AVDD = DVDD <" />
參數(shù)資料
型號: AD7766BRUZ-1
廠商: Analog Devices Inc
文件頁數(shù): 22/25頁
文件大小: 0K
描述: IC ADC 24BIT 64KSPS SAR 16TSSOP
標準包裝: 1
位數(shù): 24
采樣率(每秒): 64k
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 18mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 105°C
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應商設(shè)備封裝: 16-TSSOP
包裝: 管件
輸入數(shù)目和類型: 1 個差分,單極
產(chǎn)品目錄頁面: 779 (CN2011-ZH PDF)
配用: EVAL-AD7766EDZ-ND - BOARD EVAL AD7766 128KSPS 108DB
EVAL-AD7766-2EDZ-ND - BOARD EVAL AD7766-2 32KSPS 114DB
EVAL-AD7766-1EDZ-ND - BOARD EVAL AD7766-1 64KSPS 111DB
AD7766
Rev. C | Page 5 of 24
TIMING SPECIFICATIONS
AVDD = DVDD = 2.5 V ± 5%, VDRIVE = 1.7 V to 3.6 V, VREF+ = 5 V, common-mode input = VREF+/2, TA = 40°C (TMIN) to +105°C (TMAX),
unless otherwise noted.1
Table 3.
Parameter
Limit at tMIN, tMAX
Unit
Description
DRDY OPERATION
t1
510
ns typ
MCLK rising edge to DRDY falling edge
100
ns min
MCLK high pulse width
900
ns max
MCLK low pulse width
t4
265
ns typ
MCLK rising edge to DRDY rising edge (AD7766)
128
ns typ
MCLK rising edge to DRDY rising edge (AD7766-1)
71
ns typ
MCLK rising edge to DRDY rising edge (AD7766-2)
t5
294
ns typ
DRDY pulse width (AD7766)
435
ns typ
DRDY pulse width (AD7766-1)
492
ns typ
DRDY pulse width (AD7766-2)
t
DRDY t5
ns typ
DRDY low period, read data during this period
t
n × 8 × tMCLK
ns typ
DRDY period
READ OPERATION
t6
0
ns min
DRDY falling edge to CS setup time
t7
6
ns max
CS falling edge to SDO tristate disabled
t8
60
ns max
Data access time after SCLK falling edge (VDRIVE = 1.7 V)
50
ns max
Data access time after SCLK falling edge (VDRIVE = 2.3 V)
25
ns max
Data access time after SCLK falling edge (VDRIVE = 2.7 V)
24
ns max
Data access time after SCLK falling edge (VDRIVE = 3.0 V)
t9
10
ns min
SCLK falling edge to data valid hold time (VDRIVE = 3.6 V)
t10
10
ns min
SCLK high pulse width
t11
10
ns min
SCLK low pulse width
tSCLK
1/t8
sec min
Minimum SCLK period
t12
6
ns max
Bus relinquish time after CS rising edge
t13
0
ns min
CS rising edge to DRDY rising edge
READ OPERATION WITH CS LOW
t14
0
ns min
DRDY falling edge to data valid setup time
t15
0
ns max
DRDY rising edge to data valid hold time
DAISY-CHAIN OPERATION
t16
1
ns min
SDI valid to SCLK falling edge setup time
t17
2
ns max
SCLK falling edge to SDI valid hold time
SYNC/PD OPERATION
t18
1
ns typ
SYNC/PD falling edge to MCLK rising edge
t19
20
ns typ
MCLK rising edge to DRDY rising edge going into SYNC/PD mode
t20
1
ns min
SYNC/PD rising edge to MCLK rising edge
t21
510
ns typ
MCLK rising edge to DRDY falling edge coming out of SYNC/PD mode
tSETTLING3
(592 × n) + 2
tMCLK
Filter settling time after a reset or power-down
1 Sample tested during initial release to ensure compliance. All input signals are specified with tr = tf = 5 ns (10% to 90% of DVDD) and timed from a voltage level of 1.7 V.
2 t2 and t3 allow a ~90% to 10% duty cycle to be used for the MCLK input, where the minimum is 10% for the clock high time and 90% for MCLK low time. The maximum
MCLK frequency is 1.024 MHz.
3 n = 1 for AD7766, n = 2 for the AD7766-1, n = 4 for the AD7766-2.
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