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| 型号： | TC7126CKW713 |
| 厂商： | Microchip Technology |
| 文件页数： | 5/26页 |
| 文件大小： | 0K |
| 描述： | IC ADC 3 1/2DGT LCD DVR 44-MQFP |
| 标准包装： | 900 |
| 显示器类型： | LCD |
| 配置： | 7 段显示 |
| 数字或字符： | A/D，3.5 位数字 |
| 电流 - 电源： | 55µA |
| 电源电压： | 9V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-QFP |
| 供应商设备封装： | 44-MQFP（10x10） |
| 包装： | 带卷 (TR) |
TC7126/A
1.0
ELECTRICAL
*Stresses above those listed under “Absolute
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage (V+ to V-)....................................... 15V
Analog Input Voltage (either Input) (Note 1) ... V+ to V-
Reference Input Voltage (either Input) ............ V+ to V-
Clock Input ................................................... Test to V+
Package Power Dissipation (T A ≤ 70°C) (Note 2) :
44-Pin PQFP............................................... 1.00W
40-Pin PLCC ............................................... 1.23W
44-Pin PDIP ................................................ 1.23W
Operating Temperature Range:
C (Commercial) Devices .................. 0°C to +70°C
I (Industrial) Devices .................... -25°C to +85°C
Storage Temperature Range.............. -65°C to +150°C
Maximum Ratings” may cause permanent damage to
the device. These are stress ratings only and functional
operation of the device at these or any other conditions
above those indicated in the operation sections of the
specifications is not implied. Exposure to Absolute
Maximum Rating conditions for extended periods may
affect device reliability.
TABLE 1-1:
TC7126/A ELECTRICAL SPECIFICATIONS
Electrical Characteristics: V S = +9V, f CLK – 16kHz, and T A = +25°C, unless otherwise noted.
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
Input
Z IR
Zero Input Reading
-000.0
±000.0
+000.0
Digital
V IN = 0V
Reading
Full Scale = 200mV
Z RD
Zero Reading Drift
Ratiometric Reading
—
999
0.2
999/1000
1
1000
μ V/°C
Digital
V IN = 0V, 0°C ≤ T A ≤ +70°C
V IN = V REF , V REF = 100mV
Reading
NL
Linearity Error
-1
±0.2
1
Count
Full Scale = 200mV or 2V
Max Deviation From Best Fit
Straight Line
Rollover Error
-1
±0.2
1
Count
V IN - = V IN + ≈ 200mV
e N
I L
CMRR
Noise
Input Leakage Current
Common Mode Rejection Ratio
—
—
—
15
1
50
—
10
—
μ V P-P
pA
μ V/V
V IN = 0V, Full Scale = 200mV
V IN = 0V
V CM = ±1V, V IN = 0V
Full Scale = 200mV
Scale Factor Temperature
—
1
5
ppm/°C
V IN = 199mV, 0°C ≤ T A ≤ +70°C
Coefficient
Analog Common
Ext. Ref. Temp Coeff. = 0ppm/°C
V CTC
Analog Common Temperature
Coefficient
—
—
—
—
—
—
—
80
35
35
—
—
—
75
100
—
—
ppm/°C
ppm/°C
ppm/°C
250k Ω Between Common and V+
0°C ≤ T A ≤ +70°C (“C” Devices)
TC7126
TC7126A
-25°C ≤ T A ≤ +85°C (“I” Device)
(TC7126A)
Note 1:
2:
3:
4:
Input voltages may exceed the supply voltages, provided the input current is limited to ±100 μ A.
Dissipation rating assumes device is mounted with all leads soldered to printed circuit board.
Refer to “Differential Input” discussion.
Backplane drive is in phase with segment drive for “OFF” segment, 180° out of phase for “ON” segment. Frequency is
20 times conversion rate. Average DC component is less than 50mV.
5: See “Typical Application”.
6: During Auto-Zero phase, current is 10-20 μ A higher. A 48kHz ocillator increases current by 8 μ A (Typical). Common
current is not included.
? 2006 Microchip Technology Inc.
DS21458C-page 5
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