January 2005
Revision 1
1/7
Gain flatness of 220MHz
Bandwidth: 300MHz
Single supply operation down to 3V
Tested on 5V power supply
Negative input & output rail
Very low harmonic distortion
Slew rate: 780V/s typ., 540V/s min.
Input noise: 3nV/Hz
Specified for 150 load
Internal gain of 6dB
Description
The TSH340 is a video buffer featuring a gain of
6dB. A large bandwidth of 300MHz for only 9.4mA
of quiescent current allows the TSH340 to achieve
a gain flatness of 220MHz. Its structure features a
very high slew rate of 540V/
s minimum
guaranteed by test. Associated to a very good
THD these characteristics are particularly
intended in the high quality video systems.
The TSH340 is available in tiny SOT23-5 and SO8
plastic packages for size saving consideration.
Pin Connections (top view)
Applications
High end video systems
High definition TV (HDTV)
Broadcast and graphic video
Multimedia products
Order Codes
1
2
3
5
4
-VCC
+VCC
OUT
NC
IN
SOT23-5
+VCC
1
2
3
5
4
8
7
6
NC
OUT
-VCC
NC
NC
IN
SO8
NC
1
2
3
5
4
-VCC
+VCC
OUT
NC
IN
SOT23-5
+VCC
1
2
3
5
4
8
7
6
NC
OUT
-VCC
NC
NC
IN
SO8
NC
Part Number
Temperature Range
Package
Packaging
Marking
TSH340ILT
-40C to +85C
SOT23-5
Tape & Reel
K306
TSH340ID
SO-8
Tube
TSH350I
TSH340IDT
Tape & Reel
TSH350I
TSH340
300-MHz Single Supply Video Buffer Negative In/Out Rail
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
PRELIMINARY DATA
TSH340
Absolute Maximum Ratings
2/7
1 Absolute Maximum Ratings
Table 1.
Key parameters and their absolute maximum ratings
Symbol
Parameter
Value
Unit
V
CC
Supply voltage
1
1)
All voltage values, except differential voltage are with respect to network terminal.
6
V
V
in
Input Voltage Range
2
2)
The magnitude of input and output voltage must never exceed V
CC
+0.3V.
TBD
V
T
oper
Operating Free Air Temperature Range
-40 to +85
C
T
std
Storage Temperature
-65 to +150
C
T
j
Maximum Junction Temperature
150
C
R
thjc
Thermal Resistance Junction to Case
SOT23-5
SO8
80
75
C/W
R
thja
Thermal Resistance Junction to Ambient Area
SOT23-5
SO8
250
175
C/W
P
max.
Maximum Power Dissipation (@Ta=25C) for Tj=150C
SOT23-5
SO8
500
715
mW
ESD
CDM: Charged Device Model
HBM: Human Body Model
MM: Machine Model
TBD
TBD
TBD
kV
kV
V
Output Short Circuit
3
3)
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.
Table 2.
Operating Conditions
Symbol
Parameter
Value
Unit
V
CC
Power Supply Voltage
3 to 5.5
1
1)
Tested in full production at 0V/5V single power supply
V
Vicm
Common Mode Input Voltage
-0.4 to 3
V
Electrical Characteristics
TSH340
3/7
2 Electrical
Characteristics
Table 3.
V
CC
= +5V, T
amb
= 25C (unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
DC PERFORMANCE
V
OS
Output Offset Voltage
1
1)
Output Offset Voltage is determined from the following expression:
V
OUT
=G.
V
IN
+
V
OS
no Load, T
amb
1.8
TBD
mV
-40C < T
amb
< +85C
TBD
I
ib
Input Bias Current
T
amb
, V
icm
=0.6V
-6
-16
A
-40C < T
amb
< +85C
-32
PSR
Power Supply Rejection Ratio
20 log (
V
cc
/
V
out
)
V
cc
=200mVp-p, F=1MHz
-90
dB
-40C < T
amb
< +85C
TBD
I
CC
Total Supply Current
no Load, V
IN
=100mV
9.4
TBD
mA
G
DC Voltage Gain
R
L
= 150
TBD
2
TBD
V/V
Rin
Input Resistance
T
amb
TBD
W
Cin
Input Capacitance
T
amb
TBD
pF
DYNAMIC PERFORMANCE and OUTPUT CHARACTERISTIC
Bw
-3dB Bandwidth
Small Signal V
out
=20mVp
V
icm
=0.6V, R
L
= 150
180
300
MHz
Gain Flatness @ 0.1dB
Small Signal V
out
=20mVp
V
icm
=0.6V, R
L
= 150
63
FPBW
Full Power Bandwidth
V
icm
=0.6V, V
OUT
= 2Vp-p,
R
L
= 150
TBD
220
MHz
SR
Slew Rate
Vicm=0.6V, V
OUT
= 2Vp-p,
R
L
= 150
780
V/
s
V
OH
High Level Output Voltage
R
L
= 150
3.8
3.87
V
V
OL
Low Level Output Voltage
R
L
= 150
45
52
mV
I
OUT
Output Short Circuit Current (Isource)
T
amb
50
95
mA
-40C < T
amb
< +85C
42
G
Differential Gain
R
L
= 150
TBD
%
DF
Differential Phase
R
L
= 150
TBD
NOISE AND DISTORTION
eN
Equivalent Input Noise Voltage
F = 100kHz
7
nV/
Hz
iN
Equivalent Input Noise Current
F = 100kHz
TBD
pA/
Hz
HD2
2nd Harmonic Distortion
V
OUT
= 2Vp-p, R
L
= 150
F= 10MHz,
-88
dBc
HD3
3rd Harmonic Distortion
V
OUT
= 1Vp-p, R
L
= 150
F= 10MHz,
-72
dBc
TSH340
Application Schematic
4/7
3 Application
Schematic
Figure 1. High-end video driver
+5V
+
-
75
75 Cable
1.8V
0.1V
0.9V
50mV
Speed :
- Screen 1280*1024*(85Hz) = 112MHz
- Between 2 pixels : 1.8V/3ns
Amplifier:
- Gain Flatness 0.1dB = 110MHz
- SR=600V/s minimum
9ns
3ns
1.8V
0.1V
black
White
IN
OUT
2
4
5
3
Rfb
Rg
75
+5V
+
-
75
75 Cable
1.8V
0.1V
0.9V
50mV
Speed :
- Screen 1280*1024*(85Hz) = 112MHz
- Between 2 pixels : 1.8V/3ns
Amplifier:
- Gain Flatness 0.1dB = 110MHz
- SR=600V/s minimum
9ns
3ns
1.8V
0.1V
black
White
IN
OUT
2
4
5
3
Rfb
Rg
75
Package Mechanical Data
TSH340
5/7
4 Package
Mechanical
Data
4.1 SO-8 Package
DIM.
mm.
inch
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
1.35
1.75
0.053
0.069
A1
0.10
0.25
0.04
0.010
A2
1.10
1.65
0.043
0.065
B
0.33
0.51
0.013
0.020
C
0.19
0.25
0.007
0.010
D
4.80
5.00
0.189
0.197
E
3.80
4.00
0.150
0.157
e
1.27
0.050
H
5.80
6.20
0.228
0.244
h
0.25
0.50
0.010
0.020
L
0.40
1.27
0.016
0.050
k
(max.)
ddd
0.1
0.04
SO-8 MECHANICAL DATA
0016023/C
8
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