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| 型号： | PGA308AIDGSTG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO10 |
| 封装： | GREEN, PLASTIC, MSOP-10 |
| 文件页数： | 26/29页 |
| 文件大小： | 962K |
| 代理商： | PGA308AIDGSTG4 |
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SBOS440B – JULY 2008 – REVISED DECEMBER 2010
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.
At TA = +25°C, VS = +5V, GND = 0V, DOUT/VCLAMP = +5V, and VREF = +5V, unless otherwise noted.
PGA308
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
VREF
Input Range
1.8
VS
V
Input Resistance
43
k
Digital Interface
One-Wire
Serial speed baud rate
4.8k
114k
bits/s
Logic Levels
Logic Levels (1W pin)
Low
0.8
V
High
2.0
V
Hysteresis
100
mV
Output Low Level (1W pin)
Open drain, ISINK = 4mA
0.4
V
Output Levels (DOUT/VCLAMP)
Low, DOUT mode selected, ISINK = 4mA and VS = +4.5V, or
0.4
V
ISINK = 2mA and VS = +2.7V
High, DOUT mode selected, ISOURCE = 4mA and VS = +4.5V,
VS – 0.4
V
or
ISOURCE = 2mA and VS = +2.7V
POWER SUPPLY
Supply Voltage
VS
2.7
5.5
V
OTP Program Voltage
VS-PGM
4.5
5.5
V
Quiescent Current
IQ
VS = +5V, does not include IREF
1.3
1.6
mA
Shutdown Supply Current
ISHDN
VS = +5V, does not include IREF
(8)
260
mA
POWER-ON RESET (POR)
Power-Up Threshold
VS rising
2.1
V
Power-Down Threshold
VS falling
1.7
V
TEMPERATURE RANGE
Specified Performance Range
–40
+125
°C
Operational-Degraded Performance Range
–40
+150
°C
Thermal Resistance
MSOP-10, Junction-to-Ambient
qJA
150
°C/W
(8)
IREF current load is typically 100mA while in Shutdown mode. Although the output amplifier is disabled in Shutdown mode, RFO and
RGO (180k
typical total) remain connected in series between VFB and GND while in Shutdown mode. See Figure 37, Detailed Block
Diagram, for more information.
6
Copyright 2008–2010, Texas Instruments Incorporated
Product Folder Link(s): PGA308
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