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參數資料
| 型號： | MAX1400EAI+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 4/34頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 18BIT LP 28-SSOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,000 |
| 位數： | 18 |
| 采樣率（每秒）： | 480 |
| 數據接口： | QSPI?，串行，SPI? |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 1.25mW |
| 電壓電源： | 模擬和數字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應商設備封裝： | 28-SSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數目和類型： | 3 個差分，單極；3 個差分，雙極；5 個偽差分，單極；5 個偽差分，雙極 |
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MAX1400
+5V, 18-Bit, Low-Power, Multichannel,
Oversampling (Sigma-Delta) ADC
12
______________________________________________________________________________________
Serial Digital Interface
The serial digital interface provides access to eight on-
chip registers (Figure 3). All serial-interface commands
begin with a write to the communications register
(COMM). On power-up, system reset, or interface reset,
the part expects a write to its communications register.
The COMM register access begins with a 0 start bit.
The COMM register R/W bit selects a read or write
operation, and the register select bits (RS2, RS1, RS0)
select the register to be addressed. Hold DIN high
when not writing to COMM or another register (Table 1).
The serial interface consists of five signals: CS, SCLK,
DIN, DOUT, and INT. Clock pulses on SCLK shift bits
into DIN and out of DOUT. INT provides an indication
that data is available. CS is a device chip-select input
as well as a clock polarity select input (Figure 4).
Using CS allows the SCLK, DIN, and DOUT signals to
be shared among several SPI-compatible devices.
When short on I/O pins, connect CS low and operate
the serial digital interface in CPOL = 1, CPHA = 1 mode
using SCLK, DIN, and DOUT. This 3-wire interface
mode is ideal for opto-isolated applications.
Furthermore, a microcontroller (such as a PIC16C54 or
80C51) can use a single bidirectional I/O pin for both
sending to DIN and receiving from DOUT (see
Applications Information), because the MAX1400 drives
DOUT only during a read cycle.
Additionally, connecting the INT signal to a hardware
interrupt allows faster throughput and reliable, collision-
free data flow.
The MAX1400 features a mode where the raw modula-
tor data output is accessible. In this mode the DOUT
and INT functions are reassigned (see the Modulator
Data Output section).
DATA REGISTER D1–D0/CID
RS0
GLOBAL SETUP REGISTER 1
GLOBAL SETUP REGISTER 2
SPECIAL FUNCTION REGISTER
XFER FUNCTION REGISTER 1
XFER FUNCTION REGISTER 2
XFER FUNCTION REGISTER 3
DATA REGISTER D17–D10
DATA REGISTER D9–D2
COMMUNICATIONS REGISTER
RS1
RS2
DIN
DOUT
REGISTER
SELECT
DECODER
Figure 3. Register Summary
DIN
(DURING
WRITE)*
DOUT
(DURING
READ)*
MSB D6
D5
D4
D3
D2
D1
D0
MSB D6
D5
D4
D3
D2
D1
D0
CS
INT
t10
t6
t8
t7
t17
t16
t3
t1
t13
t5
t4
t12
t18
t9
t11
t15
t14
SCLK
(CPOL = 1)
SCLK
(CPOL = 0)
*DOUT IS HIGH IMPEDANCE DURING THE WRITE CYCLE; DIN IS IGNORED
DURING THE READ CYCLE.
Figure 4. Serial-Interface Timing
Table 1. Control Register Addressing
0
RS1
0
RS0
0
1
Global Setup Register 1
0
1
0
1
Special Function Register
0
Global Setup Register 2
Communications Register
0
1
Transfer Function Register 2
1
0
1
Data Register
1
Transfer Function Register 3
Transfer Function Register 1
1
RS2
TARGET REGISTER
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX1400EVKIT | 制造商:Maxim Integrated Products 功能描述:MAX1402 EVALUATION KIT/EVALUATION SYSTEM - Boxed Product (Development Kits) |
| MAX1401CAI | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1401CAI+ | 功能描述:模數轉換器 - ADC 18-Bit 5Ch 4.8ksps 1.25V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1401CAI+T | 功能描述:模數轉換器 - ADC 18-Bit 5Ch 4.8ksps 1.25V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1401CAI-T | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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