TECHNICAL NOTE General-purpose Operational Amplifier / Comparator Low Voltage CMOS Comparator BU7251G,BU7251SG, BU7231G,BU7231SG, BU7252F/FVM,BU7252S F/FVM, BU7232F/FVM,BU7232S F/FVM ● Description CMOS comparator BU7251/BU7231family and BU7252/BU7232 family are input full swing and push pull output comparator. These ICs integrate one op-amp or two independent op-amps and phase compensation capacitor on a single chip. The features of these ICs are low operating supply Voltage that is +1.8V to ＋5.5V(single supply) and low supply current, extremely low input bias current. High speed Single (BU7251SG:105℃) BU7252 F/FVM Dual Low pow er BU7251 G (BU7252S F/FVM:105℃) Single BU7231 G (BU7231SG:105℃) BU7232 F/FVM Dual (BU7232S F/FVM:105℃) ● Features 1) 2) 3) 4) 5) 6) Low operating supply voltage (＋1.8[V]～＋5.5[V]) ＋1.8 [V]～＋5.5[V](single supply) ±0.9[V]～±2.75[V](split supply) Input and Output full swing Push-pull output type High speed operation (BU7251 family, BU7252 family) Low supply current (BU7231 family, BU7232 family) 7) 8) Internal ESD protection Human body model (HBM) ±4000[V](Typ.) Wide temperature range －40[℃]～＋85[℃] (BU7251G,BU7252 family, BU7231G, BU7232 family) －40[℃]～＋105[℃] (BU7251SG,BU7252S family, BU7231SG,BU7232S family) ● Pin Assignments IN- 1 VSS 2 5 VDD IN1- 2 － 8 VDD OUT1 1 CH1 7 OUT2 - + ＋ IN+ 3 IN1+ 3 4 OUT SSOP5 BU7251G BU7251SG BU7231G BU7231SG VSS 4 SOP8 BU7252F BU7252SF BU7232F BU7232SF CH2 + - 6 IN25 IN2+ MSOP8 BU7252FVM BU7252SFVM BU7232FVM BU7232SFVM 2007. October ● Absolute maximum ratings (Ta=25[℃]) Rating Parameter Symbol Supply Voltage BU7251G，BU7252 F/FVM BU7231G，BU7232 F/FVM Unit BU7251SG，BU7252S F/FVM BU7231SG，BU7232S F/FVM VDD-VSS ＋7 Vid VDD－VSS V Input Common-mode voltage range Vicm (VSS－0.3) to VDD＋0.3 V Operating Temperature Topr Storage Temperature Tstg －55 to＋125 ℃ Tjmax ＋125 ℃ Differential Input Voltage (*1) Maximum junction Temperature V －40 to＋85 －40 to＋105 ℃ Note: Absolute maximum rating item indicates the condition which must not be exceeded. Application of voltage in excess of absolute maximum rating or use out absoluted maximum rated temperature environment may cause deterioration of characteristics. (*1) The voltage difference between inverting input and non-inverting input is the differential input voltage. Then input terminal voltage is set to more then VEE. ● Electrical characteristics ○BU7251 family, BU7252 family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃]) Guaranteed Limit Parameter Symbol Temperature range BU7251G BU7251SG BU7252 F/FVM BU7252S F/FVM Min. Typ. Max. Min. Typ. Max. Unit Condition － Input Offset Voltage (*2)(*4) Vio 25℃ - 1 11 - 1 11 mV Input Offset Current (*2) Iio 25℃ - 1 - - 1 - pA － Input Bias Current (*2) Ib 25℃ - 1 - - 1 - pA － Input Common-mode voltage Range Vicm 25℃ 0 - 3 0 - 3 V (VDD-VSS)=3[V] Large Signal Voltage Gain AV 25℃ - 90 - - 90 - dB RL=10[kΩ] 25℃ - 15 35 - 35 65 full range - - 50 - - 80 µA RL=∞ Supply current(*4) IDD Power supply rejection ratio PSRR 25℃ - 80 - - 80 - dB － Common-mode rejection ratio CMRR 25℃ - 80 - - 80 - dB － Output source current (*3) IOH 25℃ 1 2 - 1 2 - mA Output sink current (*3) IOL 25℃ 3 6 - 3 6 - mA High Level Output Voltage (*4) VOH 25℃ VDD-0.1 - - VDD-0.1 - - V Low Level Output Voltage (*4) VOL 25℃ - - VSS+0.1 - - VSS+0.1 V RL=10[kΩ] Tr 25℃ - 50 - - 50 - ns CL=15pF 100mV over drive Output rise time Output fall time VDD-0.4 VSS+0.4 RL=10[kΩ] Tf 25℃ - 20 - - 20 - ns CL=15pF 100mV over drive Propagation delay L to H TPLH 25℃ - 0.55 - - 0.55 - µs CL=15pF 100mV over drive Propagation delay H to L TPHL 25℃ - 0.25 - - 0.25 - µs CL=15pF 100mV over drive (*2) Abusolute values (*3) Reference to power dissipation under the high temperature environment and decide the output current. Continuous short circuit is occurring the degenerate of output current characteristics. (*4) Full range BU7251,BU7252：Ta=-40[℃] to +85[℃] BU7251S,BU7252S：Ta=-40[℃] to +105[℃] ● Electrical characteristics ○BU7231 family, BU7232 family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃]) Parameter Symbol Temperature range BU7231G BU7231SG Min. Guaranteed limit BU7232F/FVM BU7232S F/FVM Min. Typ. Max. Unit Condition － Input Offset Voltage (*5) Vio 25℃ - 1 11 - 1 11 mV Input Offset Current (*5) Iio 25℃ - 1 - - 1 - pA － Input Bias Current (*5) Ib 25℃ - 1 - - 1 - pA － Input Common-mode voltage Range Vicm 25℃ 0 - 3 0 - 3 V (VDD-VSS)=3[V] Large Signal