TSH341
300MHz Single Supply Video Amplifier with Low In/Out Rail
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Bandwidth: 300MHz
Single supply operation down to 3V
Low input & output rail
Very low harmonic distortion
Slew rate: 400V/µs
Voltage Input noise: 7nV/√Hz
Specified for 150Ω load and 100Ω load
Tested on 5V power supply
Data min. and max. are tested during
production (Table
3)
Pin Connections (top view)
OUT 1
-VCC 2
+IN 3
SOT23-5
5 +VCC
+-
4 -IN
Description
The TSH341 is a single supply operational
amplifier featuring a large bandwidth of 300MHz
at unity gain for only 9.8mA of quiescent current.
An
advantage
of this circuit is its low input and
output rail feature which is very close to GND in
single supply. This rail is tested and guaranteed
during production at 60mV (max.) from GND on a
150
Ω
load. This allows a good output swing which
fits perfectly when driving a video signal on a 75Ω
video line.
Chapter 5
gives technical support
when using the TSH341 as a driver for video DAC
output on a video line. In particular, this chapter
focuses on applying a video signal DC shift to
avoid any clamping of the synchronization tip.
The TSH341 is available in the tiny SOT23-5 and
SO8 plastic packages.
NC 1
-IN 2
+IN 3
-VCC 4
SO8
_
+
8 NC
7 +VCC
6 OUT
5 NC
Applications
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High-end video systems
High Definition TV (HDTV)
Broadcast video
Multimedia products
Order Codes
Part Number
TSH341ILT
TSH341ID
TSH341IDT
Temperature Range
-40°C to +85°C
Package
SOT23-5
SO-8
Packaging
Tape & Reel
Tube
Tape & Reel
Marking
K307
H341I
H341I
March 2005
Revision 2
1/13
TSH341
Absolute Maximum Ratings
1 Absolute Maximum Ratings
Table 1. Key parameters and their absolute maximum ratings
Symbol
V
CC
Vid
V
in
T
oper
T
std
T
j
R
thjc
Supply voltage
1
Differential Input Voltage
2
Input Voltage Range
3
Operating Free Air Temperature Range
Storage Temperature
Maximum Junction Temperature
Thermal Resistance Junction to Case
SOT23-5
SO8
Thermal Resistance Junction to Ambient Area
SOT23-5
SO8
Maximum Power Dissipation (@Ta=25°C) for Tj=150°C
SOT23-5
SO8
CDM: Charged Device Model
HBM: Human Body Model
MM: Machine Model
Output Short Circuit
1)
2)
3)
4)
All voltage values, except differential voltage are with respect to network terminal.
Differential voltage are non-inverting input terminal with respect to the inverting input terminal.
The magnitude of input and output voltage must never exceed V
CC
+0.3V.
An output current limitation protects the circuit from transient currents. Short-circuits can cause excessive heating.
Destructive dissipation can result from short circuit on amplifiers.
Parameter
Value
6
+/-0.5
-0.2 to +3
-40 to +85
-65 to +150
150
80
28
250
175
500
715
2
1.5
200
4
Unit
V
V
V
°C
°C
°C
°C/W
R
thja
°C/W
P
max.
mW
kV
kV
V
ESD
Table 2. Operating conditions
Symbol
V
CC
Vicm
1)
Parameter
Power Supply Voltage
Common Mode Input Voltage
Value
3 to 5.5
1
-0.4 to 3
Unit
V
V
Tested in full production at 0V/5V single power supply
2/13
Electrical Characteristics
TSH341
2 Electrical Characteristics
Table 3. V
CC
= +5V, T
amb
= 25°C
(unless otherwise specified)
Symbol
DC Performance
V
io
∆V
io
I
ib
A
VD
CMR
SVR
PSR
R
IN
C
IN
I
CC
Input Offset Voltage
V
io
drift vs. Temperature
Input Bias Current
Open Loop Gain
Common Mode Rejection Ratio
20 log (∆V
icm
/∆V
io
)
Supply Voltage Rejection Ratio
20 log (∆V
cc
/∆V
io
)
Power Supply Rejection Ratio
20 log (∆V
cc
/∆V
out
)
Input Resistance
