TSH310
400µA High-Speed Operational Amplifier
■
OptimWatt
TM
device featuring ultra-low
consumption, 2mW, and low quiescent
current, 400µA
■
Bandwidth: 120MHz (Gain=2)
■
Slew rate: 115V/µs
■
Specified on 1kΩ
■
Input noise: 7.5nV/√Hz
■
Tested on 5V power supply
Pin Connections (top view)
OUT 1
-VCC 2
+IN 3
5 +VCC
Description
The TSH310 is a very low-power, high-speed
operational amplifier. A bandwidth of 120MHz is
achieved while drawing only 400µA of quiescent
current. This low-power characteristic is
particularly suitable for high-speed, battery-
powered
equipment
requiring
dynamic
performance.
+-
The TSH310 is a single operator available in SO8
and the tiny SOT23-5 plastic package, saving
board space as well as providing excellent
thermal performances.
Applications
■
■
■
■
Battery-powered and high-speed systems
Communication & video test equipment
Portable medical instrumentation
ADC drivers
Order Codes
Part Number
TSH310ILT
TSH310ID
TSH310IDT
O
et
l
so
b
ro
P
e
uc
d
s)
t(
O
-
so
b
NC 1
-IN 2
+IN 3
te
le
_
+
SOT23-5
ro
P
4 -IN
uc
d
s)
t(
8 NC
7 +VCC
6 OUT
5 NC
SO8
-VCC 4
Temperature Range
-40°C to +85°C
Package
SOT23-5
SO-8
SO-8
Conditioning
Tape&Reel
Tube
Tape&Reel
Marking
K304
TSH310I
TSH310I
Note:
OptimWatt
TM
is an STMIcroelectronics registered trademark that applies to products with specific features that
optimize energy efficiency.
December 2004
Revision 2
1/19
TSH310
Absolute Maximum Ratings
1 Absolute Maximum Ratings
Table 1: Key parameters and their absolute maximum ratings
Symbol
V
CC
V
id
V
in
T
oper
T
stg
T
j
R
thja
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 Ambient
SOT23-5
SO8
Thermal Resistance Junction to Case
SOT23-5
SO8
Maximum Power Dissipation
4
(@Ta=25°C) for Tj=150°C
SOT23-5
SO8
HBM: Human Body Model
5
(pins 1, 4, 5, 6, 7 and 8)
HBM: Human Body Model (pins 2 and 3)
ESD
MM: Machine Model
6
(pins 1, 4, 5, 6, 7 and 8)
MM: Machine Model (pins 2 and 3)
CDM: Charged Device Model (pins 1, 4, 5, 6, 7 and 8)
CDM: Charged Device Model (pins 2 and 3)
Latch-up Immunity
Parameter
Value
6
+/-0.5
+/-2.5
-40 to +85
-65 to +150
150
250
150
80
28
Unit
V
V
V
°C
°C
°C
R
thjc
P
max
1) All voltages values are measured with respect to the ground pin.
2) Differential voltage are non-inverting input terminal with respect to the inverting input terminal.
3) The magnitude of input and output voltage must never exceed V
CC
+0.3V.
4) Short-circuits can cause excessive heating. Destructive dissipation can result from short circuit on amplifiers.
5) Human body model, 100pF discharged through a 1.5k
Ω
resistor into pMin of device.
6) This is a minimum Value. Machine model ESD, a 200pF cap is charged to the specified voltage, then discharged directly into the IC with
no external series resistor (internal resistor < 5
Ω
), into pin to pin of device.
Table 2: Operating conditions
Symbol
V
CC
V
icm
O
et
l
so
b
ro
P
e
uc
d
)-
(s
t
b
O
so
te
le
500
830
2
0.5
200
60
1.5
1.5
200
ro
P
uc
d
°C/W
s)
t(
°C/W
mW
kV
kV
V
V
kV
kV
mA
Parameter
Value
4.5 to 5.5
-Vcc+1.5V, +Vcc-1.5V
Unit
V
V
Supply Voltage
1
Common Mode Input Voltage
1) Tested in full production at 5V (±2.5V) supply voltage.
2/19
Electrical Characteristics
TSH310
2 Electrical Characteristics
Table 3: Electrical characteristics for V
CC
= ±2.5Volts, T
amb
= 25°C (unless otherwise specified)
Symbol
DC performance
V
io
Input Offset Voltage
Offset Voltage between both inputs
V
io
drift vs. Temperature
T
amb
T
min.
< T
amb
< T
max.
T
min.
< T
amb
< T
max.
1.7
2.1
4
3.1
3.5
0.1
0.3
-57
-65
-61
-59
-82
5
12
6.5
mV
Parameter
Test Condition
Min.
Typ.
Max.
Unit
∆
V
io
I
ib+
I
ib-
CMR
SVR
µ
V/°C
µ
A
µ
A
dB
dB
Non Inverting Input Bias Current
T
amb
DC current necessary to bias the input +
T
min.
< T
amb
< T
max.
Inverting Input Bias Current
T
amb
DC current necessary to bias the input -
T
min.
< T
amb
< T
max.
Common Mode Rejection Ratio
20 log
(
∆
V
ic
/
∆
V
io
)
Supply Voltage Rejection Ratio
20 log
(
∆
V
cc
/
∆
V
io
)
Power Supply Rejection Ratio
20 log
(
∆
V
cc
/
∆
V
out
)
Positive Supply Current
DC consumption with no input signal
Transimpedance
Output Voltage/Input Current Gain in
open loop of a CFA.
For a VFA, the analog of this feature is
the Open Loop Gain (A
VD
)
∆
V
ic
= ±1V
T
min.
< T
amb
< T
max.
∆
V
cc
= 3.5V to 5V
T
min.
< T
amb
< T
max.