Voltage Gain AV 25℃ - 90 - - 90 - dB RL=10[kΩ] 25℃ - 5 15 - 10 25 full range - - 30 - - 50 µA RL=∞ Supply current IDD Power supply rejection ratio PSRR 25℃ - 80 - - 80 - dB － Common-mode rejection ratio CMRR 25℃ - 80 - - 80 - dB － Output source current (*6) IOH 25℃ 1 2 - 1 2 - mA Output sink current (*6) IOL 25℃ 3 6 - 3 6 - mA High Level Output Voltage (*7) VOH 25℃ VDD-0.1 - - VDD-0.1 - - V Low Level Output Voltage (*7) VOL 25℃ - - VSS+0.1 - - VSS+0.1 V RL=10[kΩ] Tr 25℃ - 50 - - 50 - ns CL=15pF 100mV over drive Output rise time Output fall time VDD-0.4 VSS+0.4 RL=10[kΩ] Tf 25℃ - 20 - - 20 - ns CL=15pF 100mV over drive Propagation delay L to H TPLH 25℃ - 1.7 - - 1.7 - µs CL=15pF 100mV over drive Propagation delay H to L TPHL 25℃ - 0.5 - - 0.5 - µs CL=15pF 100mV over drive (*5) Abusolute values (*6) Reference to power dissipation under the high temperature environment and decide the output current. Continuous short circuit is occurring the degenerate of output current characteristics. (*7) Full range BU7231,BU7232：Ta=-40[℃] to +85[℃] BU7231S,BU7232S：Ta=-40[℃] to +105[℃] 2/16 ●Example of electrical characteristics ○BU7251 family BU7251 family BU7251G 400 200 BU7251 family 60 50 600 SUPPLY CURRENT [µA] 600 BU7251 family 800 POWER DISSIPATION [mW] . POWER DISSIPATION [mW] . 800 BU7251SG 400 200 105℃ 40 85℃ 30 25℃ 20 10 -40℃ 0 0 50 100 AMBIENT TEMPERATURE [℃] 0 0 150 50 100 Fig.1 Fig.2 5.5V 20 3.0V 10 105℃ 4 85℃ 25℃ -40℃ 2 120 1 Fig.4 Supply Current – Ambient Temperature BU7251 family 30 105℃ 85℃ 20 10 25℃ -40℃ 2 3 4 5 SUPPLY VOLTAGE [V] 0 -60 5.5V 3.0V 1.8V 5.5V 20 1.8V 10 3.0V 0 30 60 90 BU7251 family 10 0 30 60 90 120 8 -40℃ 6 25℃ 4 85℃ 0.5 25 25℃ 15 105℃ 85℃ 10 5 AMBIENT TEMPERATURE [℃] Fig.10 Output Source Current – Ambient Temperature (VOUT=VDD-0.4[V]) (*) The above date is ability value of sample, it is not guaranteed. 0.5 1.0 1.5 1.5 2.0 2.5 3.0 Fig.9 Output Source Current – Supply Voltage (VDD=3[V]) -40℃ 20 1.0 OUTPUT VOLTAGE [V] BU7251 family 30 0.0 105℃ 2 0.0 (RL=10[kΩ]) 120 120 0 -30 0 -30 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] (RL=10[kΩ]) BU7251 family Fig.8 Output Voltage Low – Ambient Temperature OUTPUT SINK CURRENT [mA] OUTPUT SOURCE CURRENT [mA] 4 1 -60 AMBIENT TEMPERATURE [℃] BU7251 family 2 1.8V 2 (RL=10[kΩ]) (RL=10[kΩ]) 3 3.0V Fig.6 Output Voltage High – Ambient Temperature 0 -60 Fig.7 Output Voltage Low – Supply Voltage 5 5.5V 4 Fig.5 Output Voltage High – Supply Voltage 30 6 BU7251 family 6 6 40 0 1 3 4 5 SUPPLY VOLTAGE [V] OUTPUT SOURCE CURRENT [mA] 40 2 50 OUTPUT VOLTAGE LOW [mV] OUTPUT VOLTAGE LOW [mV] 50 6 0 0 -30 0 30 60 90 AM BIENT TEM PERATURE [℃] 3 4 5 SUPPLY VOLTAGE [V] 8 OUTPUT VOLTAGE HIGH [V] 30 BU7251 family 6 OUTPUT VOLTAGE HIGH [V] SUPPLY CURRENT [µA] 40 0 -60 2 Fig.3 Supply Current – Supply Voltage Derating Curve BU7251 family 1.8V 1 AMBIENT TEMPERATURE [℃] Derating Curve 50 150 2.0 2.5 3.0 OUTPUT VOLTAGE [V] BU7251 family 20 OUTPUT SINK CURRENT [mA] 0 15 5.5V 10 3.0V 1.8V 5 0 -60 -30 0 30 60 90 120 AMBIENT TEMPERATURE [℃] Fig.11 Output Sink Current – Output Voltage Fig.12 Output Sink Current – Ambient Temperature (VDD=3[V]) (VOUT=VSS+0.4[V]) BU7251G：－40[℃] to＋85[℃] 3/16 BU7251SG：－40[℃] to＋105[℃] ○BU7251 family BU7251 family 5.0 85℃ 2.5 105℃ 0.0 25℃ 7.5 INPUT OFFSET VOLTAGE [mV] -40℃ -2.5 -5.0 -7.5 -10.0 5.0 3.0V 2.5 0.0 5.5V -5.0 -7.5 -10.0 1 2 3 4 5 6 Fig.13 Input Offset Voltage – Supply Voltage 120 85℃ 100 -40℃ 80 25℃ 60 2 3 4 5 SUPPLY VOLTAGE [V] 3.0V 1.8V 100 5.5V 80 -60 80 3.0V 1.8V 60 40 20 0 -60 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 60 40 20 Fig.19 Common Mode Rejection Ratio – Ambient Temperature (VDD=3[V]) BU7251 family 100 25℃ 85℃ 80 -40℃ 105℃ 60 40 20 0 1 2 3 4 5 SUPPLY VOLTAGE [V] BU7251 family 2.0 1.5 1.8V 1.0 5.5V 3.0V 0.5 0.0 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] Fig.20 Power Supply Rejection – Ambient Temperature 120 -60 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] Fig.21 Propagation Delay L-H – Ambient Temperature BU7251 family 0.8 0.6 0.4 1.8V 0.2 5.5V 3.0V 0.0 -60 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 120 Fig.22 Propagation Delay H-L – Ambient Temperature (*) The above date is ability value of sample, it is not guaranteed. 