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參數(shù)資料
| 型號(hào)： | AS1543-BQFT |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | ADC |
| 英文描述： | 12-bit 8-CH 1Msps w Sequencer; Package Type: TQFN(4x4)-20 |
| 封裝： | TQFN(4x4)-20 |
| 文件頁(yè)數(shù)： | 2/29頁(yè) |
| 文件大?。?/td> | 1399K |
| 代理商： | AS1543-BQFT |
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AS1543/44
Datasheet - 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
.
8/4 single-ended or 4/2 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 13)
of the
control register. The address bits in conjunction with bits
SEQ (page 13)
and
SHADOW (page 13)
allow the
sequence register to be programmed. The bit
SE/FDN (page 13)
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 AS1543/
44 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 13)
.
Digital Input
. Data is clocked into to the AS1543/44 control register on this input
(see Control Register on
page 12)
.
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
AS1543
9
S
6
N
7
D
8
D
1
V
15 REFIN
14 VDD
13 GND
12 CSN
11
DIN
1
I
2
I
1
I
1
I
1
5
N/C
4
V
IN0
3
V
IN1
2
V
IN2
1
V
IN3
AS1544
9
S
6
N
7
D
8
D
1
V
15 REFIN
14 VDD
13 GND
12 CSN
11
DIN
1
2
1
1
1
5
N/C
4
V
IN0
3
V
IN1
2
V
IN2
1
V
IN3
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| AS1544 | 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 |
| AS1544-08A0050 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| AS1544-14A0310 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| AS1544BQFT | 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, MSL:- , RoHS Compliant: Yes 制造商:ams 功能描述:T&R / TQFN (4x4) 20 |
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