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ht9231/ht9232/ht9234 operation amplifier selection table part no. amplifiers package ht9231 1 tsot23-5 ht9232 2 8dip/sop ht9234 4 14dip/sop block diagram rev. 1.10 1 june 2, 2010 features operating voltage: 2.0v to 5.5v supply current: 220 a/amplifier typical rail-to-rail output gain bandwidth: 2.3mhz typical unity gain stable available in single, dual and quad op s package types package type: ht9231: tsot23-5 ht9232: 8-pin dip/sop ht9234: 14-pin dip/sop applications automotive portable equipment photo diode amplifier analog filters notebooks and pdas battery powered systems general description the holtek ht9231/ht9232/ht9234 range of operational amplifiers operate with a single supply voltage as low as 2.0v and offer a low supply current of only 220 a/amplifier. in offering rail-to-rail output voltage the devices can operate with a maximum voltage range. the devices also provide a gain bandwidth product of 2.3mhz and are also unity gain stable. these products are suitable for a wide range of analog signal processing applications but especially suitable for the portable device and battery powered equipment application areas.

pin assignment pin descriptions ht9231 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 ht9232 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 ht9234 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 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) ht9231/ht9232/ht9234 rev. 1.10 2 june 2, 2010

absolute maximum ratings supply voltage .......................................................6.0v input voltage..............................v ss 0.3v ~ v dd +0.3v difference input voltage .............................. (v dd v ss ) esd protection on all pins (hbm;mm) ........ 4kv; 400v storage temperature ......................... 65 c to +150c operating temperature ........................ 40 cto+85 c junction temperature ..........................................150 c note: these are stress ratings only. stresses exceeding the range specified under absolute maximum ratings 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, v ss =gnd, ta=25 c, v cm =v dd /2, v l =v dd /2, and r l =10k
to v l ,c l =60pf symbol parameter test conditions min. typ. max. unit v dd conditions v dd supply voltage 2.0 5.5 v v os input offset voltage 5v v in =v cm /2 5.0 5.0 mv v os t drift with temperature 5v v in =v cm /2 2 v/c i os input offset current 5v ta=25c 5 pa i b input bias current 5v ta=25c 50 pa v cm input common mode range 5v 0 v dd 1.4 v v oh v ol maximum output voltage swing 5v 0.5v input overdrive r l =10k
to v l v ss +50 v dd 100 mv 0.5v input overdrive r l =2k
to v l v ss +150 v dd 250 mv a ol dc open-loop gain (large signal) 5v v out =0.2v to v dd -0.2v, v in =v cm /2 70 100 db gbw gain bandwidth product 5v r l =10k
,c l =60pf v in =v cm /2 2.3 mhz m phase margin 5v r l =10k
,c l =60pf g=+1v/v, v in+ =v dd /2 63 cmrr common mode rejection ratio 5v v cm =0v to v dd -1.4v 60 90 db psrr power supply rejection ratio 5v v cm =0.2v 65 95 db i cc supply current per single amplifier 5v io=0a 100 220 340 a sr slew rate at unity gain 5v r l =10k
,c l =60pf 2 v/ms i o_source output short circuit source current 5v v in+ v in- 10mv 5.0 9.0 ma i o_sink output short circuit sink current 5v v in- v in+ 10mv 5.5 9.5 ma ht9231/ht9232/ht9234 rev. 1.10 3 june 2, 2010
ht9231/ht9232/ht9234 rev. 1.10 4 april 8, 2010 functional description input stage as the input stage of these op-amps is a pmos differen - tial amplifiers, the amplifiers can offer an extended com - mon mode low input voltage down to v ss -0.6v. at the other end of the voltage spectrum, the common mode input voltage has to be maintained at a level below v dd 1.4 to keep the input devices, m2 and m3, in their active region. this implies that when using ht9231/ht9232/ht9234 in voltage follower applica - tions, the inputs as well as the output active range will be limited between v ss ~v dd -1v (approx.). it is necessary to avoid applying any voltage greater than v dd +0.6v or less than v ss -0.6v to the input pins, otherwise the inter - nal input protection devices may be damaged. since the input impedance of a pmos transistor is in- herently very high, they can be directly coupled to high impedance elements without loading effects. examples could be coupling to ceramic transducers, integrating capacitors and resistor networks. it is this high input im - pedance characteristic that is its major advantage over its bipolar counterpart in certain application fields such as integrators where op-amp input currents can cause significant errors. output stage the devices use a push-pull cmos configuration for the op-amp output stage to minimise power consumption and to provide adequate output drive currents. 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 is expressed as (gm5+ gm6)r l . to keep power consumption to a minimum, the output short circuit current is limited to about -9ma for the source drive and 9.5ma for the sink drive. this is consid- ered to be enough for most low power systems, how- ever it is recommended only to used load resistors of >10k
for most applications. for heavy load driving ap- plications, an external buffer stage using bipolar transis- tors is recommended. the ht9231/ht9232/ht9234 is internally compen- sated for ac stability and can drive capacitive loads of up to 60pf.