6 (VDD=3[V]) 80 0 -60 4 Fig.18 Common Mode rejection Ratio – Supply Voltage 100 120 1 2 3 INPUT VOLTAGE [V] 120 120 BU7251 family 120 0 Fig.15 Input offset voltage – Input Voltage PROPAGATION DELAY L-H [µs] 5.5V -30 0 30 60 90 AMBIENT TEMPERATURE [℃] Fig.17 Large Signal Voltage Gain – Ambient Temperature POWER SUPPLY REJECTION RATIO [dB] 100 25℃ (VDD=3[V]) 120 Fig.16 Large Signal Voltage Gain – Supply Voltage 120 -40℃ -10 -1 BU7251 family 140 6 BU7251 family 105℃ -5 120 60 1 COMMON MODE REJECTION RATIO [dB] -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 160 LARGE SIGNAL VOLTAGE GAIN [dB] LARGE SIGNAL VOLTAGE GAIN [dB] 140 85℃ 0 (Vicm=VDD, Vout=0.1[V]) BU7251 family 105℃ 5 Fig.14 Input Offset Voltage – Ambient Temperature (Vicm=VDD, Vout=0.1[V]) 160 10 -15 -60 SUPPLY VOLTAGE [V] PROPAGATION DELAY H-L [µs] 1.8V -2.5 BU7251 family 15 COMMON MODE REJECTION RATIO [dB] INPUT OFFSET VOLTAGE [mV] 7.5 BU7251 family 10.0 INPUT OFFSET VOLTAGE [mV] 10.0 BU7251G：－40[℃] to＋85[℃] 4/16 BU7251SG：－40[℃] to＋105[℃] 120 ○BU7252 family POWER DISSIPATION [mV] POWER DISSIPATION [mV] 800 600 BU7252F BU7252FVM 400 200 0 0 85 50 100 AMBIENT TEMPERATURE [℃] . BU7252 family 1000 800 600 BU7252SF BU7252SFVM 400 200 0 150 0 105 50 100 AMBIENT TEMPERATURE [℃] . Fig.1 100 50 0 150 1 2 3 4 5 SUPPLY VOLTAGE [V] 6 Fig.3 Supply Current – Supply Voltage BU7252 family 8 25℃ -40℃ Derating Curve BU7252 family 105℃ 85℃ Fig.2 Derating Curve 150 BU7252 family 150 SUPPLY CURRENT [µA] BU7252 family 1000 BU7252 family 8 100 5.5V 3.0V 1.8V 50 0 105℃ 85℃ 4 25℃ -40℃ 2 0 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 1 40 30 105℃ 85℃ 20 10 25℃ 3 4 5 SUPPLY VOLTAGE [V] 40 5.5V 30 3.0V 20 10 1.8V -30 0 30 60 90 AMBIENT TEMPERATURE [℃] BU7252 family 3 3.0V 2 1.8V 1 0 -60 0 30 60 90 0 20 15 10 85℃ 105℃ 5 Fig.10 Output Source Current – Ambient Temperature (*) The above date is ability value of sample, it is not guaranteed. 1 1.5 2 2.5 3 Fig.9 Output Source Current – Output Voltage （VDD=3[V]) 25℃ AMBIENT TEMPERATURE [℃] 0.5 BU7252 family 20 -40℃ 25 120 85℃ 105℃ 2 OUTPUT VOLTAGE [V] 0 -30 4 120 BU7252 family 30 OUTPUT SINK CURRENT [mA] OUTPUT SOURCE CURRENT [mA] 5.5V 25℃ 6 (RL=10[kΩ]) (RL=10[kΩ]) 4 -40℃ Fig.8 Output Voltage Low – Ambient Temperature Fig.7 Output Voltage Low – Supply Voltage 5 8 0 -60 6 120 BU7252 family 10 OUTPUT SINK CURRENT [mA] 3 4 5 SUPPLY VOLTAGE [V] -30 0 30 60 90 AMBIENT TEMPERATURE [℃] Fig.6 Output Voltage High – Ambient Temperature 0 2 1.8V 2 (RL=10[kΩ]) -40℃ 1 3.0V -60 BU7252 family 50 0 4 6 (RL=10[kΩ]) OUTPUT VOLTAGE LOW [mV] 50 2 Fig.5 Output Voltage High – Supply Voltage Fig.4 Supply Curreny – Ambient Temperature BU7252 family 6 0 120 OUTPUT SOURCE CURRENT [mA] -60 OUTPUT VOLTAGE LOW [mV] OUTPUT VOLTAGE HIGH [V] OUTPUT VOLTAGE HIGH [V] SUPPLY CURRENT [µA] 5.5V 6 0.0 0.5 1.0 1.5 2.0 2.5 3.0 OUTPUT VOLTAGE [V] Fig.11 Output Sink Current – Output Voltage (VDD=3[V]) 15 5.5V 10 3.0V 1.8V 5 0 -60 -30 0 30 60 120 Fig.12 Output Sink Current – Ambient Temperature (VOUT=VSS+0.4[V]) BU7252 F/FVM：－40[℃] to＋85[℃] BU7252S F/FVM：－40[℃] to＋105[℃] 5/16 90 AMBIENT TEMPERATURE [℃] ○BU7252 family BU7252 family 5.0 2.5 25℃ -40℃ 0.0 -2.5 85℃ 7.5 INPUT OFFSET VOLTAGE [mV] 105℃ -5.0 -7.5 5.0 2.5 1.8V 0.0 -2.5 5.5V -5.0 -7.5 -10.0 -10.0 1 2 3 4 5 (Vicm=VDD,VOUT=0.1[V]) (Vicm=VDD,VOUT=0.1[V]) 105℃ 120 25℃ 100 85℃ 80 60 -40℃ 40 20 2 3 4 5 SUPPLY VOLTAGE [V] 140 120 1.8V 100 80 3.0V 60 5.5V 40 6 -60 5.5V 80 60 40 1.8V 3.0V 20 0 -60 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 85℃ -10 0 80 60 40 20 -30 0 30 60 90 BU7252 family 100 80 85℃ 105℃ 60 25℃ 40 -40℃ 20 0 1 2 3 4 5 SUPPLY VOLTAGE [V] 120 AMBIENT TEMPERATURE [℃] Fig.20 Power Supply Rejection Ratio – Ambient 1.5 1.8V 1.0 5.5V 0.5 3.0V 0.0 -60 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] PROPAGATION DELAY H-L [µs] 0.6 1.8V 3.0V 0.2 5.5V 0.0 -60 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 120 Fig.22 Propagation Delay H-L – Ambient Temperature (*) The above date is ability value of sample, it is not guaranteed. BU7252 F/FVM：－40[℃] to＋85[℃] BU7252S F/FVM：－40[℃] to＋105[℃] 6/16 120 Fig.21 Propagation Delay L-H – Ambient Temperature BU7251 family 0.4 6 BU7252 family 2.0 (VDD=3[V]) 0.8 4 Fig.18 Common Mode Rejection Ratio – Supply Voltage (VDD=3[V]) 100 0 -60 1 2 3 INPUT VOLTAGE [V] 120 120 BU7252 family 120 120 Fig.19 Common Mode Rejection – Ambient Temperature 105℃ Fig.15 Input Offset Voltage – Input Voltage PROPAGATION DELAY L-H [µs] POWER SUPPLY REJECTION RATIO [dB] BU7252 family 100 -5 Fig.17 Large Signal Voltage Gain – Ambient Temperature Fig.16 Large Signal Voltage Gain – Supply Voltage 120 0 (VDD=3[V]) 20 1 25℃ -1 BU7252 family 160 LARGE SIGNAL VOLTAGE GAIN [dB] 140 -40℃ 5 120 Fig.14 Input Offset Voltage – Ambient Temperature 160 LARGE SIGNAL VOLTAGE GAIN [dB] -30 0 30 60 90 AMBIENT TEMPERATURE [℃] Fig.13 Input Offset Voltage – Supply Voltage BU7252 family 10 -15 -60 6 SUPPLY VOLTAGE[V] COMMON MODE REJECTION RATIO [dB] 3.0V BU7252 family 15 COMMON MODE REJECTION RATIO [dB] INPUT OFFSET VOLTAGE [mV] 7.5 BU7252 family 10.0 INPUT OFFSET VOLTAGE [mV] 10.0 ○BU7231 series BU7231 family BU7231G 400 200 BU7231 family 20 16 600 SUPPLY CURRENT [µA] 600 BU7231 family 800 POWER DISSIPATION [mW] . POWER DISSIPATION [mW] . 