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ADS7959QDBTRQ1 Datasheet(PDF) 11 Page - Texas Instruments

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Part # ADS7959QDBTRQ1
Description  ADS79xx-Q1 8-, 10-, and 12-Bit, 1-MSPS, 4-, 8-, 12-, and 16-Channel, Single-Ended, Micropower, Serial Interface, Analog-to-Digital Converters
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ADS7959QDBTRQ1 Datasheet(HTML) 11 Page - Texas Instruments

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ADS7950-Q1, ADS7951-Q1, ADS7952-Q1, ADS7953-Q1, ADS7954-Q1
ADS7956-Q1, ADS7957-Q1, ADS7958-Q1, ADS7959-Q1, ADS7960-Q1, ADS7961-Q1
www.ti.com
SBAS652A – MAY 2014 – REVISED AUGUST 2014
7.8 Timing Requirements
All specifications typical at –40°C to 125°C, V(+VA) = 2.7 V to 5.25 V (unless otherwise specified). See Figure 45, Figure 46,
Figure 47, and Figure 48.
PARAMETER(1)(2)
MIN
TYP
MAX
UNIT
V(+VBD) = 1.8 V
16
SCLK
tc
Conversion time
V(+VBD) = 3 V
16
SCLK
V(+VBD) = 5 V
16
SCLK
V(+VBD) = 1.8 V
40
ns
Minimum quiet sampling time needed from bus Tri-state to
tq
V(+VBD) = 3 V
40
ns
start of next conversion
V(+VBD) = 5 V
40
ns
V(+VBD) = 1.8 V
38
ns
td1
Delay time, CS low to first data (DO–15) out
V(+VBD) = 3 V
27
ns
V(+VBD) = 5 V
17
ns
V(+VBD) = 1.8 V
8
ns
tsu1
Setup time, CS low to first rising edge of SCLK
V(+VBD) = 3 V
6
ns
V(+VBD) = 5 V
4
ns
V(+VBD) = 1.8 V
35
ns
td2
Delay time, SCLK falling to SDO next data bit valid
V(+VBD) = 3 V
27
ns
V(+VBD) = 5 V
17
ns
V(+VBD) = 1.8 V
7
ns
th1
Hold time, SCLK falling to SDO data bit valid
V(+VBD) = 3 V
5
ns
V(+VBD) = 5 V
3
ns
V(+VBD) = 1.8 V
26
ns
td3
Delay time, 16th SCLK falling edge to SDO 3-state
V(+VBD) = 3 V
22
ns
V(+VBD) = 5 V
13
ns
V(+VBD) = 1.8 V
2
ns
tsu2
Setup time, SDI valid to rising edge of SCLK
V(+VBD) = 3 V
3
ns
V(+VBD) = 5 V
4
ns
V(+VBD) = 1.8 V
12
ns
th2
Hold time, rising edge of SCLK to SDI valid
V(+VBD) = 3 V
10
ns
V(+VBD) = 5 V
6
ns
V(+VBD) = 1.8 V
20
ns
tw1
Pulse duration CS high
V(+VBD) = 3 V
20
ns
V(+VBD) = 5 V
20
ns
V(+VBD) = 1.8 V
24
ns
td4
Delay time CS high to SDO 3-state
V(+VBD) = 3 V
21
ns
V(+VBD) = 5 V
12
ns
V(+VBD) = 1.8 V
20
ns
twH
Pulse duration SCLK high
V(+VBD) = 3 V
20
ns
V(+VBD) = 5 V
20
ns
V(+VBD) = 1.8 V
20
ns
twL
Pulse duration SCLK low
V(+VBD) = 3 V
20
ns
V(+VBD) = 5 V
20
ns
V(+VBD) = 1.8 V
20
MHz
ƒ(SCLK)
Frequency SCLK
V(+VBD) = 3 V
20
MHz
V(+VBD) = 5 V
20
MHz
(1)
1.8-V specifications apply from 1.7 V to 1.9 V, 3-V specifications apply from 2.7 V to 3.6 V, 5-V specifications apply from 4.75 V to 5.25
V.
(2)
With 50-pF load
Copyright © 2014, Texas Instruments Incorporated
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Product Folder Links: ADS7950-Q1 ADS7951-Q1 ADS7952-Q1 ADS7953-Q1 ADS7954-Q1 ADS7956-Q1 ADS7957-
Q1 ADS7958-Q1 ADS7959-Q1 ADS7960-Q1 ADS7961-Q1


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