- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄381305 > AS1520-T (AUSTRIAMICROSYSTEMS AG) 10-Bit, 8-Ch, 400ksps, ADC; Package Type: TSSOP-20 PDF資料下載
參數(shù)資料
| 型號(hào)： | AS1520-T |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | ADC |
| 英文描述： | 10-Bit, 8-Ch, 400ksps, ADC; Package Type: TSSOP-20 |
| 封裝： | TSSOP-20 |
| 文件頁數(shù)： | 15/29頁 |
| 文件大?。?/td> | 1043K |
| 代理商： | AS1520-T |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁當(dāng)前第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁
www.austriamicrosystems.com
Revision 1.00
15 - 29
AS1520/AS1521
Data Sheet
- Detailed Description
Control Register
The control register on the AS1520/AS1521 is a 8-bit, write-only register. Data is written to this register using the CSN,
DIN and SCLK pins. The control register format is shown in
Table 7
and the function of the bits are defined in
Table 8
.
The AS1520/AS1521 operating modes are selected by sending an 8-bit data word to the internal shift register via pin
DIN. After pin CSN is pulled low, the first logic 1 on pin DIN is interpreted as a start bit. A start bit is defined as one of
the following:
!
The first logic 1 bit clocked into pin DIN (with CSN low) any time the AS1520/AS1521 is idle, e.g., after V
DD1
and
V
DD2
are applied.
!
The first logic 1 bit clocked into pin DIN after bit 6 of a conversion in progress is clocked out of pin DOUT.
Figure 22 on page 17
shows the serial-interface timing necessary to perform a conversion every 16 SCLK cycles. If
CSN is tied low and SCLK is continuous, guarantee a start bit by first clocking in sixteen 0s. The fastest speed at which
the devices can operate is 16 clocks per conversion (with CSN held low between conversions).
Table 7. Control Byte Format
Bit 7
Bit 6
Bit 5
Bit 4
START (MSB)
SEL2
SEL1
SEL0
Analog Input Configuration
Bit 3
RANGE
Bit 2
MODE
Bit 1
PD1
Bit 0
PD0 (LSB)
Table 8. Bit Descriptions
Bit
7
Name
START
Description
The first logic 1 bit after CSN goes low signifies the start of a control byte.
These three bits select which of the eight channels and pin COM are used for
the conversion (see
Table 10
and
Table 11
).
This bit selects the analog input range of the AS1520/AS1521.
0 = The analog input range extends from -V
REF
/2 to +V
REF
/2.
1= The analog input range extends from 0V to V
REF
.
This bit in conjunction with bit RANGE changes the analog input configuration.
0 = The voltage difference between two selectable channels is converted. This
setting selects two's complement coding (see
Table 10 on page 16
and
Table 11 on page 16
).
1 = One of the eight input channels is referenced to COM. This setting also
selects binary coding.
Selects the AS1520/AS1521 operating mode:
PD1
PD0
Mode
0
0
Full power-down mode.
0
1
Reduced-power mode.
1
0
Reduced-power mode.
1
1
Normal operation.
6:4
SEL2:SEL0
3
RANGE
2
MODE
1:0
PD1:PD0
Table 9. Analog Input Configuration
Analog Input Configuration
Mode
Range
Coding
Comments
AIN+ from 0 to V
REF
.
COM should be tied to GND.
8-Channel Single-Ended
1
1
Binary
8-Channel Pseudo Differential
referenced to COM
8-Channel Pseudo Differential
referenced to COM
4-Channel Pseudo Differential
4-Channel Pseudo Differential
1
1
Binary
AIN+ from COM to COM + V
REF
1
0
Binary
AIN+ from -V
REF
/2+COM to + V
REF
/2+COM
0
0
1
0
Two's Complement
Two's Complement
AIN+ - AIN- from 0 to V
REF
AIN+ - AIN- from -V
REF
/2 to +V
REF
/2
AIN+ - AIN- from -V
REF
/2 to +V
REF
/2,
fully differential input signal.
4-Channel Fully Differential
0
0
Two's Complement
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS1521-T | 10-Bit, 8-Ch, 300ksps, ADC; Package Type: TSSOP-20 |
| AS1523-T | 10-Bit, 4-Ch, 300ksps, ADC; Package Type: TSSOP-16 |
| AS1524-BTDT | μPower 12-Bit 1-CH 150ksps TD; Package Type: TDFN(3x3)-8 |
| AS1526-BSOT | 10-bit ADC 1-CH, 73ksps intRef; Package Type: SOIC-8 |
| AS1527-BSOT | 10-bit ADC, 1-Channel, 73ksps; Package Type: SOIC-8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS1521 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:10-Bit, Single-Supply, Low-Power, 400/300ksps, 8-Channel A/D Converters |
| AS1521BTST | 制造商:AMS 功能描述:IC ADC 10BIT 300KSPS TSSOP-20 制造商:AMS 功能描述:IC, ADC, 10BIT, 300KSPS, TSSOP-20; Resolution (Bits):10bit; Sampling Rate:300kSPS; Supply Voltage Type:Single; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Supply Current:2.7mA; Digital IC Case Style:TSSOP; No. of Pins:20 ;RoHS Compliant: Yes |
| AS1521-BTST | 功能描述:IC ADC 10BIT 8CH 300K 20-TSSOP 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:250 系列:- 位數(shù):12 采樣率（每秒）:1.8M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:1.82W 電壓電源:模擬和數(shù)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(yīng)商設(shè)備封裝:48-LQFP（7x7） 包裝:管件 輸入數(shù)目和類型:2 個(gè)單端，單極 |
| AS1521-BTSU | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:10-Bit, Single-Supply, Low-Power, 400/300ksps, 8-Channel A/D Converters |
| AS1521-T | 制造商:ams 功能描述:IC ADC 10BIT 8CH 300K 20-TSSOP 制造商:ams 功能描述:T&R / TSSOP 16 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。