®
TS921
RAIL TO RAIL
HIGH OUTPUT CURRENT
SINGLE OPERATIONAL AMPLIFIER
.
.
.
.
.
.
.
.
.
RAIL TO RAIL INPUT AND OUTPUT
LOW NOISE :
9nV/√
)
√(
Hz)
LOW DISTORTION
HIGH OUTPUT CURRENT :
80mA
(able to drive 32Ω loads)
HIGH SPEED :
4MHz, 1.3V/µs
OPERATING FROM
2.7V to 12V
ESD INTERNAL PROTECTION : 1.5KV
LATCH-UP IMMUNITY
MACROMODEL INCLUDED IN THIS
SPECIFICATION
N
DIP8
(Plastic Package)
D
SO8
(Plastic Micropackage)
P
TSSOP8
(Thin Shrink Small Outline Package)
ORDER CODES
DESCRIPTION
The TS921 is a RAIL TO RAIL single BiCMOS
operational amplifier optimized and fully specified
for 3V and 5V operation.
High output current allows low load impedances to
be driven.
The TS921 exhibits a very low noise, low distortion,
low offset and high ouput current capability making
this device an excellent choice for high quality, low
voltage or battery operated audio systems.
The device is stable for capacitive loads up to
500pF.
Part Number
TS921I
Temperature Range
-40, +125
o
C
Package
N
•
D
•
P
•
PIN CONNECTIONS
(top view)
N.C.
Inverting Input
1
2
3
-
+
8
N.C.
7
V
CC
+
6
Output
5
N.C.
.
.
.
.
.
.
.
APPLICATIONS
headphone amplifier
piezoelectric speaker driver
sound cards, multimedia systems
line driver, actuator driver
servo amplifier
mobile phone and portable communication
sets
instrumentation with low noise as a key factor
Non-inve rting Input
V
CC
4
March 1999
1/11
TS921
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
id
V
i
T
oper
T
stg
T
j
Notes :
1.
2.
3.
4.
Parameter
Supply Voltage - (note 1)
Differential Input Voltage - (note 2)
Input Voltage - (note 3)
Operating Free Air Temperature Range
Storage Temperature
Maximum Junction Temperature
Output Short Circuit Duration
Value
12
±1
-0.3 to 14
-40 to +125
-65 to +150
150
see note 4
Unit
V
V
V
o
o
o
o
C
C
C
C
All voltage values, except differential voltage are with respect to network ground terminal.
Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
The magnitude of input and output voltages must never exceed V
CC+
+0.3V.
Short-circuits can cause excessive heating.
OPERATING CONDITIONS
Symbol
V
CC
V
icm
Supply Voltage
Common Mode Input Voltage Range
-
Parameter
Value
2.7 to 12
V
CC
-0.2 to
V
CC+
+0.2
Unit
V
V
2/11
TS921
ELECTRICAL CHARACTERISTICS
V
CC+
= 3V, T
amb
= 25
o
C (unless otherwise specified)
Symbol
V
io
DV
io
I
io
I
ib
V
OH
V
OL
A
vd
I
CC
GBP
CMR
SVR
I
o
SR
∅m
G
m
e
n
THD
Parameter
Input Offset Voltage
T
min.
≤
T
amb
≤
T
max.
Input Offset Voltage Drift
Input Offset Current
V
out
= 1.5V
Input Bias Current
V
out
= 1.5V
High Level Output Voltage
Low Level Output Voltage
Large Signal Voltage Gain (V
out
= 2Vpk-pk)
Supply Current
no load, V
out
= V
CC/2
Gain Bandwidth Product
R
L
= 600Ω
Common Mode Rejection Ratio
Supply Voltage Rejection Ratio
V
CC
= 2.7 to 3.3V
Output Short Circuit Current
Slew Rate
Phase Margin at Unity Gain
R
L
= 600Ω,C
L
= 100pF
Gain Margin
R
L
= 600Ω,C
L
= 100pF
Equivalent Input Noise Voltage
f = 1kHz
Total Harmonic Distortion
V
out
= 2Vpk-pk, F = 1kHz, A
V
= 1, R
L
= 600Ω
60
60
50
0.7
Min.
Typ.
Max.
3
5
Unit
mV
µV/
o
C
nA
30
nA
15
R
L
= 600Ω
R
L
= 32Ω
R
L
= 600Ω
R
L
= 32Ω
R
L
= 600Ω
R
L
= 32Ω
2.87
2.63
100
180
35
16
1
4
80
80
80
1.3
68
dB
12
9
0.005
nV
Hz
√
%
1.5
MHz
dB
dB
mA
V/µs
Degrees
mV
V/mV
mA
100
V
2
3/11
TS921
ELECTRICAL CHARACTERISTICS
V
CC+
= 5V, T
amb
= 25
o
C (unless otherwise specified)
Symbol
V
io
DV
io
I
io
I
ib
V
OH
V
OL
A
vd
I
CC
GBP
CMR
SVR
I
o
SR
∅m
G
m
e
n
THD
Parameter
Input Offset Voltage
T
min.
≤
T
amb
≤
T
max.
