Electrical characteristics TSH343
4/17
2 Electrical characteristics
Table 3. V
CC
= +5V single supply, T
amb
= 25°C (unless otherwise specified)
Symbol Parameter Test conditions Min. Typ. Max. Unit
DC performance
V
DC
Input DC shift
(see
Figure 16 for the behaviour in
temperature)
R
L
=150Ω, T
amb
400 600 670
mV
-40°C < T
amb
< +85°C 530
I
ib
Input bias current
T
amb
, input to GND 18.2 35
μA
-40°C < T
amb
< +85°C 20.7
R
in
Input resistance T
amb
4GΩ
C
in
Input capacitance T
amb
1pF
I
CC
Supply current per buffer
no load, input to GND 14.4 18
mA
-40°C < T
amb
< +85°C 14.9
PSRR
Power supply rejection ratio
(1)
20 log (ΔV
out
/ΔV
CC
)
F=1MHz -45 dB
G DC voltage gain R
L
=150Ω, V
in
= 1V 1.92 1.99 2.05 V/V
DG
Variation of the DC voltage gain
between inputs of 0.3V and 1V
Input step from 0.3V to 1V 0.26 0.8 %
MG
1
Gain matching between 3 channels Input = 1V 0.5 2 %
MG
0.3
Gain matching between 3 channels Input = 0.3V 0.5 2 %
Dynamic performance and output characteristics
Bw
-3dB bandwidth
Small signal V
out
= 20mVp
R
L
=150Ω
160 280
MHz
Gain flatness @ 0.1dB
Small signal V
out
= 20mVp
R
L
=150Ω
65
FPBW Full power bandwidth
V
out
=2V
p-p
, V
ICM
=0.5V,
R
L
=150Ω
130 200 MHz
D Delay between each channel
(2)
0 to 30MHz 0.5 ns
SR Slew rate
(3)
Input step from 0V to 1V,
R
L
=150Ω
500 780 V/μs
V
OH
High level output voltage V
in DC
= +1.5V, R
L
=150Ω 3.7 3.9 V
V
OL
Low level output voltage R
L
=150Ω 40 mV
I
OUT
Output current
V
out
=2V, T
amb
45 90
mA
-40°C < T
amb
< +85°C 82
Output short-circuit current (I
source
) 100 mA
TSH343 Electrical characteristics
5/17
Noise and distortion
eN Total input voltage noise
F = 100kHz, R
IN
=50Ω 29 nV/Hz
10kHz to 30MHz
10kHz to 100MHz
158
290
μVrms
HD2 2nd harmonic distortion
V
out
=2V
p-p
, R
L
=150Ω
F= 10MHz
F= 30MHz
-58
-45
dBc
HD3 3rd harmonic distortion
V
out
=2Vp-p, R
L
=150Ω
F= 10MHz
F= 30MHz
-72
-50
dBc
1. See Figure 28 and Figure 29.
2. See Figure 30 and Figure 31.
3. Non-tested value, guaranteed by design.
Table 3. V
CC
= +5V single supply, T
amb
= 25°C (unless otherwise specified) (continued)
Symbol Parameter Test conditions Min. Typ. Max. Unit
Electrical characteristics TSH343
6/17
Figure 1. Frequency response Figure 2. Gain flatness
1M 10M 100M 1G
-10
-8
-6
-4
-2
0
2
4
6
8
10
Vcc=5V
Load=150
Ω
Gain (dB)
Frequency (Hz)
1M 10M 100M 1G
5,70
5,75
5,80
5,85
5,90
5,95
6,00
6,05
6,10
6,15
6,20
Vcc=5V
Load=150
Ω
Gain (dB)
Frequency (Hz)
Figure 3. Cross-talk vs. frequency (amp1) Figure 4. Cross-talk vs. frequency (amp2)
1M 10M 100M
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
1/3
1/2
Small Signal
Vcc=5V
Load=150
Ω
Gain (dB)
Frequency (Hz)
1M 10M 100M
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
2/3
2/1
Small Signal
Vcc=5V
Load=150
Ω
Gain (dB)
Frequency (Hz)
Figure 5. Cross-talk vs. frequency (amp3) Figure 6. Input noise vs. frequency
1M 10M 100M
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
3/2
3/1
Small Signal
Vcc=5V
Load=150
Ω
Gain (dB)
Frequency (Hz)
NA
10 100 1k 10k 100k 1M 10M
10
100
Vcc=5V
input in short-circuit
Input Noise (nV/VHz)
Frequency (Hz)

TSH343IDT

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Video ICs 280MHz Single-Supply Triple Video Buffer
Lifecycle:
New from this manufacturer.
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