LMH6525 Datasheet, PDF (3/15 Pages) National Semiconductor (TI) – Four-hannel Laser Diode Driver with Dual Output

+5V DC Electrical Characteristics (Note 8) (Continued)
Unless otherwise specified, all limits guaranteed for T_J = 25˚C, R_L = 10Ω. Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 7) (Note 6) (Note 7)
V_THI
TTL High Voltage
Input (L to H)
ENR
2
1.27
V
ENOSC (LMH6526)
V_THI
TTL High Voltage
Input (L to H)
B-Select (LMH6525)
2
1.51
V
A-Select (LMH6526)
V_EHI
I_Spd
I_Sr1
I_Sr2
I_Swr
I_S
Enable High Voltage
Supply Current, Power Down
Supply Current, Read Mode,
Oscillator Disabled
Supply Current, Read Mode,
Oscillator Enabled
Supply Current, Write Mode
Supply Current
Enable Input (L to H)
Enable = Low
ENOSC = Low; ENOSCB = High
I2 = I3 = I4 = I_R = 125 µA
ENOSC = High; ENOSCB = Low
I2 = I3 = I4 = I_R = 125 µA
R_FA = 3.5 kΩ
EN2 = EN3 = EN4 = High;
I2 = I3 = I4 = I_R = 125 µA
All Channels disable, no input
current. SELA/B = Low
R_AA, R_AB, R_FA, R_FB = ∞
2.8
2.13
V
0.003
0.1
mA
81.5
100
mA
81.5
100
mA
180
210
mA
33
40
mA
+5V AC ELECTRICAL CHARACTERISTICS
Unless otherwise specified, all limits guaranteed for T_J = 25˚C, I_OUT = 40 mA DC and 40 mA pulse, R_L = 50Ω. Boldface limits
apply at the temperature extremes.
Symbol
Parameter
Conditions
Min
Typ
Max
(Note 7) (Note 6) (Note 7)
Units
t_r
Write Rise Time
t_f
Write Fall Time
t_r
Write Rise Time
t_f
Write Fall Time
t_r
Write Rise Time
t_f
Write Fall Time
OS
Output Current Overshoot
I_OUT = 40 mA (Read) + 40 mA
(10% to 90%) R_LOAD = 5Ω
I_OUT = 40 mA (Read) + 40 mA
(90% to 10%) R_LOAD = 5Ω
I_OUT = 100 mA (Read) + 100 mA
(10% to 90%) R_LOAD = 5Ω
I_OUT = 100 mA (Read) + 100 mA
(90% to 10%) R_LOAD = 5Ω
I_OUT = 150 mA (Read) + 150 mA
(10% to 90%) R_LOAD = 5Ω
I_OUT = 150 mA (Read) + 150 mA
(90% to 10%) R_LOAD = 5Ω
I_OUT = 40 mA (Read) + 40 mA
(Note 11)
0.6
ns
1.6
ns
0.6
ns
1.0
ns
0.6
ns
1.0
ns
18
%
IN₀
Output Current Noise
I_OUT = 40 mA; R_LOAD = 50Ω;
f = 50 MHz; ENOSC = Low
0.24
nA/
t_ON
t_OFF
t_disr
T_enr
t_dis
t_en
BW_C
F_OSC
I_OUT ON Prod. Delay
I_OUT OFF Prop. Delay
Disable Time, Read Channel
Enable Time, Read Channel
Disable Time (Shutdown)
Enable Time (Shutdown)
Channel Bandwidth, −3 dB
Oscillator Frequency
Switched on EN2 and EN2B
Switched on EN2 and EN2B
Switched on ENR
Switched on ENR
Enable = High to Low
Enable = Low to High
I_OUT = 50 mA, All Channels
R_F = 3.48 kΩ
Range 200 MHz to 600 MHz
3.1
3.3
3.5
2.8
37
4.5
250
290
360
ns
ns
as
ns
ns
µs
KHz
430
MHz
3
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