HOLTEK HT9291_1010

HT9291/HT9292/HT9294
TinyPowerTM Operation Amplifier
Features
· Wide operating voltage: 1.4V to 5.5V
· Available in Single, Dual and Quad OP¢s package
types
· Low quiescent current: typical 0.6mA/amplifier
· Package type:
· Rail-to-Rail output
HT9291: TSOT23-5
HT9292: 8-pin DIP/SOP
HT9294: 14-pin DIP/SOP
· Gain bandwidth: 11kHz typical
· Unity gain stable
Applications
· Wearable products
· Portable equipment
· Temperature measurement
· Low power sensors
· Battery powered products
General Description
ble. The devices are available in a range of packages
according the number of internal amplifiers. The special
characteristics of these devices will ensure their excellent use in applications with stringent low power demands such as portable products, battery powered
equipment, low power sensor signal processing etc.
The Holtek HT9291/HT9292/HT9294 range of Low
Power Operation Amplifiers offer the advantage of a single supply voltage down to as low as 1.4V as well as the
advantages of an extremely low quiescent current of
only 0.6mA/amplifier. One other major advantage of
these devices lie in their rail-to-rail voltage operation for
maximum range. The devices also provide a typical gain
bandwidth product of 11kHz and are also unity gain sta-
Selection Table
Part No.
Amplifiers
Package
HT9291
1
TSOT23-5
HT9292
2
8DIP/SOP
HT9294
4
14DIP/SOP
Block Diagram
1 O U T
4 O U T
1 IN -
4 IN -
1 IN +
4 IN +
V D D
V S S
2 IN +
3 IN +
2 IN -
3 IN -
2 O U T
Rev. 1.10
3 O U T
1
October 12, 2010
HT9291/HT9292/HT9294
Pin Assignment
V D D
O U T
IN -
V S S
IN +
1 O U T
1
1 4
4 O U T
1 IN 2
1 3
4 IN -
1 IN +
3
1 2
4 IN +
1 O U T
1
8
V D D
V D D
4
1 1
V S S
1 IN 2
7
2 O U T
2 IN +
5
1 0
3 IN +
1 IN +
3
6
2 IN -
2 IN 6
9
3 IN -
V S S
4
5
2 IN +
2 O U T
7
8
3 O U T
H T 9 2 9 1
T S O T 2 3 -5
H T 9 2 9 2
8 D IP -A /S O P -A
H T 9 2 9 4
1 4 D IP -A /S O P -A
Pin Descriptions
HT9291
Pin No.
Pin Name
Description
1
OUT
Analog output
2
VSS
Negative power supply
3
IN+
Non-inverting input
4
IN-
Inverting input
5
VDD
Positive power supply
HT9292
Pin No.
Pin Name
Description
1
1OUT
Analog output (operation amplifier 1)
2
1IN-
Inverting input (operation amplifier 1)
3
1IN+
Non-inverting input (operation amplifier 1)
4
VSS
Negative power supply
5
2IN+
Non-inverting input (operation amplifier 2)
6
2IN-
Inverting input (operation amplifier 2)
7
2OUT
Analog output (operation amplifier 2)
8
VDD
Positive power supply
HT9294
Pin No.
Pin Name
1
1OUT
Analog output (operation amplifier 1)
Description
2
1IN-
Inverting input (operation amplifier 1)
3
1IN+
Non-inverting input (operation amplifier 1)
4
VDD
Positive power supply
5
2IN+
Non-inverting input (operation amplifier 2)
6
2IN-
Inverting input (operation amplifier 2)
7
2OUT
Analog output (operation amplifier 2)
8
3OUT
Analog output (operation amplifier 3)
9
3IN-
Inverting input (operation amplifier 3)
10
3IN+
Non-inverting input (operation amplifier 3)
11
VSS
Negative power supply
12
4IN+
Non-inverting input (operation amplifier 4)
13
4IN-
Inverting input (operation amplifier 4)
14
4OUT
Analog output (operation amplifier 4)
Rev. 1.10
2
October 12, 2010
HT9291/HT9292/HT9294
Absolute Maximum Ratings
Supply Voltage .......................................................6.0V
Input Voltage..............................VSS-0.3V ~ VDD+0.3V
Difference Input Voltage ..............................±(VDD-VSS)
ESD protection on all pins (HBM;MM) ........³4kV; 400V
Storage Temperature .........................-65°C to +150°C
Operating Temperature ........................-40°C to +85°C
Junction Temperature ..........................................150°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed
in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
Electrical Characteristics
Unless otherwise indicated, VSS=GND, Ta=25°C, VCM=VDD/2, VL=VDD/2, and RL=1MW to VL, CL=60pF
Symbol
Parameter
Test Conditions
VDD
Conditions
Typ.
