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參數資料
| 型號： | 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 |
| 文件頁數： | 1/29頁 |
| 文件大小： | 1399K |
| 代理商： | AS1543-BQFT |
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Datasheet
AS1543/44
8/4-Channel, 1 Msps, 12-Bit ADC with Sequencer
1 General Description
The AS1543/44 is a 12-bit high-speed, low-power, 8/4-channel, suc-
cessive-approximation ADC that operates from a single 2.7 to 5.25V
supply. The device features high throughput rates (1Msps) and a
low-noise, wide-bandwidth track-and-hold amplifier that can handle
input frequencies in excess of 1 MHz.
The AS1543 features 8 single-ended or 4 fully differential analog
inputs while the AS1544 offers 4 single-ended or 2 fully differential
analog inputs. Both include a channel sequencer to allow a pro-
grammed selection of channels to be converted sequentially. The
conversion time is determined by the SCLK frequency (also used as
the master clock to control the conversion).
The conversion process and data acquisition are controlled using a
chip select pin and a serial clock signal, allowing the device to easily
interface with microprocessors or DSPs. The input signal is sampled
on the falling edge of CSN and conversion is also initiated at this
point. There are no pipeline delays associated with the device.
The AS1543/44 uses advanced design techniques to achieve very
low power dissipation at high throughput rates. At maximum through-
put rates, the AS1543/44 consumes just 2.8mA (@3.6V), and 3.5mA
(@5.25V).
By using internal control register, single-ended or fully-differential
conversion mode with different input ranges can be used with either
straight binary or twos complement output coding.
The device is available in a QFN(4x4)-20 pin package.
Figure 1. AS1543 - Block Diagram
2 Key Features
Single Supply Operation with V
DRIVE
Function:
2.7 to 5.25V
Fast Throughput Rate: 1 Msps
Sequencer & Channel Counter
Software-Configurable Analog Input Types:
- 8/4-Channel Single-Ended
- 4/2-Channel Fully-Differential
Software-Configurable Input Range
Low Power Consumption at Max Throughput Rates:
- 10.1mW @ 1Msps (3.6V Supply)
- 18.4mW @ 1Msps (5.25V Supply)
Shutdown Mode Current: 0.5μA
Flexible Power/Serial Clock Speed Management
Wide Input Bandwidth: 71dB SNR @ 50 kHz Input Frequency
No Pipeline Delays
High Speed SPI/QSPI/Microwire/DSP Interface
QFN(4x4)-20 Package
3 Applications
The devices are ideal for remote sensors, data-acquisition and data-
logging devices, pen-digitizers, process control, or any other space-
limited A/D application with low power-consumption requirements.
SCLK
AS1543
REFIN
CSN
V
IN0:7
DOUT
AGND
Multiplexer
8
Track/
Hold
VDD
Sequencer
Control
Logic
12-Bit
ADC
DIN
VDRIVE
GND
DGND
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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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