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參數(shù)資料
| 型號(hào)： | CDB5534U |
| 廠商： | Cirrus Logic Inc |
| 文件頁數(shù)： | 4/43頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BOARD FOR CS5534 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 24 |
| 采樣率（每秒）： | 3.84k |
| 數(shù)據(jù)接口： | 串行 |
| 輸入范圍： | 0 ~ 2.5 V |
| 在以下條件下的電源（標(biāo)準(zhǔn)）： | 35mW @ 5V |
| 工作溫度： | -40°C ~ 85°C |
| 已用 IC / 零件： | CS5534 |
| 已供物品： | 板，纜線，CD |
| 相關(guān)產(chǎn)品： | CS5534-BSZR-ND - IC ADC 24BIT 4CH W/LNA 24SSOP CS5534-ASZR-ND - IC ADC 24BIT 4CH W/LNA 24-SSOP 598-1116-5-ND - IC ADC 24BIT 4CH W/LNA 24SSOP 598-1115-5-ND - IC ADC 24BIT 4CH W/LNA 20SSOP |
| 其它名稱： | 598-1016 |
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CS5531/32/33/34-AS
12
DS289F5
2. GENERAL DESCRIPTION
The CS5531/32/33/34 are highly integrated
Σ An-
alog-to-Digital Converters (ADCs) which use
charge-balance
techniques
to
achieve
16-bit
(CS5531/33) and 24-bit (CS5532/34) performance.
The ADCs are optimized for measuring low-level
unipolar or bipolar signals in weigh scale, process
control, scientific, and medical applications.
To accommodate these applications, the ADCs
come as either two-channel (CS5531/32) or four-
channel (CS5533/34) devices and include a very-
low-noise, chopper-stabilized, programmable-gain
instrumentation amplifier (PGIA, 6 nV/
√Hz @ 0.1
Hz) with selectable gains of 1×, 2×, 4×, 8×, 16×,
32×, and 64×. These ADCs also include a fourth or-
der
Σ modulator followed by a digital filter which
provides twenty selectable output word rates of 6.25,
7.5, 12.5, 15, 25, 30, 50, 60, 100, 120, 200, 240, 400,
480, 800, 960, 1600, 1920, 3200, and 3840 Samples
per second (MCLK = 4.9152 MHz).
To ease communication between the ADCs and a
microcontroller, the converters include a simple
three-wire serial interface which is SPI and Mi-
crowire compatible with a Schmitt-trigger input on
the serial clock (SCLK).
2.1. Analog Input
Figure 3 illustrates a block diagram of the
CS5531/32/33/34. The front end consists of a multi-
plexer, a unity gain coarse/fine charge input buffer,
and a programmable gain chopper-stabilized instru-
mentation amplifier. The unity gain buffer is activat-
ed any time conversions are performed with a gain
of one and the instrumentation amplifier is activated
any time conversions are performed with gain set-
tings greater than one.
The unity gain buffer is designed to accommodate
rail to rail input signals. The common-mode plus
signal range for the unity gain buffer amplifier is
VA- to VA+. Typical CVF (sampling) current for
the unity gain buffer amplifier is about 50 nA
(MCLK = 4.9152 MHz, see Figure 4).
The instrumentation amplifier is chopper stabilized
and operates with a chop clock frequency of
MCLK/128. The CVF (sampling) current into the
VREF+
Sinc
Digital
Filter
XGAIN
M
U
X
AIN2+
AIN2-
AIN1+
AIN1-
CS5531/32 IN+
IN-
AIN4+
AIN4-
*
AIN1+
AIN1-
CS5533/34
M
U
X
IN+
IN-
IN+
IN-
GAIN is the gain setting of the PGIA (i.e. 2, 4, 8, 16, 32, 64)
X1
VREF-
X1
Differential
4
Order
Σ
Modulator
th
5
Programmable
Sinc
Digital Filter
3
Serial
Port
1000
1000
22 nF
C1 PIN
C2 PIN
X1
Figure 3. Multiplexer Configuration
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| CDB5534U-Z | 功能描述:EVAL BD 24-BIT ADCS W/ULTRALN PG 制造商:cirrus logic inc. 系列:- 零件狀態(tài):在售 A/D 轉(zhuǎn)換器數(shù):1 位數(shù):24 采樣率（每秒）:3.84k 數(shù)據(jù)接口:串行 輸入范圍:±2.5 V 不同條件下的功率（典型值）:35mW @ 3.84kSPS 使用的 IC/零件:CS5534 所含物品:板，電纜 標(biāo)準(zhǔn)包裝:1 |
| CDB5540 | 制造商:Cirrus Logic 功能描述:EVAL BOARD FOR CS5540 - Bulk |
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| CDB5560 | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 Eval Bd 50kSps 24Bit Mux ADC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
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