Max.
Unit
1.4
¾
5.5
V
VDD
Supply Voltage
¾
VOS
Input Offset Voltage
5V VIN=VCM/2
-5.0
¾
5.0
mV
DVOS/DT
Drift with Temperature
5V VIN=VCM/2
¾
±2
¾
mV/°C
IOS
Input Offset Current
5V Ta=25°C
¾
±5
¾
pA
IB
Input Bias Current
5V Ta=25°C
¾
±50
¾
pA
VCM
Input Common Mode Range
5V ¾
0
¾
VDD-1.2
V
0.5V input overdrive
RL=1MW to VL
VSS+10
¾
VDD-10
mV
0.5V input overdrive
RL=50kW to VL
VSS+20
¾
VDD-50
mV
VOH
VOL
Maximum Output Voltage Swing
5V
¾
Min.
AOL
DC Open-Loop Gain
(large signal)
5V
VOUT=0.2V to VDD-0.2V,
VIN=VCM/2
70
100
¾
dB
GBW
Gain BandWidth Product
5V
RL=1MW, CL=60pF
VIN=VCM/2
¾
11
¾
kHz
Fm
Phase Margin
5V
RL=1MW, CL=60pF
G=+1V/V, VIN+= VDD/2
¾
50
¾
°
CMRR
Common Mode Rejection Ratio
5V VCM=0V to VDD-1.4V
60
90
¾
dB
PSRR
Power Supply Rejection Ratio
5V VCM = 0.2V
65
95
¾
dB
ICC
Supply Current Per Single
Amplifier
Io=0A for HT9291
0.50
0.80
1.20
5V
mA
Io=0A for HT9292/HT9294
0.30
0.60
1.00
mA
SR
Slew Rate at Unity Gain
5V RL=1MW, CL=60pF
¾
5
¾
V/ms
IO_SOURCE
Output Short Circuit Source
Current
5V VIN+ - VIN- ³ 10mV
-0.3
-1.2
¾
mA
IO_SINK
Output Short Circuit Sink Current
5V VIN- - VIN+ ³ 10mV
1
4
¾
mA
Rev. 1.10
3
October 12, 2010
HT9291/HT9292/HT9294
Functional Description
Input Stage
Output Stage
The input stage of op amps are nominal PMOS differential amplifiers (see the following diagram), therefore the
common mode input voltage can extend to VSS-0.6V.
On the other hand the common mode input voltage has
to be maintained below (VDD-1.2V) to keep the input device (M2 and M3) active. This implies that when using
HT9291/HT9292/HT9294 as a voltage follower, the input as well as output active range will be limited between VSS~VDD-1V (approx.). Avoid applying any
voltage greater than VDD+0.6V or less than VSS-0.6V to
the input pins, otherwise the internal input protection devices may be damaged.
The HT9291/HT9292/HT9294 uses push-pull CMOS
configuration as the output stage of op amps to minimize low power consumption and to provide adequate
output driving current.
V
Note that the output is an unbuffered structure, therefore
the open loop gain will be affected by the load resistor
since the voltage gain of this stage can be expressed as
(gm5+ gm6)´RL.
V
D D
V
V
B IA S
M 5
B IA S
M 1
O U T
N o n in v e r tin g In
F ro m
D iffe r e n tia l
A m p
In v e r tin g In
M 2
P M O S
D D
M 3
P M O S
M 6
V
S S
T o O u tp u t S ta g e
V
M 4
S S
M 5
V
Because of the consideration for minimized power consumption, the output short circuit current is limited to
about -1.2mA for source drive and 4mA for sink drive.
