ST TSH94 User Manual
High speed low power quad operational amplifier
Features
■ Two separate standby functions: low
consumption and high impedance outputs
■ Low supply current: 4.5 mA
■ High speed: 150 MHz - 110 V/µs
■ Unity gain stability
■ Low offset voltage: 3 mV
■ Low noise 4.2 nV/√Hz
■ Low cost
■ Specified for 600 Ω and 150 Ω loads
■ High video performance:
– Differential gain: 0.03%
– Differential phase: 0.07°
– Gain flatness: 6 MHz, 0.1 dB max at 10 dB
gain
■ High audio performance
Applications
■ Set-top-boxes
■ TV
■ DVD players
Output 1
Inverting Input 1
Non-inverting Input 1
V
CC
Non-inverting Input 2
Inverting Input 2
Output 2
Standby 1
TSH94
with standby position
D
SO-16
(Plastic micropackage)
Pin connections
(top view)
1
2
-
+
3
+
4
5
+
-
6
7
8
16
15
-
+
14
13
12
+
11
10
Output 4
Inverting Input 4
Non-inverting Input 4
-
V
CC
Non-inverting Input 3
Inverting Input 3
Output 3
Standby 2
9
Description
The TSH94 is a quad low-power high-frequency
operation amplifier, designed for high-quality
These functions reduce the consumption of the
corresponding operator and put the output in a
high impedance state.
video signal processing. The device offers an
excellent speed consumption ratio with 4.5 mA
per amplifier for a 150 MHz bandwidth.
High slew rate and low noise also make it suitable
for high-quality audio applications.
The TSH94 offers two separate complementary
STANDBY functions: STANDBY 1 acting on the
n° 2 operator and STANDBY 2 acting on the n° 3
operator.
December 2009 Doc ID 4023 Rev 5 1/21
www.st.com
21
Schematic diagram TSH94
1 Schematic diagram
Figure 1. Schematic diagram
+
V
CC
non inverting
input
inverting
input
stdby
stdby
Internal
V
ref
stdby
output
C
c
stdby
-
V
CC
2/21 Doc ID 4023 Rev 5
TSH94 Absolute maximum ratings and operating conditions
2 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
(3)
(1)
(6)
(2)
(5)
(4)
CC
+
+0.3 V.
14 V
±5 V
-0.3 to 12 V
1.5
2
kV
kV
200
V
V
T
T
CC
V
V
oper
stg
Supply voltage
Differential input voltage
id
Input voltage
i
Operating free-air temperature range -40 to +125 °C
Storage temperature range -65 to +150 °C
CDM: charged device model
ESD
HBM: human body model
MM: machine model
1. All voltage values, except differential voltage are with respect to network ground terminal.
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
3. The magnitude of input and output voltages must never exceed V
4. Charged device model: all pins and the package are charged together to the specified voltage and then
discharged directly to the ground through only one pin. This is done for all pins.
5. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a
1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
6. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of
connected pin combinations while the other pins are floating
Table 2. Operating conditions
Symbol Parameter Value Unit
V
CC
V
icm
Supply voltage 7 to 12 V
Common mode input voltage range V
CC
-
+2 to V
CC
+
-1 V
Doc ID 4023 Rev 5 3/21
Electrical characteristics TSH94
3 Electrical characteristics
Table 3. V
CC
+
= 5 V, V
(unless otherwise specified)
Symbol Parameter Min. Typ. Max. Unit
-
= -5 V, pin 8 connected to 0 V, pin 9 connected to V
CC
CC
+
, T
= 25° C
amb
V
io
I
io
I
ib
I
CC
CMR
SVR
A
vd
V
OH
Input offset voltage Vic = Vo = 0 V
≤ T
T
min
amb
≤ T
max
Input offset current
≤ T
T
min
amb
≤ T
max
Input bias current
≤ T
T
min
amb
≤ T
max
Supply current (per amplifier, no load)
≤ T
≤ T
≤ T
amb
amb
amb
≤ T
≤ T
≤ T
max
max
max
= -3 V to +4 V, Vo = 0 V
ic
= ±5 V to ±3 V
CC
T
min
Common mode rejection ratio V
T
min
Supply voltage rejection ratio V
T
min
Large signal voltage gain RL = 10 kΩ, Vo = ±2.5 V
T
≤ T
amb
≤ T
max
id
= 1 V
min
High level output voltage V
RL = 600 Ω
= 150 Ω
R
T
≤ T
amb
≤ T
max
min
RL = 150 Ω
.
