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| 型号： | AD7739BRUZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 31/32页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT 8-CH 24-TSSOP |
| 标准包装： | 62 |
| 位数： | 24 |
| 采样率（每秒）： | 15.1k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 100mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 管件 |
| 输入数目和类型： | 8 个单端，单极；8 个单端，双极；4 个差分，单极；4 个差分，双极 |
| 产品目录页面： | 779 (CN2011-ZH PDF) |
| 配用： | EVAL-AD7739EBZ-ND - BOARD EVAL FOR AD7739 |
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AD7739
Data Sheet
Rev. A | Page 8 of 32
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Figure 5. Pin Configuration (24-Lead TSSOP)
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
SCLK
Serial Clock. Schmitt triggered logic input. An external serial clock is applied to this input
to transfer serial data to or from the AD7739.
2
MCLKIN
Master Clock Signal for the ADC. This can be provided in the form of a crystal/resonator or
external clock. A crystal/resonator can be tied across the MCLKIN and MCLKOUT pins.
Alternatively, MCLKIN can be driven with a CMOS compatible clock and MCLKOUT can be
left unconnected.
3
MCLKOUT
Master Clock Signal for the ADC. When the master clock for the device is a crystal/
resonator, the crystal/resonator is connected between MCLKIN and MCLKOUT. If an
external clock is applied to the MCLKIN, MCLKOUT provides an inverted clock signal or
can be switched off to reduce the device power consumption. MCLKOUT can drive one
CMOS load.
4
CS
Chip Select. Active low Schmitt triggered logic input with an internal pull-up resistor.
With this input hardwired low, the AD7739 can operate in its 3-wire interface mode using
SCLK, DIN, and DOUT. CS can be used to select the device in systems with more than one
device on the serial bus. It can also be used as an 8-bit frame synchronization signal.
5
RESET
Schmitt Triggered Logic Input. Active low input that resets the control logic, interface
logic, digital filter, analog modulator, and all on-chip registers of the part to power-on
status. Effectively, everything on the part except the clock oscillator is reset when
the RESET pin is exercised.
6
AVDD
Analog Positive Supply Voltage, 5 V to AGND Nominal.
7
AINCOM/P0
Analog Inputs Common Terminal/Digital Output. The function of this pin is determined
by the P0 DIR bit in the I/O port register; the digital value can be written as the P0 bit in
the I/O port register. The digital voltage is referenced to analog supplies. When
configured as an input (P0 DIR bit set to 1), the single-ended analog inputs 0 to 7
(AIN0 to AIN7) can be referenced to the voltage level of this pin.
8
SYNC/P1
SYNC/Digital Input/Digital Output. The pin direction is determined by the P1 DIR bit; the
digital value can be read/written as the P1 bit in the I/O port register. When the sync bit in
the I/O port register is set to 1, then the SYNC/P1 pin can be used to synchronize the
AD7739 modulator and digital filter with other devices in the system. The digital voltage
is referenced to the analog supplies. When configured as an input, tie the pin high or low.
9 to 16
AIN0 to AIN7
Analog Inputs.
17
REFIN(+)
Positive Terminal of the Differential Reference Input. REFIN(+) voltage potential can lie
anywhere between AVDD and AGND. In normal circuit configuration, connect this pin to a
2.5 V reference voltage.
18
REFIN()
Negative Terminal of the Differential Reference Input. REFIN() voltage potential can lie
anywhere between AVDD and AGND. In normal circuit configuration, connect this pin to a
0 V reference voltage.
TOP VIEW
(Not to Scale)
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
AD7739
AIN4
AIN5
AIN6
AIN7
SYNC/P1
SCLK
MCLKIN
MCLKOUT
CS
AINCOM/P0
AVDD
RESET
AIN3
AIN2
AIN1
AIN0
REFIN(+)
DGND
DVDD
DIN
DOUT
REFIN(–)
AGND
RDY
03742-0-011
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7739BRUZ | 制造商:Analog Devices 功能描述:IC, ADC, 24BIT, 15.1KSPS, TSSOP-24 |
| AD7739BRUZ-REEL7 | 功能描述:IC ADC 24BIT 8CH SIG-DEL 24TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD773A | 制造商:AD 制造商全称:Analog Devices 功能描述:10-Bit, 20 MSPS Monolithic A/D Converter |
| AD773AJD | 制造商:Analog Devices 功能描述:ADC Single Pipelined 20Msps 10-bit Parallel 28-Pin CDIP 制造商:Rochester Electronics LLC 功能描述:IC, 10-BIT 20 MSPS ADC - Bulk |
| AD773AKD | 制造商:AD 制造商全称:Analog Devices 功能描述:10-Bit, 20 MSPS Monolithic A/D Converter |
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