Input Offset Voltage Drift
Input Offset Current
V
out
= 1.5V
Input Bias Current
V
out
= 1.5V
High Level Output Voltage
Low Level Output Voltage
Large Signal Voltage Gain (V
out
= 2Vpk-pk)
Supply Current
no load, V
out
= V
CC/2
Gain Bandwidth Product
R
L
= 600Ω
Common Mode Rejection Ratio
Supply Voltage Rejection Ratio
V
CC
= 2.7 to 3.3V
Output Short Circuit Current
Slew Rate
Phase Margin at Unity Gain
R
L
= 600Ω,C
L
= 100pF
Gain Margin
R
L
= 600Ω,C
L
= 100pF
Equivalent Input Noise Voltage
f = 1kHz
Total Harmonic Distortion
V
out
= 2Vpk-pk, F = 1kHz, A
V
= 1, R
L
= 600Ω
Min.
Typ.
Max.
3
5
Unit
mV
µV/
o
C
nA
30
nA
15
R
L
= 600Ω
R
L
= 32Ω
R
L
= 600Ω
R
L
= 32Ω
R
L
= 600Ω
R
L
= 32Ω
4.85
4.4
120
300
35
16
1
4
80
80
80
1.3
68
dB
12
9
0.005
nV
Hz
√
%
1.5
MHz
60
60
50
0.7
dB
dB
mA
V/µs
Degrees
mV
V/mV
mA
100
V
2
4/11
TS921
MACROMODEL
RAIL TO RAIL INPUT AND OUTPUT
LOW NOISE :
9nV√
Hz
√
LOW DISTORTION
.
.
.
.
.
.
HIGH OUTPUT CURRENT :
80mA
(able to drive
32Ω
loads)
HIGH SPEED :
4MHz, 1.3V/µs
OPERATING FROM
2.7V TO 12V
** Standard Linear Ics Macromodels, 1996.
** CONNECTIONS :
* 1 INVERTING INPUT
* 2 NON-INVERTING INPUT
* 3 OUTPUT
* 4 POSITIVE POWER SUPPLY
* 5 NEGATIVE POWER SUPPLY
. S UBCK T T S9 2 1 1 3 2 4 5 (a n alo g )
*********************************************************
.MODEL MDTH D IS=1E-8 KF=2.664234E-16
CJO=10F
* INPUT STAGE
CIP 2 5 1.000000E-12
CIN 1 5 1.000000E-12
EIP 10 5 2 5 1
EIN 16 5 1 5 1
RIP 10 11 8.125000E+00
RIN 15 16 8.125000E+00
RIS 11 15 2.238465E+02
DIP 11 12 MDTH 400E-12
DIN 15 14 MDTH 400E-12
VOFP 12 13 DC 153.5u
VOFN 13 14 DC 0
IPOL 13 5 3.200000E-05
CPS 11 15 1e-9
DINN 17 13 MDTH 400E-12
VIN 17 5 -0.100000e+00
DINR 15 18 MDTH 400E-12
VIP 4 18 0.400000E+00
FCP 4 5 VOFP 1.865000E+02
FCN 5 4 VOFN 1.865000E+02
FIBP 2 5 VOFP 6.250000E-03
FIBN 5 1 VOFN 6.250000E-03
* GM1 STAGE ***************
FGM1P 119 5 VOFP 1.1
FGM1N 119 5 VOFN 1.1
RAP 119 4 2.6E+06
RAN 119 5 2.6E+06
* GM2 STAGE ***************
G2P 19 5 119 5 1.92E-02
G2N 19 5 119 4 1.92E-02
R2P 19 4 1E+07
R2N 19 5 1E+07
**************************
VINT1 500 0 5
GCONVP 500 501 119 4 19.38 !envoie ds VP,
I(VP)=(V119-V4)/2/Ut VP 501 0 0
GCONVN 500 502 119 5 19.38 !envoie ds VN,
I(VN)=(V119-V5)/2/Ut VN 502 0 0
********* orientation isink isource *******
VINT2 503 0 5
FCOPY 503 504 VOUT 1
DCOPYP 504 505 MDTH 400E-9
VCOPYP 505 0 0
DCOPYN 506 504 MDTH 400E-9
VCOPYN 0 506 0
***************************
F2PP 19 5 poly(2) VCOPYP VP 0 0 0 0 0.5 !multiplie
I(vout)*I(VP)=Iout*(V119-V4)/2/Ut
F2PN 19 5 poly(2) VCOPYP VN 0 0 0 0 0.5
!multiplie I(vout)*I(VN)=Iout*(V119-V5)/2/Ut
F2NP 19 5 poly(2) VCOPYN VP 0 0 0 0 1.75
!multiplie I(vout)*I(VP)=Iout*(V119-V4)/2/Ut
F2NN 19 5 poly(2) VCOPYN VN 0 0 0 0 1.75
!multiplie I(vout)*I(VN)=Iout*(V119-V5)/2/Ut
* COMPENSATION ************
CC 19 119 25p
* OUTPUT***********
DOPM 19 22 MDTH 400E-12
DONM 21 19 MDTH 400E-12
HOPM 22 28 VOUT 6.250000E+02
VIPM 28 4 5.000000E+01
HONM 21 27 VOUT 6.250000E+02
VINM 5 27 5.000000E+01
VOUT 3 23 0
ROUT 23 19 6
COUT 3 5 1.300000E-10
DOP 19 25 MDTH 400E-12
VOP 4 25 1.052
DON 24 19 MDTH 400E-12
VON 24 5 1.052
.ENDS
5/11
嵌入式系统
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