800 BU7231SG 400 200 12 105℃ 85℃ 8 25℃ 4 -40℃ 0 0 0 0 85 100 50 AMBIENT TEMPERATURE [℃] 0 150 50 100 105 Fig.1 Derating Curve BU7231 family 8 6 3.0V 1.8V 2 -60 -30 0 30 60 90 AM BIENT TEM PERATURE [℃] 105℃ 4 85℃ 25℃ -40℃ 2 1 Fig.4 Supply Current – Ambient Temperature BU7231 family 40 30 105℃ 85℃ 20 25℃ 10 -40℃ 2 4 6 SUPPLY VOLTAGE [V] 3 4 5 SUPPLY VOLTAGE [V] BU7231 family 5.5V 20 1.8V 10 3.0V 0 -60 0 30 60 90 0 -60 3.0V 1.8V 30 60 25℃ 4 85℃ 90 25 -40℃ 25℃ 20 15 105℃ 10 85℃ 5 120 AMBIENT TEMPERATURE [℃] Fig.10 Output Source Current – Ambient Temperature (VOUT=VDD-0.4[V]) (*) The above date is ability value of sample, it is not guaranteed. 0.0 105℃ 2 0.5 1.0 1.5 2.0 2.5 0.5 1 1.5 2 2.5 3 OUTPUT VOLTAGE [V] 0 0 -40℃ 6 0 Fig.9 Output Source Current – Output Voltage (VDD=3[V]) 3.0 OUTPUT VOLTAGE [V] BU7231 family 20 OUTPUT SINK CURRENT [mA] 5.5V -30 8 120 BU7231 family 30 OUTPUT SINK CURRENT [mA] OUTPUT SOURCE CURRENT [mA] 4 120 BU7231 family 10 AMBIENT TEMPERATURE [℃] BU7231 family -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 0 -30 (RL=10[kΩ]) 1 -60 (RL=10[kΩ]) (RL=10[kΩ]) 2 1.8V 2 (RL=10[kΩ]) Fig.8 Output Voltage Low – Ambient Temperature 3 3.0V Fig.6 Output Voltage High – Ambient Temperature Fig.7 Output Voltage Low – Supply Voltage 5 5.5V 4 Fig.5 Output Voltage – Supply Voltage 30 8 BU7231 family 6 6 40 0 0 2 50 OUTPUT VOLTAGE LOW [mV] OUTPUT VOLTAGE LOW [mV] 50 6 0 0 120 OUTPUT SOURCE CURRENT [mA] 5.5V 3 4 5 SUPPLY VOLTAGE [V] 8 OUTPUT VOLTAGE HIGH [V] OUTPUT VOLTAGE HIGH [V] 10 SUPPLY CURRENT [µA] BU7231 family 6 4 2 Fig.3 Supply Current – Supply Voltage Fig.2 Derating Curve 12 1 150 AMBIENT TEMPERATURE [℃] 15 5.5V 10 5 0 -60 3.0V 1.8V -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 120 Fig.11 Output Sink Current – Output Voltage Fig.12 Output Sink Current – Ambient Temperature (VDD=3[V]) (VOUT=VSS+0.4[V]) BU7231G：－40[℃] to＋85[℃] 7/16 BU7231SG：－40[℃] to＋105[℃] ○BU7231 series BU7231 family 5.0 -40℃ 2.5 25℃ 0.0 105℃ -2.5 7.5 INPUT OFFSET VOLTAGE [mV] 7.5 85℃ -5.0 -7.5 -10.0 5.0 3.0V 2.5 1.8V 0.0 5.5V -2.5 -5.0 -7.5 -10.0 1 2 3 4 5 6 SUPPLY VOLTAGE [V] 120 100 85℃ -40℃ 25℃ 80 60 2 3 4 5 SUPPLY VOLTAGE [V] 1.8V 120 100 3.0V 80 5.5V -60 80 3.0V 1.8V 40 20 0 -60 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 1 2 3 INPUT VOLTAGE [V] -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 100 80 60 80 60 40 20 Fig.19 Common Mode Rejection Ratio – Ambient Temperature (VDD=3[V]) 0 -60 105℃ 25℃ -40℃ 20 0 1 2 3 4 5 SUPPLY VOLTAGE [V] BU7231 family 5 4 3 5.5V 3.0V 2 1.8V 1 0 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 120 Fig.20 Power Supply Rejection Ratio – Ambient Temperature -60 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] Fig.21 Propagation Delay L-H – Ambient Temperature BU7231 family 1.5 1.2 0.9 5.5V 0.6 1.8V 3.0V 0.3 0.0 -60 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 120 Fig.22 Propagation Delay H-L – Ambient Temperature (*) The above date is ability value of sample, it is not guaranteed. 6 Fig.18 Common Mode Rejection Ratio – Supply Voltage (VDD=3[V]) 100 120 85℃ 40 120 BU7231 family 120 4 BU7231 family 120 PROPAGATION DELAY L-H [µs] 5.5V 60 0 Fig.15 Input Offset Voltage – Input Voltage Fig.17 Large Signal Voltage Gain – Ambient Temperature POWER SUPPLY REJECTION RATIO [dB] COMMON MODE REJECTION RATIO [dB] 100 25℃ (VDD=3[V]) 140 6 BU7231 family -40℃ -10 -1 BU7231 family Fig.16 Large Signal Voltage Gain – Supply Voltage 120 105℃ -5 120 60 1 PROPAGATION DELAY H-L [µs] -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 160 LARGE SIGNAL VOLTAGE GAIN [dB] LARGE SIGNAL VOLTAGE GAIN [dB] 140 85℃ 0 (Vicm=VDD, Vout=0.1[V]) BU7231 family 105℃ 5 Fig.14 Input Offset Voltage – Ambient Temperature (Vicm=VDD, Vout=0.1[V]) 160 10 -15 -60 Fig.13 