Datasheet

OPA2890
www.ti.com SBOS364C –DECEMBER 2007–REVISED DECEMBER 2009
ELECTRICAL CHARACTERISTICS: V
S
= ±5V
At T
A
= +25°C, R
F
= 0Ω, G = +1V/V, and R
L
= 200Ω, unless otherwise noted.
OPA2890ID, IDGS
TYP MIN/MAX OVER TEMPERATURE
0°C to –40°C to MIN/ TEST
PARAMETER CONDITIONS +25°C +25°C
(2)
+70°C
(3)
+85°C
(3)
UNITS MAX LEVEL
(1)
AC PERFORMANCE
Small-signal bandwidth G = +1V/V, V
O
= 100mV
PP
, R
F
= 0Ω 250 MHz typ C
G = +2V/V, V
O
= 100mV
PP
100 60 50 45 MHz min B
G = +10V/V, V
O
= 100mV
PP
12 8 7 6.5 MHz min B
Gain bandwidth product G > +20V/V 120 90 80 78 MHz min B
Bandwidth for 0.1dB flatness G = +2V/V, V
O
= 100mV
PP
15 MHz typ C
Peaking at a gain of +1V/V V
O
< 100mV
PP
0.2 dB typ C
Large-signal bandwidth G = +2V/V, V
O
= 2V
PP
110 MHz typ C
Slew rate G = +2V/V, V
O
= 2V step 400 300 275 270 V/μs min B
Rise-and-fall time 0.2V step 3.5 ns typ C
Settling time to 0.02% G = +1V/V, V
O
= 2V step 16 ns typ C
Settling time to 0.1% 10 ns typ C
Harmonic distortion G = +2V/V, f = 1MHz, V
O
= 2V
PP
2nd harmonic R
L
= 200Ω 84 73 69 68 dBc max B
R
L
≥ 500Ω 100 83 81 80 dBc max B
3rd harmonic R
L
= 200Ω 89 84 81 80 dBc max B
R
L
≥ 500Ω 94 90 87 86 dBc max B
Input voltage noise f > 100kHz 8 9 10 11 nV/√Hz max B
Input current noise f > 100kHz 1 1.3 1.7 1.9 pA/√Hz max B
Differential gain G = +2V/V, V
O
= 1.4V
PP
, R
L
= 150Ω 0.05 % typ C
Differential phase G = +2V/V, V
O
= 1.4V
PP
, R
L
= 150Ω 0.03 ° typ C
Channel-to-channel crosstalk f = 5MHz, Input-referred –68 dB typ C
DC PERFORMANCE
(4)
Open-loop voltage gain (A
OL
) V
O
= 0V, R
L
= 100Ω 62 57 56 54 dB min A
Input offset voltage V
CM
= 0V ±2 ±5 ±6.6 ±7.1 mV max A
Average offset voltage drift V
CM
= 0V ±35 ±35 μV/°C max B
Input bias current V
CM
= 0V ±0.1 ±1.6 ±1.8 ±2 μA max A
Average input bias current drift V
CM
= 0V ±5 ±6 nA/°C max B
Input offset current V
CM
= 0V ±70 ±350 ±450 ±500 nA max A
Average input offset current drift V
CM
= 0V ±2.5 ±2.5 nA/°C max B
INPUT
Common-mode input range (CMIR)
(5)
±3.9 ±3.7 ±3.6 ±3.5 V min A
Common-mode rejection ratio (CMRR) V
CM
= 0V, Input-referred 66 60 57 56 dB min A
Input impedance
Differential V
CM
= 0V 190 || 0.6 kΩ || pF typ C
Common-mode V
CM
= 0V 3.2 || 0.9 MΩ || pF typ C
OUTPUT
Output voltage swing No load ±4.0 ±3.9 ±3.8 ±3.7 V min A
R
L
= 100Ω ±3.6 ±3.1 ±3.05 ±2.9 V min A
Output current, sourcing, sinking V
O
= 0V ±40 ±35 ±33 ±30 mA min A
Peak output current Output shorted to ground ±75 mA typ C
Closed-loop output impedance G = +2V/V, f = 100kHz 0.04 Ω typ C
(1) Test levels: (A) 100% tested at +25°C. Over temperature limits set by characterization and simulation. (B) Limits set by characterization
and simulation. (C) Typical value only for information.
(2) Junction temperature = ambient for +25°C tested specifications.
(3) Junction temperature = ambient at low temperature limit; junction temperature = ambient +4°C at high temperature limit for over
temperature 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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