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. 1.00 3 O U T 1 March 8, 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. 1.00 2 March 8, 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 Min. Typ. Max. Unit VDD Supply Voltage ¾ ¾ 1.4 ¾ 5.5 V 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 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 5V Io=0A 0.3 0.6 1.0 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. 1.00 3 March 8, 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. 1.00 4 March 8, 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. 1.00 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 March 8, 2010 HT9291/HT9292/HT9294 Package Information 5-pin TSOT23-5 Outline Dimensions · MO-193C Symbol Dimensions in inch Min. 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 e 0.063 ¾ 0.037 e1 L 0.012 ¾ 0.024 L1 ¾ 0.024 ¾ q 0° ¾ 8° Symbol 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 Rev. 1.00 ¾ 0.075 1.60 e ¾ 0.95 e1 ¾ 1.90 ¾ L 0.30 ¾ 0.60 L1 ¾ 0.60 ¾ q 0° ¾ 8° 6 March 8, 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. 1.00 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 March 8, 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. 1.00 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 March 8, 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. 1.00 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 March 8, 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. 1.00 Dimensions in mil 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 March 8, 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. 1.00 178.0±1.0 60.0±1.0 13.0 +0.5/-0.2 2.4±0.1 11 March 8, 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. 1.00 12 March 8, 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. 1.00 1.75±0.10 4.0±0.1 2.00±0.05 0.25±0.05 5.3±0.1 13 March 8, 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. 1.00 14 March 8, 2010