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TA7522SG/FG
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TA7522SG,TA7522FG
Dual Voltage Comparator
The TA7522SG is an easy-to-use IC incorporating two voltage comparator circuits. Since one channel has an inverted-output buffer, a CR oscillator can be easily built up. The TA7522FG is in 8-pin dual inline package. The IC incorporating two-circuit package. It does not contain an inverted buffer output. In addition, the TA7522SG/FG have a wide operating temperature range that allows it to be used in a wide variety of applications.
TA7522SG
Features
• • • • • • • • • • • • Two-circuit package High gain: 95dB (typ.) Single 3 V power supply for operation Inverted-output also available: TA7522SG only 0 V input causes action in the IC with a single power supply. Wide common-mode input range No latch-up Operating temperature range: −40 to 85°C Open-collector output SIP-9 pin (TA7522SG) SOP-8 pin (TA7522FG) Lead(Pb)-Free product
TA7522FG
Weight SIP9-P-2.54A: 0.92 g (typ.) SOP8-P-225-1.27: 0.08 g (typ.)
About solderability, following conditions were confirmed • Solderability (1) Use of Sn-37Pb solder Bath · solder bath temperature = 230°C · dipping time = 5 seconds · the number of times = once · use of R-type flux (2) Use of Sn-3.0Ag-0.5Cu solder Bath · solder bath temperature = 245°C · dipping time = 5 seconds · the number of times = once · use of R-type flux
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TA7522SG/FG
Block Diagram and Pin Layout
TA7522SG
TA7522FG
Note 1: The TA7522SG and TA7522FG are the same chip housed in different packages. Note 2: Some functional blocks, circuits, or constants are omitted or simplified in the block diagram to clarify the descriptions of the relevant features.
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TA7522SG/FG
Pin Description
Pin No. TA7522SG 1 2 3 4
5 6 7 8 9
Symbol 1 2 3 ⎯
4 5 6 7 8
Description Inverted-input pin Non-inverted-input pin Output pin corresponding to INPUT1
Output pin for inversion of OUT1 Grounded Output pin corresponding to INPUT2
+ −
TA7522FG INPUT1− INPUT1 OUT1
OUT1 GND OUT2 INPUT2 INPUT2 VCC
+
Non-inverted-input pin Inverted-input pin Power supply pin
Absolute Maximum Ratings (Ta = 25°C)
Characteristics Supply voltage Supply voltage surge Power dissipation Differential input voltage Input voltage Output current Operating temperature Storage temperature Symbol VCC VCC SURGE PD DVIN VIN ISINK Topr Tstg Rating Unit V V mW V V mA °C °C
−0.3 to 18 +30 (within 1 sec)
500/440
±18 −0.3 to 18
30
−40 to 85 −55 to 150
Note 1: The absolute maximum ratings of a semiconductor device are a set of specified parameter values which must not be exceeded during operation, even for an instant. If any of these levels is exceeded during operation, the device’s electrical characteristics may be irreparably altered and the reliability and lifetime of the device can no longer be guaranteed, possibly causing damage to any other equipment with which it is used. Applications using the device should be designed such that the absolute maximum ratings will never be exceeded in any operating conditions. Ensuring that the parameter values remain within these specified ranges during device operation will help to ensure that the integrity of the device is not compromised. Note 2: PD: TA7522SG/TA7522FG
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TA7522SG/FG
Electrical Characteristics (unless otherwise specified, Ta = −40 to 85°C)
Characteristics Voltage gain Input offset voltage Input bias current Input offset current Symbol GV VIO II IIO CMVIL Common-mode input voltage CMVIH OUT1 OUT2 Zero output voltage VOL OUT1 OUT1 OUT1 OUT2 OUT1 Current consumption ICC 5 4 Test Circuit 1 2 3 3 Test Condition VCC = 6 V, RL = 1 kΩ f = 10 Hz VCC = 6 V, RL = 1 kΩ CMVIN = 3 V VCC = 6 V, CMVIN = 3 V VCC = 6 V, CMVIN = 3 V VCC = 6.5 V, RL = 1 kΩ VIO = 20 mV VCC = 6.5 V, RL = 1 kΩ VIO = 20 mV VCC = 5.5 V, VIN = 0.1 V IOL = 10 mA VCC = 5.5 V, VIN = 0.1 V, IOL = 15 mA, VOL (OUT1) ≥ 2 V VCC = 6 V, VOUT = 30 V VCC = 6 V, VOUT = 0.4 V VCC = 6.5 V, RL = ∞ Min 60 Typ. 95 2 Max Unit dB mV
⎯
10
⎯ ⎯ ⎯ ⎯
5.0
−0.2
0.02
−2
0.3 0
µA µA
V V V V
−0.5
5.3 0.18 0.25
⎯
0.4 0.4
⎯ ⎯ ⎯ ⎯ ⎯
6 6 7
Output leakage current
ILEAK
⎯ −1.5
3
10
µA µA
mA
−10
7
Note: An ambient temperature of 25°C is assumed for the typical values.
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TA7522SG/FG
Test Circuit
(Below are examples for the TA7522SG. Note that, for the TA7522FG, pin numbers are different.) 1. GV
G V = 20 l og VOUT + 80 (dB) VIN
2. VIO
VIO = VOUT 100
3. II, IIO
I IO = I I − − I I +
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TA7522SG/FG
4. CMVIL, CMVIH
CMVIL: Input voltage relative to pin 5 as it is obtained when VIN is decreased until output VOUT becomes ±2 V. Input voltage relative to pin 5 as it is obtained when VIN is increased until output VOUT becomes ±2 V.
CMVIH:
5. VOL
5.1 OUT1, OUT2
5.2
OUT1
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TA7522SG/FG
OUT1, OUT2
6. ILEAK
6.1
6.2
OUT1
6.3
OUT1
7. ICC.