This is believed to be enough for most low power systems, however it is recommended to use the load resistor of >1MW for normal applications. In case of heavy
load driving, an external buffer stage using bipolar transistors is recommended.
S S
Since the input impedance of PMOS is inherently very
high, it can directly couple to high impedance elements
without loading effect. For example, coupling to ceramic
transducers, integrating capacitor and resistor networks.
The HT9291/HT9292/HT9294 is internally compensated for AC stability and capable to withstand up to a
60pF capacitive load.
Actually the extremly high input impedance is its major
advantage over the bipolar counterpart, in some application fields such as integrators where the input current
of op amp can cause significant error.
Rev. 1.10
4
October 12, 2010
HT9291/HT9292/HT9294
Application Circuits
High Side Battery Current Sensor
I IN
V
IN
V
D D
V
O U T
1 0 k W
1 0 0 k W
1 M W
V D D -V O U T
(1 1 V /V ) x (1 0 k W )
I IN =
Two Op Amp Instrumentation Amplifier
R
V
R E F
R
R
V
1
G
R
2
R
2
V
O U T
V 2
1
1 /2
H T 9 2 9 4
V
Rev. 1.10
1
O U T
= (V
2
-V
1
1 /2
H T 9 2 9 4
) x (1 +
5
R
R
2
1
+
2 R
R
1
G
) + V
R E F
October 12, 2010
HT9291/HT9292/HT9294
Package Information
5-pin TSOT23-5 Outline Dimensions
· MO-193C
Symbol
Nom.
Max.
A
¾
¾
0.043
A1
0.000
¾
0.004
A2
0.028
¾
0.039
b
0.012
¾
0.020
C
0.003
¾
0.008
D
¾
0.114
¾
E
¾
0.110
¾
E1
¾
0.063
¾
e
¾
0.037
¾
e1
¾
0.075
¾
L
0.012
¾
0.024
L1
¾
0.024
¾
q
0°
¾
8°
Symbol
Rev. 1.10
Dimensions in inch
Min.
Dimensions in mm
Min.
Nom.
Max.
A
¾
¾
1.10
A1
0.00
¾
0.10
A2
0.70
¾
1.00
b
0.30
¾
0.50
C
0.08
¾
0.20
D
¾
2.90
¾
E
¾
2.80
¾
E1
¾
1.60
¾
e
¾
0.95
¾
e1
¾
1.90
¾
L
0.30
¾
0.60
L1
¾
0.60
¾
q
0°
¾
8°
6
October 12, 2010
HT9291/HT9292/HT9294
8-pin DIP (300mil) Outline Dimensions
A
8
5
B
1
4
H
C
D
I
G
E
F
Symbol
A
Min.
Nom.
Max.
0.355
¾
0.375
B
0.240
¾
0.260
C
0.125
¾
0.135
D
0.125
¾
0.145
E
0.016
¾
0.020
F
0.050
¾
0.070
G
¾
0.100
¾
H
0.295
¾
0.315
I
¾
0.375
¾
Symbol
Rev. 1.10
Dimensions in inch
Dimensions in mm
Min.
Nom.
Max.
A
9.02
¾
9.53
B
6.10
¾
6.60
C
3.18
¾
3.43
D
3.18
¾
3.68
E
0.41
¾
0.51
F
1.27
¾
1.78
G
¾
2.54
¾
H
7.49
¾
8.00
I
¾
9.53
¾
7
October 12, 2010
HT9291/HT9292/HT9294
14-pin DIP (300mil) Outline Dimensions
A
1 4
B
8
1
7
H
C
D
G
E
I
F
Symbol
A
Min.
Nom.
Max.
0.745
¾
0.775
B
0.240
¾
0.260
C
0.125
¾
0.135
D
0.125
¾
0.145
E
0.016
¾
0.020
F
0.050
¾
0.070
G
¾
0.1100
¾
H
0.295
¾
0.315
I
¾
0.375
¾
Symbol
Rev. 1.10
Dimensions in inch
Dimensions in mm
Min.
