
At T
A
= +25 ° C, G = +2V/V, and R
L
= 150 Ω to V
S
/3, unless otherwise noted (see Figure 71 ).
OPA2830ID, IDGK
MIN/MAX OVER
TYP TEMPERATURE
0 ° C to MIN/ TEST
PARAMETER CONDITIONS +25 ° C +25 ° C
(1)
+70 ° C
(2)
UNITS MAX LEVEL
(3)
AC PERFORMANCE (see Figure 71 )
Small-Signal Bandwidth G = +2, V
O
≤ 0.2V
PP
90 70 66 MHz min B
G = +5, V
O
≤ 0.2V
PP
20 15 14 MHz min B
G = +10, V
O
≤ 0.2V
PP
9 7.5 6.5 MHz min B
Gain-Bandwidth Product G ≥ [phone] MHz min B
Slew Rate 1V Step 220 135 105 V/ µ s min B
Rise Time 0.5V Step 3.4 5.6 5.7 ns max B
Fall Time 0.5V Step 3.4 5.6 5.7 ns max B
Settling Time to 0.1% 1V Step 46 73 88 ns max B
Harmonic Distortion V
O
= 1V
PP
, f = 5MHz
2nd-Harmonic R
L
= 150 Ω – 60 – 56 – 54 dBc min B
R
L
≥ 500 Ω – 64 – 59 – 57 dBc min B
3rd-Harmonic R
L
= 150 Ω – 68 – 59 – 58 dBc min B
R
L
≥ 500 Ω – 72 – 65 – 64 dBc min B
Input Voltage Noise f > 1MHz 9.2 10.3 10.8 nV/ √ Hz max B
Input Current Noise f > 1MHz 3.5 4.6 5.1 pA/ √ Hz max B
DC PERFORMANCE
(4)
Open-Loop Voltage Gain 72 66 65 dB min A
Input Offset Voltage ± 1.5 ± 7.5 ± 8.7 mV max A
Average Offset Voltage Drift — ± 27 µ V/ ° C max B
Input Bias Current V
CM
= 1.0V +5 +10 +12 µ A max A
Input Bias Current Drift ± 44 nA/ ° C max B
Input Offset Current V
CM
= 1.0V ± 0.2 ± 1.1 ± 1.3 µ A max A
Input Offset Current Drift — ± 5 nA/ ° C max B
INPUT
Least Positive Input Voltage – 0.45 – 0.4 – 0.27 V max A
Most Positive Input Voltage 1.2 1.1 1.0 V min A
Common-Mode Rejection Ratio (CMRR) Input-Referred 80 74 72 dB min A
Input Impedance
Differential Mode 10 || 2.1 k Ω || pF typ C
Common-Mode 400 || 1.2 k Ω || pF typ C
OUTPUT
Least Positive Output Voltage G = +5, R
L
= 1k Ω to 1.5V 0.08 0.11 0.125 V max A
G = +5, R
L
= 150 Ω to 1.5V 0.17 0.39 0.40 V max A
Most Positive Output Voltage G = +5, R
L
= 1k Ω to 1.5V 2.91 2.88 2.85 V min A
G = +5, R
L
= 150 Ω to 1.5V 2.82 2.74 2.70 V min A
Current Output, Sinking and Sourcing ± 30 ± 20 ± 18 mA min A
Short-Circuit Output Current Output Shorted to Either Supply 45 mA typ C
Closed-Loop Output Impedance See Figure 71 , f < 100kHz 0.06 Ω typ C
(1) Junction temperature = ambient for +25 ° C specifications.
(2) Junction temperature = ambient at low temperature limits; junction temperature = ambient +20 ° C at high temperature limit for over
temperature specifications.
(3) 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.
(4) Current is considered positive out of node.
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