參數(shù)資料
型號(hào): ADS7953SBRHBT
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): ADC
英文描述: 16-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQCC32
封裝: GREEN, PLASTIC, PQFP-32
文件頁(yè)數(shù): 2/63頁(yè)
文件大?。?/td> 1734K
代理商: ADS7953SBRHBT
SLAS605A – JUNE 2008 – REVISED JANUARY 2010
www.ti.com
TIMING REQUIREMENTS (see Figure 45, Figure 46, Figure 47, and Figure 48) (continued)
All specifications typical at –40°C to 125°C, +VA = 2.7 V to 5.25 V (unless otherwise specified)
PARAMETER
TEST CONDITIONS(1) (2)
MIN
TYP
MAX
UNIT
+VBD = 1.8 V
38
td1
Delay time, CS low to first data (DO–15) out
+VBD = 3 V
27
ns
+VBD = 5 V
17
+VBD = 1.8 V
8
tsu1
Setup time, CS low to first rising edge of SCLK
+VBD = 3 V
6
ns
+VBD = 5 V
4
+VBD = 1.8 V
35
td2
Delay time, SCLK falling to SDO next data bit valid
+VBD = 3 V
27
ns
+VBD = 5 V
17
+VBD = 1.8 V
7
th1
Hold time, SCLK falling to SDO data bit valid
+VBD = 3 V
5
ns
+VBD = 5 V
3
+VBD = 1.8 V
26
td3
Delay time, 16th SCLK falling edge to SDO 3-state
+VBD = 3 V
22
ns
+VBD = 5 V
13
+VBD = 1.8 V
2
tsu2
Setup time, SDI valid to rising edge of SCLK
+VBD = 3 V
3
ns
+VBD = 5 V
4
+VBD = 1.8 V
12
th2
Hold time, rising edge of SCLK to SDI valid
+VBD = 3 V
10
ns
+VBD = 5 V
6
+VBD = 1.8 V
20
tw1
Pulse duration CS high
+VBD = 3 V
20
ns
+VBD = 5 V
20
+VBD = 1.8 V
24
td4
Delay time CS high to SDO 3-state
+VBD = 3 V
21
ns
+VBD = 5 V
12
+VBD = 1.8 V
20
twh
Pulse duration SCLK high
+VBD = 3 V
20
ns
+VBD = 5 V
20
+VBD = 1.8 V
20
twl
Pulse duration SCLK low
+VBD = 3 V
20
ns
+VBD = 5 V
20
+VBD = 1.8 V
20
Frequency SCLK
+VBD = 3 V
20
MHz
+VBD = 5 V
20
10
Copyright 2008–2010, Texas Instruments Incorporated
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