Nom.
Max.
A
18.92
¾
19.69
B
6.10
¾
6.60
C
3.18
¾
3.43
D
3.18
¾
3.68
E
0.41
¾
0.51
F
1.27
¾
1.78
G
¾
2.54
¾
H
7.49
¾
8.00
I
¾
9.53
¾
8
October 12, 2010
HT9291/HT9292/HT9294
8-pin SOP (150mil) Outline Dimensions
5
8
A
B
4
1
C
C '
G
H
D
E
a
F
· MS-012
Symbol
Nom.
Max.
A
0.228
¾
0.244
B
0.150
¾
0.157
C
0.012
¾
0.020
C¢
0.188
¾
0.197
D
¾
¾
0.069
E
¾
0.050
¾
F
0.004
¾
0.010
G
0.016
¾
0.050
H
0.007
¾
0.010
a
0°
¾
8°
Symbol
Rev. 1.10
Dimensions in inch
Min.
Dimensions in mm
Min.
Nom.
Max.
A
5.79
¾
6.20
B
3.81
¾
3.99
C
0.30
¾
0.51
C¢
4.78
¾
5.00
D
¾
¾
1.75
E
¾
1.27
¾
F
0.10
¾
0.25
G
0.41
¾
1.27
H
0.18
¾
0.25
a
0°
¾
8°
9
October 12, 2010
HT9291/HT9292/HT9294
14-pin SOP (150mil) Outline Dimensions
8
1 4
A
B
7
1
C
C '
G
H
D
E
a
F
· MS-012
Symbol
Nom.
Max.
A
0.228
¾
0.244
B
0.150
¾
0.157
C
0.012
¾
0.020
C¢
0.337
¾
0.344
D
¾
¾
0.069
E
¾
0.050
¾
F
0.004
¾
0.010
G
0.016
¾
0.050
H
0.007
¾
0.010
a
0°
¾
8°
Symbol
Rev. 1.10
Dimensions in inch
Min.
Dimensions in mm
Min.
Nom.
Max.
A
5.79
¾
6.20
B
3.81
¾
3.99
C
0.30
¾
0.51
C¢
8.56
¾
8.74
D
¾
¾
1.75
E
¾
1.27
¾
F
0.10
¾
0.25
G
0.41
¾
1.27
H
0.18
¾
0.25
a
0°
¾
8°
10
October 12, 2010
HT9291/HT9292/HT9294
Product Tape and Reel Specifications
D
T 2
A
C
B
T 1
Reel Dimensions
SOP 8N
Symbol
Description
A
Reel Outer Diameter
B
Reel Inner Diameter
C
Spindle Hole Diameter
D
Key Slit Width
T1
Space Between Flange
T2
Reel Thickness
Dimensions in mm
330.0±1.0
100.0±1.5
13.0
+0.5/-0.2
2.0±0.5
12.8
+0.3/-0.2
18.2±0.2
SOP 14N
Symbol
Description
Dimensions in mm
A
Reel Outer Diameter
330.0±1.0
B
Reel Inner Diameter
100.0±1.5
C
Spindle Hole Diameter
D
Key Slit Width
T1
Space Between Flange
T2
Reel Thickness
13.0
+0.5/-0.2
2.0±0.5
16.8
+0.3/-0.2
22.2±0.2
TSOT23-5
Symbol
Description
Dimensions in mm
A
Reel Outer Diameter
B
Reel Inner Diameter
C
Spindle Hole Diameter
D
Key Slit Width
T1
Space Between Flange
9.0±0.5
T2
Reel Thickness
11.8±0.5
Rev. 1.10
178.0±1.0
60.0±1.0
13.0 +0.5/-0.2
2.4±0.1
11
October 12, 2010
HT9291/HT9292/HT9294
Carrier Tape Dimensions
P 0
D
P 1
t
E
F
W
C
D 1
P
B 0
K 0
A 0
R e e l H o le
IC
p a c k a g e p in 1 a n d th e r e e l h o le s
a r e lo c a te d o n th e s a m e s id e .