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application circuits difference amplifier circuit two op amp instrumentation amplifier ht9231/ht9232/ht9234 rev. 1.10 5 june 2, 2010 * * * * + & , , * *

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package information 5-pin tsot23-5 outline dimensions mo-193c symbol dimensions in inch min. nom. max. a 0.043 a1 0.000 0.004 a2 0.028 0.039 b 0.012 0.020 c 0.003 0.008 d 0.114 e 0.110 e1 0.063 e 0.037 e1 0.075 l 0.012 0.024 l1 0.024 08 symbol dimensions in mm min. nom. max. a 1.10 a1 0.00 0.10 a2 0.70 1.00 b 0.30 0.50 c 0.08 0.20 d 2.90 e 2.80 e1 1.60 e 0.95 e1 1.90 l 0.30 0.60 l1 0.60 08 ht9231/ht9232/ht9234 rev. 1.10 6 june 2, 2010
8-pin dip (300mil) outline dimensions symbol dimensions in inch min. nom. max. a 0.355 0.375 b 0.240 0.260 c 0.125 0.135 d 0.125 0.145 e 0.016 0.020 f 0.050 0.070 g 0.100 h 0.295 0.315 i 0.375 symbol dimensions in mm min. nom. max. a 9.02 9.53 b 6.10 6.60 c 3.18 3.43 d 3.18 3.68 e 0.41 0.51 f 1.27 1.78 g 2.54 h 7.49 8.00 i 9.53 ht9231/ht9232/ht9234 rev. 1.10 7 june 2, 2010 " " 2
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14-pin dip (300mil) outline dimensions symbol dimensions in inch min. nom. max. a 0.745 0.775 b 0.240 0.260 c 0.125 0.135 d 0.125 0.145 e 0.016 0.020 f 0.050 0.070 g 0.1100 h 0.295 0.315 i 0.375 symbol dimensions in mm min. nom. max. a 18.92 19.69 b 6.10 6.60 c 3.18 3.43 d 3.18 3.68 e 0.41 0.51 f 1.27 1.78 g 2.54 h 7.49 8.00 i 9.53 ht9231/ht9232/ht9234 rev. 1.10 8 june 2, 2010 2
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8-pin sop (150mil) outline dimensions ms-012 symbol dimensions in inch min. nom. max. a 0.228 0.244 b 0.150 0.157 c 0.012 0.020 c 0.188 0.197 d 0.069 e 0.050 f 0.004 0.010 g 0.016 0.050 h 0.007 0.010 08 symbol dimensions in mm min. nom. max. a 5.79 6.20 b 3.81 3.99 c 0.30 0.51 c 4.78 5.00 d 1.75 e 1.27 f 0.10 0.25 g 0.41 1.27 h 0.18 0.25 08 ht9231/ht9232/ht9234 rev. 1.10 9 june 2, 2010
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14-pin sop (150mil) outline dimensions ms-012 symbol dimensions in inch min. nom. max. a 0.228 0.244 b 0.150 0.157 c 0.012 0.020 c 0.337 0.344 d 0.069 e 0.050 f 0.004 0.010 g 0.016 0.050 h 0.007 0.010 08 symbol dimensions in mm min. nom. max. a 5.79 6.20 b 3.81 3.99 c 0.30 0.51 c 8.56 8.74 d 1.75 e 1.27 f 0.10 0.25 g 0.41 1.27 h 0.18 0.25 08 ht9231/ht9232/ht9234 rev. 1.10 10 june 2, 2010 2
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product tape and reel specifications reel dimensions sop 8n symbol description dimensions in mm a reel outer diameter 330.01.0 b reel inner diameter 100.01.5 c spindle hole diameter 13.0 +0.5/-0.2 d key slit width 2.00.5 t1 space between flange 12.8 +0.3/-0.2 t2 reel thickness 18.20.2 sop 14n symbol description dimensions in mm a reel outer diameter 330.01.0 b reel inner diameter 100.01.5 c spindle hole diameter 13.0 +0.5/-0.2 d key slit width 2.00.5 t1 space between flange 16.8 +0.3/-0.2 t2 reel thickness 22.20.2 tsot23-5 symbol description dimensions in mm a reel outer diameter 178.01.0 b reel inner diameter 60.01.0 c spindle hole diameter 13.0 +0.5/-0.2 d key slit width 2.40.1 t1 space between flange 9.00.5 t2 reel thickness 11.80.5 ht9231/ht9232/ht9234 rev. 1.10 11 june 2, 2010 2