L
80
70
60
50
57
54
3
2.5
2.4
12
515
4.5 6
100
75
70
3.5
3
20
3
5
5
mV
μA
μA
8
mA
dB
dB
dB
V
Low level output voltage Vid = 11 V
= 600 Ω
R
V
OL
≤ T
T
min
amb
≤ T
max
RL = 150 Ω
RL = 150 Ω
.
L
-3.5
-2.8
-3
-2.5
-2.4
V
Output short-circuit current Vid = ±1 V
I
o
≤ T
T
min
amb
≤ T
max
Sink
Source
.
Sink
Source
GBP
SR
φm Phase margin A
V
O1/VO2
THD Total harmonic distortion f = 1 kHz, V
Gain bandwidth product
= 100, RL = 600 Ω, CL = 15 pF, f = 7.5 MHz
A
VCL
Transition frequency 90 MHz
f
T
Slew rate
= -2 to +2 V, A
V
in
Equivalent input voltage noise Rs = 50 Ω, f = 1 kHz 4.2 nV/√Hz
e
n
= +1, RL = 600 Ω, CL = 15 pF 70 110
VCL
= +1 35 Degrees
VM
Channel separation f = 1 MHz to 10 MHz 65 dB
Gain flatness f = DC to 6 MHz, A
G
f
= 10 dB 0.1 dB
VCL
= ±2.5 V, RL = 600 Ω 0.01 %
o
20
20
15
15
90 150
36
40 mA
MHz
V/μs
4/21 Doc ID 4023 Rev 5
TSH94 Electrical characteristics
Table 3. V
CC
+
= 5 V, V
-
= -5 V, pin 8 connected to 0 V, pin 9 connected to V
CC
CC
+
, T
= 25° C
amb
(unless otherwise specified) (continued)
Symbol Parameter Min. Typ. Max. Unit
ΔG Differential gain f = 3.58 MHz, A
Δϕ Differential phase f = 3.58 MHz, A
= +2, RL = 150 Ω 0.03 %
VCL
= +2, RL = 150 Ω 0.07 Degree
VCL
Standby mode
Table 4. V
CC
+
= 5 V, V
Symbol Parameter Min. Typ. Max. Unit
V
STBY
Pin 8/9 threshold voltage for STANDBY mode V
Total consumption
I
CC-STBY
Standby 1 & 2 = 0
Standby 1 & 2 = 1
Standby 1 = 1, Standby 2 = 0
I
t
t
I
Table 5. Standby control pin status
Input/output isolation (f = 1 MHz to 10 MHz) 70 dB
sol
Time from standby mode to active mode 200 ns
on
Time from active mode to standby mode 200 ns
off
Standby driving current 2 pA
I
D
Output leakage current 20 pA
OL
Input leakage current 20 pA
I
IL
-
= -5 V, T
CC
= 25° C (unless otherwise specified)
amb
+
-2.2 V
CC
CC
13.7
13.7
9.4
+
-1.6 V
+
-1.0 V
CC
mA
Logic input Status
Standby 1 Standby 2 Op-amp 2 Op-amp 3 Op-amps 1 & 4
0 0 Enable Standby Enable
0 1 Enable Enable Enable
1 0 Standby Standby Enable
1 1 Standby Enable Enable
Doc ID 4023 Rev 5 5/21
Electrical characteristics TSH94
Figure 2. Standby position
V
CC
standby
V
CC
To put the device in standby, apply a logic level on the standby MOS input. Because ground
is a virtual level for the device, the threshold voltage is to V
CC
+
+
(V
- 1.6 V typ, see
CC
Ta bl e 4 ).
6/21 Doc ID 4023 Rev 5
TSH94 Electrical characteristics
Figure 3. Closed-loop frequency response Figure 4. Gain flatness and phase shift
versus frequency
Figure 5. Open-loop frequency response and
Figure 6. Static open-loop voltage gain
phase shift
Figure 7. Audio bandwidth frequency
response and phase shift (TSH94
vs standard 15 MHz audio op-amp)
Figure 8. Large signal follower response
Doc ID 4023 Rev 5 7/21
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