SOP 8N
Symbol
Description
Dimensions in mm
12.0
+0.3/-0.1
W
Carrier Tape Width
P
Cavity Pitch
8.0±0.1
E
Perforation Position
1.75±0.1
F
Cavity to Perforation (Width Direction)
5.5±0.1
D
Perforation Diameter
D1
Cavity Hole Diameter
P0
Perforation Pitch
4.0±0.1
P1
Cavity to Perforation (Length Direction)
2.0±0.1
A0
Cavity Length
6.4±0.1
B0
Cavity Width
5.2±0.1
K0
Cavity Depth
1.55±0.1
1.50
+0.25/-0.00
2.1±0.1
t
Carrier Tape Thickness
C
Cover Tape Width
0.30±0.05
9.3±0.1
SOP 14N
Symbol
Description
Dimensions in mm
16.0
+0.3/-0.1
W
Carrier Tape Width
P
Cavity Pitch
8.0±0.1
E
Perforation Position
1.75±0.1
F
Cavity to Perforation (Width Direction)
7.5±0.1
D
Perforation Diameter
1.5
1.50
+0.1/-0.0
+0.25/-0.00
D1
Cavity Hole Diameter
P0
Perforation Pitch
4.0±0.1
P1
Cavity to Perforation (Length Direction)
2.0±0.1
A0
Cavity Length
6.5±0.1
B0
Cavity Width
9.5±0.1
K0
Cavity Depth
2.1±0.1
t
Carrier Tape Thickness
0.30±0.05
C
Cover Tape Width
13.3±0.1
Rev. 1.10
12
October 12, 2010
HT9291/HT9292/HT9294
Carrier Tape Dimensions
P 0
D
P 1
t
E
F
W
C
D 1
B 0
P
K 0
A 0
R e e l H o le
IC
M a r k in g
TSOT23-5
Symbol
Description
Dimensions in mm
W
Carrier Tape Width
8.0±0.2
P
Cavity Pitch
4.0±0.1
E
Perforation Position
F
Cavity to Perforation (Width Direction)
3.50±0.05
D
Perforation Diameter
1.5
+0.1/-0.0
D1
Cavity Hole Diameter
1.1
+0.1/-0.0
P0
Perforation Pitch
P1
Cavity to Perforation (Length Direction)
A0
Cavity Length
3.2±0.1
B0
Cavity Width
3.2±0.1
K0
Cavity Depth
1.1±0.1
t
Carrier Tape Thickness
C
Cover Tape Width
Rev. 1.10
1.75±0.10
4.0±0.1
2.00±0.05
0.25±0.05
5.3±0.1
13
October 12, 2010
HT9291/HT9292/HT9294
Holtek Semiconductor Inc. (Headquarters)
No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan
Tel: 886-3-563-1999
Fax: 886-3-563-1189
http://www.holtek.com.tw
Holtek Semiconductor Inc. (Taipei Sales Office)
4F-2, No. 3-2, YuanQu St., Nankang Software Park, Taipei 115, Taiwan
Tel: 886-2-2655-7070
Fax: 886-2-2655-7373
Fax: 886-2-2655-7383 (International sales hotline)
Holtek Semiconductor Inc. (Shenzhen Sales Office)
5F, Unit A, Productivity Building, No.5 Gaoxin M 2nd Road, Nanshan District, Shenzhen, China 518057
Tel: 86-755-8616-9908, 86-755-8616-9308
Fax: 86-755-8616-9722
Holtek Semiconductor (USA), Inc. (North America Sales Office)
46729 Fremont Blvd., Fremont, CA 94538
Tel: 1-510-252-9880
Fax: 1-510-252-9885
http://www.holtek.com
Copyright Ó 2010 by HOLTEK SEMICONDUCTOR INC.
The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used
solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable
without further modification, nor recommends the use of its products for application that may present a risk to human life
due to malfunction or otherwise. Holtek¢s products are not authorized for use as critical components in life support devices
or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information,
please visit our web site at http://www.holtek.com.tw.
Rev. 1.10
14
October 12, 2010