Input Offset Voltage – Supply Voltage BU7231 family 15 COMMON MODE REJECTION RATIO [dB] INPUT OFFSET VOLTAGE [mV] BU7231 family 10.0 INPUT OFFSET VOLTAGE [mV] 10.0 BU7231G：－40[℃] to＋85[℃] 8/16 BU7231SG：－40[℃] to＋105[℃] 120 ○BU7232 family POWER DISSIPATION [mV] 600 BU7232F BU7232FVM 400 200 0 0 40 800 600 BU7232SF BU7232SFVM 400 200 0 150 50 100105 AMBIENT TEMPERATURE [℃] . Fig.1 OUTPUT VOLTAGE HIGH [V] SUPPLY CURRENT [µA] 30 5.5V 3.0V 1.8V 10 0 10 1 2 6 105℃ 85℃ 4 25℃ -40℃ 2 120 BU7232 family 8 5.5V 6 4 3.0V 1.5V 2 2 3 4 5 6 SUPPLY VOLTAGE [V] -60 7 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] BU7232 family (RL=10[kΩ]) 105℃ 30 85℃ 20 10 25℃ -40℃ 40 30 20 10 1.8V 0 0 2 3 4 5 SUPPLY VOLTAGE [V] 6 Fig.7 Output Voltage Low – Supply Voltage -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 3.0V 2 1.8V 1 0 30 60 90 85℃ 105℃ 2 0 0.5 1 1.5 2 2.5 3 OUTPUT VOLTAGE [V] Fig.9 Output Source Current – Output Voltage BU7232 family 20 -40℃ 25℃ 20 105℃ 85℃ 10 0 0 -30 4 120 BU7232 family 30 OUTPUT SINK CURRENT [mA] 5.5V 3 -60 25℃ 6 (RL=10[kΩ]) BU7232 family 4 -40℃ Fig.8 Output Voltage Low – Ambient temperature (RL=10[kΩ]) 5 8 0 -60 7 OUTPUT SINK CURRENT [mA] 1 OUTPUT SOURCE CURRENT [mA] 5.5V 3.0V BU7232 family 10 OUTPUT SOURCE CURRENT [mA] OUTPUT VOLTAGE LOW [mV] OUTPUT VOLTAGE LOW [mV] 40 BU7232 family 50 120 Fig.6 Output Voltage – Ambient Temperature Fig.5 Output Voltage High – Supply Voltage (RL=10[kΩ]) 50 6 0 1 Fig.4 Supply Current – Ambient Temperature 3 4 5 SUPPLY VOLTAGE [V] Fig.3 Supply Current – Supply Voltage 0 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 25℃ -40℃ 150 BU7232 family 8 40 -60 20 Derating Curve BU7232 family 20 105℃ 85℃ Fig.2 Derating Curve 50 30 0 0 85 50 100 AMBIENT TEMPERATURE [℃] . BU7232 family 50 OUTPUT VOLTAGE HIGH [V] POWER DISSIPATION [mV] 800 BU7232 family 1000 SUPPLY CURRENT [µA] BU7232 family 1000 120 AMBIENT TEMPERATURE [℃] Fig.10 Output Source Current – Ambient Temperature (VOUT=VDD-0.4[V]) (*) The above date is ability value of sample, it is not guaranteed. 15 5.5V 10 5 3.0V 1.8V 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 OUTPUT VOLTAGE [V] Fig.11 Output Sink Current – Output Voltage (VDD=3[V]) -60 -30 0 30 60 120 Fig.12 Output Sink Current – Ambient Temperature (VOUT=VSS+0.4[V]) BU7232 F/FVM：－40[℃] to＋85[℃] BU7232S F/FVM：－40[℃] to＋105[℃] 9/16 90 AMBIENT TEMPERATURE [℃] ○BU7232 family BU7232 family 5.0 2.5 85℃ 25℃ -40℃ 0.0 -2.5 105℃ -5.0 -7.5 -10.0 5.0 2.5 1.8V 2 3 4 5 AMBIENT TEMPERATURE [℃] 0.0 -2.5 5.5V -5.0 -7.5 6 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] (Vicm=VDD, VOUT=0.1[V]) (Vicm=VDD, VOUT=0.1[V]) 100 85℃ 105℃ 80 -40℃ 25℃ -10 1 2 3 4 5 SUPPLY VOLTAGE [V] 140 120 1.8V 100 5.5V 80 3.0V -60 6 80 5.5V 60 40 1.8V 3.0V 20 0 -60 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 120 BU7232 family 80 105℃ 60 40 25℃ 0 1 2 3 4 5 SUPPLY VOLTAGE [V] 60 40 20 BU7232 family 5 4 5.5V 3 3.0V 2 1 1.8V 0 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] Fig.20 Power Supply Rejection Ratio – Ambient Temperature 120 -60 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 1.2 5.5V 0.9 1.8V 0.6 0.3 3.0V 0.0 -60 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 120 Fig.22 Propagation Delay H-L – Ambient Temperature (*) The above date is ability value of sample, it is not guaranteed. BU7232 F/FVM：－40[℃] to＋85[℃] BU7232S F/FVM：－40[℃] to＋105[℃] 10/16 120 Fig.21 Propagation Delay L-H – Ambient temperature BU7232 family 1.5 6 Fig.18 Common Mode Rejection Ratio – Supply Voltage (VDD=3[V]) 80 Fig.19 Common Mode Rejection Ratio – Ambient Temperature (VDD=3[V]) -40℃ 20 120 100 0 -60 4 100 BU7232 family 120 1 2 3 INPUT VOLTAGE [V] 120 PROPAGATION DELAY L-H [µs] POWER SUPPLY REJECTION RATIO [dB] BU7232 family 100 -30 0 30 60 90 AMBIENT TEMPERATURE [℃] 0 Fig.15 Input Offset Voltage – Input Voltage Fig.17 Large Signal Voltage Gain – Ambient Temperature Fig.16 Large Signal Voltage Gain – Supply Voltage 120 -1 (VDD=3[V]) 60 60 85℃ -5 BU7232 family 160 LARGE SIGNAL VOLTAGE GAIN [dB] 25℃ 120 105℃ 0 COMMON MODE REJECTION RATIO [dB] BU7232 family -40℃ 5 120 Fig.14 Input Offset Voltage – Ambient Temperature 140 COMMON MODE REJECTION RATIO [dB] 10 -15 -60 Fig.13 Input Offset Voltage – Ambient Temperature 160 PROPAGATION DELAY H-L [us] 3.0V BU7232 family 15 -10.0 1 LARGE SIGNAL VOLTAGE GAIN [dB] 7.5 INPUT OFFSET VOLTAGE [mV] INPUT OFFSET VOLTAGE [mV] 7.5 BU7232 family 10.0 INPUT