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參數(shù)資料
| 型號(hào)： | AS1542-BTST |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | ADC |
| 英文描述： | 12-bit 16-CH 1Msps w Sequencer; Package Type: TSSOP-28 |
| 封裝： | TSSOP-28 |
| 文件頁數(shù)： | 3/29頁 |
| 文件大小： | 964K |
| 代理商： | AS1542-BTST |
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Revision 1.00
3 - 29
AS1542
Data Sheet - Pinout
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
Pin Descriptions
Table 1. Pin Descriptions
Pin Number Pin Name
Description
(see Figure 2)
V
IN
x
Analog Inputs 0:15
.
Sixteen single-ended or eight fully-differential analog input channels
that are multiplexed into the track-and-hold circuitry. Input channels are selected by using
address bits
ADDR3:ADDR0 (page 14)
of the control register. The address bits in
conjunction with bits
SEQ (page 14)
and
SHADOW (page 14)
allow the sequence register
to be programmed. The bit
SE/FDN (page 14)
of the control register selects single-ended
or fully-differential conversion mode. In case of single-ended mode the input range can
extend from [0V to V
REFIN
] or [0V to 2 x V
REFIN
]. In case of fully-differential mode the
differential input range can extend from [-V
REFIN
/2 to +V
REFIN
/2] or [-V
REFIN
to +V
REFIN
].
Note:
Unused inputs should be connected to AGND to avoid noise.
Reference Input
. An external reference must be applied to this input. The voltage range
for the external reference is 2.5V ±1% for specified performance.
Serial Clock
. Provides the serial clock for accessing data from the part. This clock input is
also used as the clock source for the ADC conversion process
2.7 to 5.25V Supply Input.
For the [0V to 2 x V
REFIN
] range, V
DD
must be between 4.75
and 5.25V
Logic Power Supply Input
. The voltage supplied at this pin determines the operating
voltage of the AS1542 serial interface. V
DRIVE
≤
V
DD
required.
Digital Output
. The ADC conversion result is provided serially on this output. Data bits are
clocked out on the falling edge of SCLK. The data stream consists of four address bits
indicating the corresponding conversion channel, followed by 12 bits of conversion data
(MSB first). Output coding may be selected as straight binary or two’s complement
depending on the setting of bit
CODING (page 14)
.
Digital Input
. Data is clocked into to the AS1542 control register on this input
(see Control
Register on page 14)
.
Chip Select
. Active low input. Initiates conversions and also is used to frame the serial
data transfer.
Analog Ground
. Ground reference point for all analog circuitry. All analog input signals
and any external reference signal should be referenced to pin AGND.
Note:
AGND, GND and DGND pins must be connected together.
Digital Logic Ground
. Ground reference point for the V
DRIVE
logic power supply input.
V
DRIVE
should be decoupled to pin DGND.
Supply Ground
. Ground reference point for the V
DD
supply input. The supply input V
DD
should be decoupled to pin GND.
REFIN
SCLK
V
DD
V
DRIVE
DOUT
DIN
CSN
AGND
DGND
GND
7
V
I
4
N
1
V
I
8
V
I
2
V
I
3
V
I
5
V
I
6
V
I
1
V
I
9
V
I
1
V
I
1
V
I
1
V
I
1
D
2
I
2
I
2
I
2
I
2
2
2
D
2
1
1
2
1
1
1
AS1542
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS1542-BTSU | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| AS1543 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:8/4-Channel, 1 Msps, 12-Bit ADC with Sequencer |
| AS1543BQFT | 制造商:AMS 功能描述:IC ADC 12BIT 1MSPS TQFN-20 制造商:AMS 功能描述:IC, ADC, 12BIT, 1MSPS, TQFN-20; Resolution (Bits):12bit; Sampling Rate:1MSPS; Supply Voltage Type:Single; Supply Voltage Min:2.75V; Supply Voltage Max:5.25V; Supply Current:3mA; Digital IC Case Style:TQFN; No. of Pins:20; DNL:1.2LSB;RoHS Compliant: Yes |
| AS1543-BQFT | 功能描述:IC ADC 12BIT 8CH 1M 20-TQFN 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 |
| AS1543-BTST | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:8/4-Channel, 1 Msps, 12-Bit ADC with Sequencer |
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