A
V
= +1,
∆
V
cc
=±100mV
at 1kHz
T
min.
< T
amb
< T
max.
No load
PSR
I
CC
Dynamic performance and output characteristics
R
OL
Bw
O
SR
V
OH
V
OL
et
l
so
b
-3dB Bandwidth
Frequency where the gain is 3dB below
the DC gain A
V
Note:
Gain Bandwidth Product criterion is
not applicable for Current-Feedback-
Amplifiers
ro
P
e
uc
d
s)
t(
R
L
= 1k
Ω
,V
out
= ±1V
T
min.
< T
amb
< T
max.
O
-
so
b
te
le
0.6
-79
-50
46
ro
P
uc
d
s)
t(
dB
400
530
µ
A
1.45
1.36
M
Ω
M
Ω
Small Signal V
out
=20mVp-p
R
L
= 1k
Ω
A
V
= +1, R
fb
= 3k
Ω
A
V
= +2, R
fb
= 3k
Ω
A
V
= +10, R
fb
= 510
Ω
80
230
120
26
25
MHz
Gain Flatness @ 0.1dB
Small Signal V
out=
20mVp-p
Band of frequency where the gain varia- A
V
= +2, R
L
= 1k
Ω
tion does not exceed 0.1dB
Slew Rate
Maximum output speed of sweep in
large signal
V
out
= 2Vp-p, A
V
= +2,
R
L
= 1k
Ω
R
L
= 1k
Ω
T
min.
< T
amb
< T
max.
R
L
= 1k
Ω
T
min.
< T
amb
< T
max.
75
1.55
115
1.65
1.58
-1.66
-1.60
-1.55
V/
µ
s
V
V
High Level Output Voltage
Low Level Output Voltage
3/19
TSH310
Electrical Characteristics
Table 3: Electrical characteristics for V
CC
= ±2.5Volts, T
amb
= 25°C (unless otherwise specified)
Symbol
I
out
Parameter
Isink
Short-circuit Output current coming in
the op-amp.
See fig-8 for more details
Isource
Output current coming out from the op-
amp.
See fig-11 for more details
Test Condition
Output to GND
T
min.
< T
amb
< T
max.
Output to GND
T
min.
< T
amb
< T
max.
Min.
70
Typ.
110
100
Max.
Unit
60
100
85
mA
Noise and distortion
eN
Equivalent Input Noise Voltage
see application note on page 13
Equivalent Input Noise Current (+)
see application note on page 13
Equivalent Input Noise Current (-)
see application note on page 13
Spurious Free Dynamic Range
The highest harmonic of the output
spectrum when injecting a filtered sine
wave
F = 100kHz
F = 100kHz
F = 100kHz
V
out
= 2Vp-p, A
V
= +2,
R
L
= 1k
Ω
F = 1MHz
F = 10MHz
7.5
13
nV/
√
Hz
iN
SFDR
Table 4: Closed-loop gain and feedback components
V
CC
(V)
Gain
+10
-10
±2.5
O
et
l
so
b
ro
P
e
-2
+1
-1
+2
uc
d
s)
t(
3k
3k
R
fb
(Ω)
510
O
-
s
b
te
le
o
26
23
120
80
210
120
-87
-55
ro
P
6
uc
d
pA/
√
Hz
pA/
√
Hz
s)
t(
dBc
dBc
-3dB Bw
(MHz)
0.1dB Bw
(MHz)
4
4
6
10
5
60
510
1.5k
1.3k
4/19
Electrical Characteristics
Figure 1: Frequency Response, positive Gain
24
22
20
18
16
14
TSH310
Figure 4: Frequency response, negative gain
24
22
20
18
16
14
Gain=+10
Gain=-10
Gain=+4
Gain=-4
Gain (dB)
Gain=+2
Gain (dB)
12
10
8
6
4
2
0
-2
-4
-6
-8
12
10
8
6
4
2
0
-2
-4
-6
-8
Gain=-2
Gain=+1
Gain=-1
-10
1M
Small Signal
Vcc=5V
Load=1k
Ω
10M
100M
-10
1M
Small Signal
Vcc=5V
Load=1k
Ω
10M
100M
Frequency (Hz)
Frequency (Hz)
Figure 2: Gain Flatness, gain=+4
12,1
Figure 5: Gain flatness, gain=+2
6,2
6,1
12,0
6,0
5,9
Gain Flatness (dB)
Gain Flatness (dB)
11,9
5,8
5,7
5,6
5,5
5,4
5,3
5,2
5,1
5,0
1M
11,8
11,7
11,6
Gain=+4
Small Signal
Vcc=5V
Load=1k
Ω
11,5
1M
Frequency (Hz)
Figure 3: Frequency response vs. capa-load
10
O
8
6
4
et
l
so
b
Vin
+
-
ro
P
e
10M
uc
d
s)
t(
100M
O
-
so
b
te
le
ro
P
uc
d
s)
t(
Gain=+2
Small Signal
Vcc=5V
Load=1k
Ω
10M
100M
Frequency (Hz)
Figure 6: Step response vs. capa-load
3
C-Load=10pF
R-iso=0
2
C-Load=1pF, 10pF and 22pF
Gain (dB)
2
0
-2
-4
-6
-8
-10
1M
Vout
R-iso
3k
3k
C-Load
C-Load=1pF
R-iso=0
Output step (Volt)
1
Vin
+
-
C-Load=22pF
R-iso=47ohms
1k
Vout
0
3k
3k
C-Load
1k
Gain=+2, Vcc=5V,
Small Signal
Gain=+2, Vcc=5V,
Small Signal
10M
100M
-1
0,0
5,0n
10,0n
15,0n
20,0n
25,0n
30,0n
Frequency (Hz)
Time (ns)
5/19
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