OFFSET VOLTAGE [mV] 10.0 ● Schematic diagram Fig.1 Simplified schematic ● Test circuit1 NULL method VDD,VSS,EK,Vicm, Unit : [V] Parameter Input offset voltage Large signal voltage gain Common-mode rejection ratio (Input common-mode voltage range) Power supply rejection ratio VF S1 S2 S3 VF1 ON ON OFF VF2 VF3 VF4 VF5 VF6 VF7 VDD VSS 3 0 Vicm -0.1 0.3 1 0.3 2 -0.3 ON ON ON 3 0 ON ON OFF 3 0 -0.1 ON ON OFF 0 -0.1 －Calculation－ 1. Input offset Voltage (Vio) Vio = |VF1| 1+Rf/Rs 1.8 5.5 Calculation EK -2.7 0 3 3 0.3 4 [V] 2. Large signal voltage gain (Av) 3. Common-mode rejection ratio (CMRR) 4. Power supply rejection ratio (PSRR) 0.47[µF] Rf 50[kΩ] S1 0.1[uF] RK EK VDD 500[kΩ] 0.01[µF] RS＝ 50[Ω] Ri＝ 1[MΩ] Vicm Ri＝ 1[MΩ] RS＝ 50[Ω] 0.1[uF] +15[V] 500[kΩ] DUT RK VSS S3 RL S2 50[kΩ] Fig.2 Test Circuit 1 (one channel only) 11/16 NULL -15[V] VF ●Test circuit2 switch condition Unit : [V] SW No. SW 1 SW 2 SW 3 SW 4 supply current OFF maximum output voltage RL=10 [kΩ] OFF ON ON OFF OFF OFF OFF OFF ON ON ON output current OFF OFF OFF OFF OFF ON response time ON OFF OFF OFF ON SW 5 SW 6 SW 7 OFF OFF OFF ON SW 8 ON OFF OFF OFF ON VDD=3[V] － ＋ SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8 GND RL VIN- CL VIN+ Vo Fig3. Test circuit2 (one channel only) V IN [V] V IN Input Wave 入力波形 [V] 1.6[V] Input Wave 入力波形 1.6[V] 100mV over drive Vref=1.5[V] Vref=1.5[V] 100mV over drive 1.4[V] 1.4[V] V OUT [V] t V OUT [V] Output Wave 出力波形 3[V] Output Wave 出力波形 3[V] 1.5[V] 0[V] 1.5[V] 0[V] t TPHL t TPLH Fig4. Slew rate 12/16 ● Description of electrical characteristics Described here are the terms of electric characteristics used in this technical note. Items and symbols used are also shown. Note that item name and symbol and their meaning may differ from those on another manufacture’s document or general document. 1. Absolute maximum ratings Absolute maximum rating item indicates the condition which must not be exceeded. Application of voltage in excess of absolute Maximum rating or use out of absolute maximum rated temperature environment may cause deterioration of characteristics. 1.1 Power supply voltage（VDD/VSS） Indicates the maximum voltage that can be applied between the positive power supply terminal and negative power supply terminal without deterioration or destruction of characteristics of internal circuit. 1.2 Differential input voltage （Vid） Indicates the maximum voltage that can be applied between non-inverting terminal and inverting terminal without deterioration and destruction of characteristics of IC. 1.3 Input common-mode voltage range （Vicm） Indicates the maximum voltage that can be applied to non-inverting terminal and inverting terminal without deterioration or destruction of characteristics. Input common-mode voltage range of the maximum ratings not assure normal operation of IC. When normal operation of IC is desired, the input common-mode voltage of characteristics item must be followed. 1.4 Power dissipation （Pd） Indicates the power that can be consumed by specified mounted board at the ambient temperature 25℃(normal temperature). As for package product, Pd is determined by the temperature that can be permitted by IC chip in the package（maximum junction temperature） and thermal resistance of the package 2. Electrical characteristics item 2.1 Input offset voltage （Vio） Indicates the voltage difference between non-inverting terminal and inverting terminal. It can be translated into the input voltage difference required for setting the output voltage at 0 [V] 2.2 Input offset current （Iio） Indicates the difference of input bias current between non-inverting terminal and inverting terminal. 2.3 Input bias current （Ib） Indicates the current that flows into or out of the input terminal. It is defined by the average of input bias current at non-inverting terminal and input bias current at inverting terminal. 2.4 Input common-mode voltage range （Vicm） Indicates the input voltage range where IC operates normally. 2.5 Large signal voltage gain （AV） Indicates the amplifying rate (gain) of output voltage against the voltage difference between non-inverting terminal and inverting terminal. It is normally the amplifying rate (gain) with reference to DC voltage. Av = (Output voltage fluctuation) / (Input offset fluctuation) 2.6 Circuit current （ICC） Indicates the IC current that flows under specified conditions and no-load steady status. 