Input Capacitance
Total Supply Current
No Load, V
icm
=0.6V
T
amb
, V
icm
=0.6V
-40°C < T
amb
< +85°C
-40°C < T
amb
< +85°C
T
amb
, V
icm
=0.6V
-40°C < T
amb
< +85°C
∆V
OUT
=2V, R
L
=150Ω
∆V
icm
= 2V
-40°C < T
amb
< +85°C
∆V
cc
=4V to 5V, V
icm
=0.6V
-40°C < T
amb
< +85°C
∆V
cc
=200mVp-p, F=1MHz
-60
70
-60
-15
-3
-5
-30
6
7.2
100
-85
-83
-85
-84
-77
8.2
3.5
9.8
12.7
16
15
mV
µV/°C
µA
dB
dB
dB
dB
MΩ
pF
mA
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Dynamic Performance and Output Characteristics
-3dB Bandwidth
Small Signal V
OUT
=20mVp
V
icm
=0.6V, R
L
=150Ω
Gain=+1
Gain=+2
Small Signal V
OUT
=20mVp
Gain=+2, V
icm
=0.6V,
R
L
=150Ω
V
icm
=2V, V
OUT
= 2Vp-p,
Gain=1, R
L
= 150Ω
V
OUT
=2Vp-p, R
L
=150Ω,
Gain=+2,
R
L
= 150Ω
R
L
= 150Ω
T
amb
-40°C < T
amb
< +85°C
70
3.7
70
Bw
Gain Flatness @ 0.1dB
90
300
150
65
MHz
FPBW
SR
V
OH
V
OL
I
OUT
Full Power Bandwidth
Slew Rate
High Level Output Voltage
Low Level Output Voltage
Output Short Circuit Current
100
400
3.9
40
100
90
60
MHz
V/µs
V
mV
mA
Noise and Distortion
eN
iN
HD2
HD3
Equivalent Input Noise Voltage
Equivalent Input Noise Current (+)
2nd Harmonic Distortion
3rd Harmonic Distortion
F = 100kHz
F = 100kHz
V
OUT
= 2Vp-p, R
L
= 150Ω
Gain=+2, F= 10MHz,
V
OUT
= 2Vp-p, R
L
= 150Ω
Gain=+2, F= 10MHz,
7
1.5
-57
-63
nV/√Hz
pA/√Hz
dBc
dBc
3/13
TSH341
Figure 1. Frequency response
16
14
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
-12
-14
-16
1M
Electrical Characteristics
Figure 4. Frequency response on capa-load
20
Gain=+4
Frequency Response (dB)
C=47pF
Riso=10
Ω
10
C=10pF
Riso=0
Gain (dB)
Gain=+2
0
Gain=+1
C=22pF
Riso=10
Ω
-10
Vcc=5V
Load=100
Ω
or 150
Ω
SO8 and SOT23-5
10M
100M
Vcc=5V
Gain=+2
Load=Riso + C//1k
Ω
(to ground)
-20
1M
10M
C=0 or
10pF
Riso=0
100M
Frequency (Hz)
Frequency (Hz)
Figure 2. Gain flatness - SOT23-5L
Figure 5. Gain flatness - SO8
6,4
6,2
6,0
5,8
6,4
Load=150
Ω
6,2
6,0
5,8
Load=150
Ω
Gain (dB)
Gain (dB)
5,6
5,4
5,2
5,0
4,8
4,6
1M
5,6
5,4
5,2
5,0
Load=100
Ω
Load=100
Ω
Vcc=5V
Gain=+2
10M
100M
4,8
4,6
1M
Vcc=5V
10M
100M
Frequency (Hz)
Frequency (Hz)
Figure 3. Total input noise vs. frequency
Figure 6. Positive and negative slew rate
3,0
non-inverting input in short-circuit
Vcc=5V
2,5
Vcc=5V
G=+2
Load=100
Ω
or 150
Ω
Input Noise (nV/VHz)
100
Output Response (V)
SR+
2,0
1,5
SR-
1,0
0,5
10
100
1k
10k
100k
1M
10M
0,0
-5ns
-4ns
-3ns
-2ns
-1ns
0s
1ns
2ns
3ns
4ns
5ns
Frequency (Hz)
Time
4/13
Electrical Characteristics
Figure 7. Distortion on 100Ω load
-20
-25
-30
-35
HD3
(30MHz)
HD2
(30MHz)
TSH341
Figure 10. Distortion on 150Ω load
-10
-15
-20
-25
HD2
(30MHz)
HD2 & HD3 (dBc)
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
0
1
2
3
4
HD3
(10MHz)
HD2
(10MHz)
HD2 & HD3 (dBc)
-40
-30
-35
-40
-45
-50
-55
-60
-65
HD3
(30MHz)
HD3
(10MHz)
Vcc=5V
Load=100
Ω
-70
-75
-80
0
1
2
HD2
(10MHz)
3
Vcc=5V
Load=150
Ω
4
Output Amplitude (Vp-p)
Output Amplitude (Vp-p)
Figure 8. Output lower rail vs. frequency
500
Figure 11. Output voltage swing vs. Vcc
5
Vcc=5V
Load=100
Ω
or 150
Ω
400
4
V
OL
(mV)
300
Vout max (Vp-p)
100k
1M
10M
100M
3
200
2
100
1
F=30MHz
Load=100
Ω
or 150
Ω
0
10k
0
3,00
3,25
3,50
3,75
4,00
4,25
4,50
4,75
5,00
Frequency (Hz)
Vcc (V)
Figure 9. Output voltage swing vs. frequency
5
Figure 12. Quiescent current vs. Vcc
20
no load
4
15
Vout max. (Vp-p)
Icc (mA)
Vcc=5V
Gain=+2
Load=100
Ω
or Load=150
Ω
10M
3
10
2
5
1
0
1M
0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
Frequency (Hz)
Vcc (V)
5/13
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