carrier tape dimensions sop 8n symbol description dimensions in mm w carrier tape width 12.0 +0.3/-0.1 p cavity pitch 8.00.1 e perforation position 1.750.1 f cavity to perforation (width direction) 5.50.1 d perforation diameter 1.550.1 d1 cavity hole diameter 1.50 +0.25/-0.00 p0 perforation pitch 4.00.1 p1 cavity to perforation (length direction) 2.00.1 a0 cavity length 6.40.1 b0 cavity width 5.20.1 k0 cavity depth 2.10.1 t carrier tape thickness 0.300.05 c cover tape width 9.30.1 sop 14n symbol description dimensions in mm w carrier tape width 16.0 +0.3/-0.1 p cavity pitch 8.00.1 e perforation position 1.750.1 f cavity to perforation (width direction) 7.50.1 d perforation diameter 1.5 +0.1/-0.0 d1 cavity hole diameter 1.50 +0.25/-0.00 p0 perforation pitch 4.00.1 p1 cavity to perforation (length direction) 2.00.1 a0 cavity length 6.50.1 b0 cavity width 9.50.1 k0 cavity depth 2.10.1 t carrier tape thickness 0.300.05 c cover tape width 13.30.1 ht9231/ht9232/ht9234 rev. 1.10 12 june 2, 2010
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carrier tape dimensions tsot23-5 symbol description dimensions in mm w carrier tape width 8.00.2 p cavity pitch 4.00.1 e perforation position 1.750.10 f cavity to perforation (width direction) 3.500.05 d perforation diameter 1.5 +0.1/-0.0 d1 cavity hole diameter 1.1 +0.1/-0.0 p0 perforation pitch 4.00.1 p1 cavity to perforation (length direction) 2.000.05 a0 cavity length 3.20.1 b0 cavity width 3.20.1 k0 cavity depth 1.10.1 t carrier tape thickness 0.250.05 c cover tape width 5.30.1 ht9231/ht9232/ht9234 rev. 1.10 13 june 2, 2010
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ht9231/ht9232/ht9234 rev. 1.10 14 june 2, 2010 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 2010 by holtek semiconductor inc. the information appearing in this data sheet is believed to be accurate at the time of publication. however, holtek as - sumes 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.

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