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參數資料
型號: TLV2548MPWREP
廠商: TEXAS INSTRUMENTS INC
元件分類: ADC
英文描述: 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝: GREEN, PLASTIC, TSSOP-20
文件頁數: 14/37頁
文件大小: 915K
代理商: TLV2548MPWREP
www.ti.com
SLAS668 – OCTOBER 2009
ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range, VCC = VREFP = 3 V to 5.5 V, VREFM = 0 V, SCLK frequency = 20 MHz at 5 V,
15 MHz at 3 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP (1)
MAX
UNIT
REFERENCE SPECIFICATIONS(4)
(0.1
μF and 10 μF between REFP and
REFM pins)
Positive reference input
REFP
VCC = 2.7 V to 5.5 V
2
VCC
V
voltage
Negative reference input
REFM
VCC = 2.7 V to 5.5 V
0
2
V
voltage
CS = 1,
SCLK = 0, (off)
100
M
VCC = 5.5 V
SCLK = 20 MHz
CS = 0,
20
25
k
(on)
Reference Input impedance
CS = 1,
SCLK = 0 (off)
100
M
VCC = 2.7 V
SCLK = 15 MHz
CS = 0,
20
25
k
(on)
Reference Input voltage
REFP-REFM
VCC = 2.7 V to 5.5 V
2
VCC
V
difference
VCC = 5.5 V
VREF SELECT = 4 V
3.85
4
4.15
REFP-REFM
Internal reference voltage
VCC = 5.5 V
VREF SELECT = 2 V
1.925
2
2.075
V
VCC = 2.7 V
VREF SELECT = 2 V
1.925
2
2.075
Internal reference start–up
VCC = 5.5 V, 2.7 V with 10 μF compensation cap
20
ms
time
Internal reference
VCC = 2.7 V to 5.5 V
16
40(5)
PPM/°C
temperature coefficient
(4)
Specified by design.
(5)
Specified by design.
Copyright 2009, Texas Instruments Incorporated
21
Product Folder Link(s): TLV2548-EP
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