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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(yè)數(shù)： | 20/29頁(yè) |
| 文件大?。?/td> | 1043K |
| 代理商： | AS1520-T |
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Revision 1.00
20 - 29
AS1520/AS1521
Data Sheet
- Detailed Description
Reduced Power Mode
Reduced power mode is activated using bits PD1 and PD0
(see Table 12)
. When reduced power mode is asserted, the
AS1520/AS1521 completes any conversion in progress and enters reduced power mode.
The next start of conversion puts the AS1520/AS1521 into normal operation mode. The 8-bit control byte shifted into
the control register determines the next power mode. For example, if the 8-bit control byte contains PD1 = 0 and PD0
= 1, reduced power mode starts immediately after the conversion (see
Figure 28
)
.
The reduced-power mode achieves the lowest power consumption at speeds close to the maximum sample rate.
Figure 29
shows the AS1521 power consumption in reduced-power mode and normal operating mode
(see Table 12
on page 19)
with the internal reference and maximum clock speed.
Figure 28. Reduced-Power Mode Timing Waveforms (AS1521)
Note:
The clock speed in reduced-power mode should be limited to 4.8MHz. Full power-down mode may provide
increased power savings in applications where the devices are inactive for long periods of time, where intermit-
tent bursts of high-speed conversions are required.
Figure 29. Normal Operation and Reduced Power Mode using Internal Reference (AS1521)
Full Power-Down Mode
Full power-down is activated using bits PD1 and PD0
(see Table 12)
. Full power-down mode offers the lowest power
consumption at up to 1000 conversions per-channel per-second. When full power-down is asserted, the AS1520/
AS1521 completes any conversion in progress and powers down into specified low-quiescent current state.
The start of the next conversion puts the AS1520/AS1521 into normal operation mode. The 8-bit control byte shifted
into the control register determines the next power mode. For example, if the 8-bit control byte contains PD1 = 0 and
PD0 = 0, full power-down mode starts immediately after the conversion (see
Figure 30 on page 21
)
DIN
1
V
DD1
+V
DD2
+V
DD3
1
1
1
1
1
0
0
0
Reduced-
Power Mode
Reduced-
Power Mode
Reduced-
Power Mode
2.50V (Always On)
2.2mA
2.2mA
2.2mA
0.4mA
Reduced
Power Mode
0.4mA
Reduced
Power Mode
0.4mA
Reduced
Power Mode
REF
Normal Mode
Conversion
Normal Mode
Conversion
Normal Mode
Conversion
0
0.001
500
1000
1500
2000
2500
3000
0.1
10
1000
Sampling Rate (ksps)
S
.
Reduced Power Mode
Normal Operation
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 |
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