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參數(shù)資料
| 型號： | AD7853BR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
| 中文描述： | 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24 |
| 封裝： | SOIC-24 |
| 文件頁數(shù)： | 5/34頁 |
| 文件大小： | 350K |
| 代理商： | AD7853BR |
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REV. B
–5–
AD7853/AD7853L
TYPICAL TIMING DIAGRAMS
Figures 2 and 3 show typical read and write timing diagrams.
Figure 2 shows the reading and writing after conversion in In-
terface Modes 2 and 3. To attain the maximum sample rate of
100 kHz (AD7853L) or 200 kHz (AD7853) in Interface Modes
2 and 3, reading and writing must be performed during conver-
sion. Figure 3 shows the timing diagram for Interface Modes 4
and 5 with sample rate of 100 kHz (AD7853L) or 200 kHz
(AD7853). At least 400 ns acquisition time must be allowed
(the time from the falling edge of BUSY to the next rising edge
of
CONVST
) before the next conversion begins to ensure that
the part is settled to the 12-bit level. If the user does not want to
provide the
CONVST
signal, the conversion can be initiated in
software by writing to the control register.
TO OUTPUT
PIN
+2.1V
I
OH
1.6mA
200
m
A
I
OL
C
L
100pF
Figure 1. Load Circuit for Digital Output Timing
Specifications
POLARITY PIN LOGIC HIGH
SYNC
(I/P)
SCLK (I/P)
t
3
BUSY (O/P)
CONVST
(I/P)
t
2
t
1
t
5
t
11
t
6
t
9
t
10
1
5
6
16
t
12
t
6
DOUT (O/P)
DB0
DB11
t
8
DB15
DB0
THREE-
STATE
DB11
THREE-
STATE
DB15
t
CONVERT
t
7
t
CONVERT
= 4.6
m
s MAX, 10
m
s FOR L VERSION
t
1
= 100 ns MIN,
t
5
= 50/90 ns MAX 5V/3V,
t
7
= 40/60 ns MIN 5V/3V
Figure 2. AD7853/AD7853L Timing Diagram (Typical Read and Write Operation for Interface Modes 2, 3)
POLARITY PIN LOGIC HIGH
SYNC
(O/P)
DOUT (O/P)
SCLK (O/P)
DB0
DB11
t
4
t
8
DIN (I/P)
DB15
DB0
THREE-
STATE
BUSY (O/P)
CONVST
(I/P)
DB11
t
2
t
1
t
7
t
11
t
6
t
9
t
10
THREE-
STATE
1
5
6
16
t
12
t
5
DB15
t
CONVERT
t
CONVERT
= 4.6
m
s MAX, 10
m
s FOR L VERSION
t
1
= 100 ns MIN,
t
5
= 50/90 ns MAX 5V/3V,
t
7
= 40/60 ns MIN 5V/3V
Figure 3. AD7853/AD7853L Timing Diagram (Typical Read and Write Operation for Interface Modes 4, 5)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD7853LAN | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
| AD7853LAR | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
| AD7853LBN | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
| AD7853LBR | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
| AD7854LARS | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7853BR-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 12-bit Serial 24-Pin SOIC W T/R |
| AD7853BRZ | 功能描述:IC ADC 12BIT SRL 200KSPS 24SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):12 采樣率（每秒）:3M 數(shù)據(jù)接口:- 轉(zhuǎn)換器數(shù)目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:- |
| AD7853BRZ-REEL | 功能描述:IC ADC 12BIT SRL 200KSPS 24SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個(gè)單端，單極；1 個(gè)單端，雙極 |
| AD7853L | 制造商:AD 制造商全稱:Analog Devices 功能描述:3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
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