2.7 Output sink current （OL） Indicates the maximum current that can be output under specified output condition (such as output voltage and load condition). 2.8 Output saturation voltage, Low level output voltage （VOL） Indicates the voltage range that can be output under specified load conditions. 2.9 Output leakage current, High level output current（I leak） Indicates the current that flows into IC under specified input and output conditions. 2.10 Response Time （Tre） The interval between the application of an input and output condition. 2.11 Common-mode rejection ratio （CMRR） Indicates the ratio of fluctuation of input offset voltage when in-phase input voltage is changed. It is normally the fluctuation of DC. CMRR ＝（Change of Input common-mode voltage）/（Input offset fluctuation） 2.12 Power supply rejection ratio （PSRR） Indicates the ratio of fluctuation of input offset voltage when supply voltage is changed. It is normally the fluctuation of DC. PSRR＝（Change of power supply voltage）/（Input offset fluctuation） 13/16 ● Derating curve Power dissipation (total loss) indicates the power that can be consumed by IC at Ta=25℃(normal temperature).IC is heated when it consumed power, and the temperature of IC ship becomes higher than ambient temperature. The temperature that can be accepted by IC chip depends on circuit configuration, manufacturing process, and consumable power is limited. Power dissipation is determined by the temperature allowed in IC chip (maximum junction temperature) and thermal resistance of package (heat dissipation capability). The maximum junction temperature is typically equal to the maximum value in the storage package (heat dissipation capability). The maximum junction temperature is typically equal to the maximum value in the storage temperature range. Heat generated by consumed power of IC radiates from the mold resin or lead frame of the package. The parameter which indicates this heat dissipation capability (hardness of heat release) is called thermal resistance, represented by the symbol θj-a[℃/W]. The temperature of IC inside the package can be estimated by this thermal resistance. Fig.6 (a) shows the model of thermal resistance of the package. Thermal resistance θja, ambient temperature Ta, junction temperature Tj, and power dissipation Pd can be calculated by the equation below : θja ＝ (Tj－Ta) / Pd [℃/W] ・・・・・ （Ⅰ） Derating curve in Fig.6 (b) indicates power that can be consumed by IC with reference to ambient temperature. Power that can be consumed by IC begins to attenuate at certain ambient temperature. This gradient is determined by thermal resistance θja. Thermal resistance θja depends on chip size, power consumption, package, ambient temperature, package condition, wind velocity, etc even when the same of package is used. Thermal reduction curve indicates a reference value measured at a specified condition. Fig7(c)-(f) show a derating curve for an example of BU7251family, BU7252 family, BU7231 family, BU7232 family. Power dissipation Pd:[W] LSIの消費電力[W] Pd(max) θja = ( Tj ー Ta ) / Pd [℃/W] P2 θja2 < θja1 Ambient temperature Ta [℃] θja2 P1 Tj(max) θja1 Chip surface temperature Tj [℃] 0 Power dissipation P [W] 25 50 75 Ambient temperature:Ta[℃] 周囲温度Ta[℃] 100 125 BU7251/BU7231 T j(max) (b) Derating curve (a) Thermal resistance Fig6. Thermal resistance and power dissipation 1000 POWER DISSIPATION [mW] . POWER DISSIPATION [mW] . 800 600 540[mw] BU7251G(*8) BU7231G(*8) 400 200 0 800 620[mw] 600 480[mw] BU7252FVM(*10) BU7232FVM(*10) 400 200 0 0 50 85 100 150 0 AMBIENT TEMPERATURE [℃] (c) BU7251G (d) BU7252F/FVM BU7231G 600 540[mw] POWER DISSIPATION [mW] . POWER DISSIPATION [mW] . 100 85 150 BU7232F/FVM 1000 BU7251SG(*8) BU7231SG(*8) 400 200 800 620[mw] BU7252SF(*9) BU7232SF(*9) 480[mw] BU7252SFVM(*10) BU7232SFVM(*10) 600 400 200 0 0 0 50 100 105 0 150 (e) BU7251SG （*9） （*10） 6.2 4.8 105 100 50 BU7231SG (f) BU7252S F/FVM BU72432S F/FVM Unit [mW/℃] When using the unit above Ta=25[℃], subtract the value above per degree[℃]. Permissible dissipation is the value when FR4 glass epoxy board 70[mm]×70[mm]×1.6[mm] (cooper foil area below 3[％]) is mounted. Fig7. 150 AMBIENT TEMPERATURE [℃] AMBIENT TEMPERATURE [℃] 5.4 50 AMBIENT TEMPERATURE [℃] 800 （*8） BU7252F(*9) BU7232F(*9) Derating curve 14/16 150 ● Cautions on use 1) Absolute maximum ratings Absolute maximum ratings are the values which indicate the limits, within which the given voltage range can be safely charged to the terminal. However, it does not guarantee the circuit operation. 