ETC TSH11ID

TSH11
120MHz BANDWIDTH MOS INPUT
SINGLE OPERATIONAL AMPLIFIER
■ VERY LOW INPUT CURRENT : 2pA typ
■ GAIN BANDWIDTH PRODUCT : 120MHz
■ UNITY GAIN STABLE
■ SLEW RATE : 150V/µs
■ STANDARD PIN OUT
DESCRIPTION
The TSH11 is a low cost wide bandwidth single
operational amplifier featuring extremely low input
current of 2pA typ. Other features as unity gain
stability, fast settling time and high linearity make
it suitable for many applications requiring speed
and very high input impedance as photo cell amplifier, high input impedance buffer, Fet probe,
high speed precision integrator, sample and hold
circuit.
ORDER CODE
D
SO8
(Plastic Micropackage)
PIN CONNECTIONS (top view)
Offset Null1
1
8
Offset Null2
Inverting Input
2
7
VC C+
Non-inverting Input
3
6
Output
4
5
N.C .
VCC
Package
Part Number
Temperature Range
D
TSH11I
-40°C, +125°C
•
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
October 2000
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TSH11
SCHEMATIC DIAGRAM
7 VCC +
Internal
Vre f
non inverting
input
3
6
output
Cc
2
inverting
input
1
Offse t N1
8
Offset N2
4
VCC-
INPUT OFFSET VOLTAGE NULL CIRCUIT
TS H11
N2
N1
100 kΩ
VCC
MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCC
Supply Voltage
±7
V
Vid
Differential Input Voltage
±5
V
Vi
Input Voltage
±5
V
Iin
Current On Offset Null Pins
±20
V
-40 to +125
°C
Value
Unit
Toper
Operating Free-Air Temperature range
OPERATING CONDITIONS
Symbol
VCC
Vic
2/5
Parameter
Supply Voltage
±3 to ±6
V
Common Mode Input Voltage Range
-
V
+
VCC to VCC -3
TSH11
ELECTRICAL CHARACTERISTICS
VCC = ±5V, Tamb = 25°C (unless otherwise specified)
Symbol
Typ.
Max.
Unit
Input Offset Voltage
3
15
mV
Input Offset Voltage Drift
T min. ≤ Tamb ≤ Tmax.
20
Iib
Input Bias Current .
2
300
2
200
pA
20
40
mA
Vio
DVio
Parameter
Min.
Iio
Input Offset Current .
ICC
Supply Current, no load
VCC = ±5V
Avd
Large Signal Voltage Gain
Vo = ±2.5V
RL = 100Ω
Vicm
Input Common Mode Voltage Range
CMR
SVR
Vo
Io
GBP
SR
µV/°C
pA
V/V
200
800
-5 to +2
-5.5 to +2.5
Common-mode Rejection Ratio
V ic = Vicm min.
55
95
Supply Voltage Rejection Ratio
V CC = ±5V to ±3V
45
70
±2.5
+3.5
-3.7
V
±70
mA
Output Voltage
RL = 100Ω
Output Short Circuit Current
Vid = ±1V, Vo = 0V
Gain Bandwidth Product
A VCL = 100, RL = 100Ω, f = 7.5MHz
Slew Rate
V in = ±2V, AVCL = 1, RL = 100Ω
en
Equivalent Input Voltage Noise
φm
Phase Margin
A VM = 1, RL = 100Ω, C L = 15pF
120
150
f = 1MHz
V
dB
dB
MHz
V/µs
20
nV/√Hz
40
Degrees
3/5
TSH11
EVALUATION CIRCUIT
+5V
10µF
50Ω
10nF
Input
50Ω
Output
1kΩ
10nF
10µF
-5V
1kΩ
C
F
PRINTED CIRCUIT LAYOUT
As for any high frequency device, a few rules must
be observed when designing the PCB to get the
best performances from this high speed op amp.
From the most to the least important points :
❑ Each power supply lead has to be bypassed to ground with a 10nF ceramic capacitor very close to the device and a 10µF
tantalum capacitor.
❑ To provide low inductance and low resistance common return, use a ground plane
or common point return for power and signal.
❑ All leads must be wide and as short as possible especially for op amp inputs. This is in
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❑
❑
❑
❑
order to decrease parasitic capacitance
and inductance.
Use small resistor values to decrease time
constant with parasitic capacitance.
Choose component sizes as small as possible (SMD).
On output, decrease capacitor load so as
to avoid circuit stability being degraded
which may cause oscillation. You can also
add a serial resistor in order to minimise its
influence.
One can add in parallel with feedback resistor a few pF ceramic capacitor CF adjusted to optimize the settling time.
TSH11
PACKAGE MECHANICAL DATA
8 PINS - PLASTIC MICROPACKAGE (SO)
Millimeters
Inches
Dim.
Min.
A
a1
a2
a3
b
b1
C
c1
D
E
e
e3
F
L
M
S
Typ.
Max.
0.65
0.35
0.19
0.25
1.75
0.25
1.65
0.85
0.48
0.25
0.5
4.8
5.8
5.0
6.2
0.1
Min.
Typ.
Max.
0.026
0.014
0.007
0.010
0.069
0.010
0.065
0.033
0.019
0.010
0.020
0.189
0.228
0.197
0.244
0.004
45° (typ.)
1.27
3.81
3.8
0.4
0.050
0.150
4.0
1.27
0.150
0.016
0.6
0.157
0.050
0.024
8° (max.)
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consequences of use of such information nor for any infring ement of patents or other right s of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics.
Specifications mention ed in this publ ication are subject to change without notice. This public ation supersedes and replaces all
information previously suppl ied. STMicroelectronics products are not authorized for use as critical components in life suppo rt
devices or systems without express written approval of STMicroelectronics.
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