Datasheet

OPA860
SBOS331C – JUNE 2005 – REVISED AUGUST 2008 ....................................................................................................................................................... www.ti.com
ELECTRICAL CHARACTERISTICS: V
S
= ± 5V (continued)
R
L
= 500 Ω and R
ADJ
= 250 Ω , unless otherwise noted.
OPA860ID
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)
OTA OUTPUT
E-Output Voltage Compliance I
E
= ± 1mA ± 4.2 ± 3.7 ± 3.6 ± 3.6 V min A
E-Output Current, Sinking/Sourcing V
E
= 0 ± 15 ± 10 ± 9 ± 9 mA min A
C-Output Voltage Compliance I
C
= ± 1mA ± 4.7 ± 4.0 ± 3.9 ± 3.9 V min A
C-Output Current, Sinking/Sourcing V
C
= 0 ± 15 ± 10 ± 9 ± 9 mA min A
C-Output Impedance 54 || 2 k Ω || pF typ C
BUFFER (see Figure Figure 45 )
AC PERFORMANCE
Bandwidth V
O
= 200mV
PP
1200 750 720 700 MHz min B
V
O
= 1V
PP
1600 MHz typ C
V
O
= 5V
PP
1000 MHz typ C
Slew Rate V
O
= 5V Step 4000 3500 3200 3000 V/ µ s min B
Rise Time and Fall Time V
O
= 1V Step 0.4 ns typ C
Settling Time to 0.05% V
O
= 1V Step 6 ns typ C
Harmonic Distortion V
O
= 2V
PP
, 5MHz
2nd-Harmonic R
L
= 100 Ω – 52 – 47 – 46 – 44 dBc max B
R
L
≥ 500 Ω – 72 – 65 – 63 – 61 dBc max B
3rd-Harmonic R
L
= 100 Ω – 67 – 63 – 63 – 62 dBc max B
R
L
≥ 500 Ω – 96 – 86 – 85 – 83 dBc max B
Input Voltage Noise f > 100kHz 4.8 5.1 5.6 6.0 nV/ √ Hz max B
Input Current Noise f > 100kHz 2.1 2.6 2.7 2.8 pA/ √ Hz max B
Differential Gain NTSC, PAL 0.06 % typ C
Differential Phase NTSC, PAL 0.02 Degrees typ C
BUFFER DC PERFORMANCE
Gain R
L
= 500 Ω 1 0.98 0.98 0.98 V/V min A
R
L
= 500 Ω 1 1 1 1 V/V max A
Input Offset Voltage ± 16 ± 30 ± 36 ± 38 mV max A
Average Input Offset Voltage Drift ± 125 ± 125 µ V/ ° C max B
Input Bias Current ± 3 ± 7 ± 8 ± 8.5 µ A max A
Average Input Bias Current Drift ± 20 ± 20 nA/ ° C max B
BUFFER INPUT
Input Impedance 1.0 || 2.1 M Ω || pF typ C
BUFFER OUTPUT
Output Voltage Swing R
L
= 500 Ω ± 4.0 ± 3.8 ± 3.8 ± 3.8 V min A
Output Current V
O
= 0 ± 60 ± 50 ± 49 ± 48 mA min A
Closed-Loop Output Impedance f ≤ 100kHz 1.4 Ω typ C
POWER SUPPLY (OTA + BUFFER)
Specified Operating Voltage ± 5 V typ C
Maximum Operating Voltage ± 6.5 ± 6.5 ± 6.5 V max A
Minimum Operating Voltage ± 2.5 ± 2.5 ± 2.5 V min B
Maximum Quiescent Current R
ADJ
= 250 Ω 11.2 12 13.5 14.5 mA max A
Minimum Quiescent Current R
ADJ
= 250 Ω 11.2 10.5 9.5 7.9 mA min A
OTA Power-Supply Rejection Ratio
Δ I
C
/ Δ V
S
± 20 ± 50 ± 60 ± 65 µ A/V max A
(+PSRR)
Buffer Power-Supply Rejection Ratio
Δ V
O
/ Δ V
S
54 48 46 45 dB min A
( – PSRR)
THERMAL CHARACTERISTICS
Specification: ID – 40 to +85 ° C typ C
Thermal Resistance θ
JA
D SO-8 Junction-to-Ambient 125 ° C/W typ C
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