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參數資料
| 型號： | AS1521-T |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | ADC |
| 英文描述： | 10-Bit, 8-Ch, 300ksps, ADC; Package Type: TSSOP-20 |
| 封裝： | TSSOP-20 |
| 文件頁數： | 18/29頁 |
| 文件大?。?/td> | 1043K |
| 代理商： | AS1521-T |
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www.austriamicrosystems.com
Revision 1.00
18 - 29
AS1520/AS1521
Data Sheet
- Detailed Description
Figure 23. Detailed Serial Interface Timing Waveforms
The external serial clock shifts data in and out of the devices and drives the analog-to-digital conversion steps. Two
clock periods after the last bit of the control byte is written the output pin SSTRB pulses high for one clock period.
The serial data is shifted out at DOUT on each of the next 12 SCLK rising edges (see
Figure 21 on page 17
).
Pins SSTRB and DOUT go into a high-impedance state when CSN goes high. The conversion must complete in 120μs
or less, or consequently, droop on the sample-and-hold capacitors may degrade conversion results.
Figure 23
shows
detailed serial-interface timing waveforms.
Transfer Functions
Output coding and transfer function depend on the control register bits
MODE (page 15)
and
RANGE (page 15)
.
Figure 24. Straight Binary Transfer Function for
RANGE = 1 and MODE = 1
Figure 25. Straight Binary Transfer Function for
RANGE = 0 and MODE = 1
t
DH
CSN
SCLK
DIN
SSTRB
DOUT
t
CSS
t
CP
t
CSW
t
CSO
t
CL
t
CH
t
DOH
t
DOV
t
DOD
t
STD
t
STH
t
DS
t
DOE
t
STE
t
STV
11...111
11...1110
11....101
00...011
00...010
00...001
00...000
O
0
1
2
3
Input Voltage AIN+ - AIN- (LSB)
FS - 3/2LSB
Full Scale (FS)
Transition
Full Scale = V
REF
Zero Scale = 0
1LSB = V
REF
/1024
11...111
11...1110
11....101
00...011
00...010
00...001
00...000
O
ZS ZS+1LSB
Input Voltage AIN+ - AIN- (LSB)
FS - 3/2LSB
Full Scale (FS)
Transition
Full Scale = +V
REF
/2
Zero Scale = -V
REF
/2
1LSB = V
REF
/1024
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相關代理商/技術參數 |
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|---|---|
| AS1522 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:10-Bit, Single-Supply, Low-Power, 400/300ksps, 4-Channel A/D Converters |
| AS1522BTST | 制造商:AMS 功能描述:IC ADC 10BIT 400KSPS TSSOP-16 制造商:AMS 功能描述:IC, ADC, 10BIT, 400KSPS, TSSOP-16; Resolution (Bits):10bit; Sampling Rate:400kSPS; Supply Voltage Type:Single; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Supply Current:3.3mA; Digital IC Case Style:TSSOP; No. of Pins:16 ;RoHS Compliant: Yes |
| AS1522-BTST | 功能描述:IC ADC 10BIT 4CH 400K 16-TSSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:250 系列:- 位數:12 采樣率（每秒）:1.8M 數據接口:并聯 轉換器數目:1 功率耗散（最大）:1.82W 電壓電源:模擬和數字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-LQFP 供應商設備封裝:48-LQFP（7x7） 包裝:管件 輸入數目和類型:2 個單端，單極 |
| AS1522-T | 制造商:ams 功能描述:IC ADC 10BIT 4CH 400K 16-TSSOP 制造商:ams 功能描述:T&R / TSSOP 16 |
| AS1523 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:10-Bit, Single-Supply, Low-Power, 400/300ksps, 4-Channel A/D Converters |
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