2) Applied voltage to the input terminal For normal circuit operation of voltage comparator, please input voltage for its input terminal within input common mode voltage VDD+0.3[V]. Then, regardless of power supply voltage,VSS-0.3[V] can be applied to input terminals without deterioration or destruction of its characteristics. 3) Operating power supply (split power supply/single power supply) The voltage comparator operates if a given level of voltage is applied between VDD and VSS. Therefore, the operational amplifier can be operated under single power supply or split power supply. 4) Power dissipation (pd) If the IC is used under excessive power dissipation. An increase in the chip temperature will cause deterioration of the radical characteristics of IC. For example, reduction of current capability. Take consideration of the effective power dissipation and thermal design with a sufficient margin. Pd is reference to the provided power dissipation curve. 5) Short circuits between pins and incorrect mounting Short circuits between pins and incorrect mounting when mounting the IC on a printed circuits board, take notice of the direction and positioning of the IC. If IC is mounted erroneously, It may be damaged. Also, when a foreign object is inserted between output, between output and VDD terminal or VSS terminal which causes short circuit, the IC may be damaged. 6) Using under strong electromagnetic field Be careful when using the IC under strong electromagnetic field because it may malfunction. 7) Usage of IC When stress is applied to the IC through warp of the printed circuit board, The characteristics may fluctuate due to the piezo effect. Be careful of the warp of the printed circuit board. 8) Testing IC on the set board When testing IC on the set board, in cases where the capacitor is connected to the low impedance, make sure to discharge per fabrication because there is a possibility that IC may be damaged by stress. When removing IC from the set board, it is essential to cut supply voltage. As a countermeasure against the static electricity, observe proper grounding during fabrication process and take due care when carrying and storage it. 9) The IC destruction caused by capacitive load The transistors in circuits may be damaged when VDD terminal and VSS terminal is shorted with the charged output terminal capacitor.When IC is used as a operational amplifier or as an application circuit, where oscillation is not activated by an output capacitor,the output capacitor must be kept below 0.1[μF] in order to prevent the damage mentioned above. 10) Decupling capacitor Insert the deculing capacitance between VDD and VSS, for stable operation of operational amplifier. 11) Latch up Be careful of input vltage that exceed the VDD and VSS. When CMOS device have sometimes occur latch up operation. And protect the IC from abnormaly noise 15/16 ● Dimensions SSOP5 SOP8 MSOP8 ● Model number construction ・Specify the product by the model number when placing an order. ・Make sure of the combinations of items. ・Start with the leftmost space without leaving any empty space between characters. B U 7 2 5 2 S F ROHM ・BU7251 ・BU7231 ・BU7252 ・BU7232 Package type BU7251S BU7231S BU7252S BU7232S Packing specification name Quantity SSOP5 TR 3000 Embossed carrier tape X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Direction of feed 1Pin Reel X X X X X X X X X X X X X X 1Pin Reel 16/16 1234 X X X X X X X 1234 3000 1234 TR １，２ 1Pin Reel MSOP8 1234 1234 2500 1234 E2 1234 SOP8 Direction of feed X X X X XX X E 2 E2 Embossed tape on reel with pin 1 near far when pulled out TR Embossed tape on reel with pin 1 near far when pulled out ・G : SSOP5 ・F : SOP8 ・FVM : MSOP8 Packing specification reference Package - X X X X XX X Direction of feed Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of which would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the NOTES specified in this catalog. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact your nearest sales office. ROHM Customer Support System www.rohm.com Copyright © 2007 ROHM CO.,LTD. THE AMERICAS / EUPOPE / ASIA / JAPAN Contact us : webmaster@ rohm.co. jp 21, Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan TEL : +81-75-311-2121 FAX : +81-75-315-0172 Appendix1-Rev2.0