参数资料
| 型号： | AD7945BRZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT MULTIPLYING 20-SOIC |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 37 |
| 设置时间： | 600ns |
| 位数： | 12 |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 电压电源： | 单电源 |
| 功率耗散（最大）： | 25µW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 管件 |
| 输出数目和类型： | 1 电流，单极；1 电流，双极 |
| 采样率（每秒）： | 1.7M |
| 产品目录页面： | 785 (CN2011-ZH PDF) |
AD7943/AD7945/AD7948
REV. B
–4–
AC PERFORMANCE CHARACTERISTICS
NORMAL MODE
Parameter
B Grades
T Grade
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
Output Voltage Settling Time
600
700
ns typ
To 0.01% of Full-Scale Range. VREF =
+10 V; DAC Latch Alternately Loaded with
All 0s and All 1s
Digital to Analog Glitch Impulse
60
nV-s typ
Measured with VREF = 0 V. DAC Latch
Alternately Loaded with All 0s and All 1s
Multiplying Feedthrough Error
–75
dB max
DAC Latch Loaded with All 0s
Output Capacitance
60
pF max
All 1s Loaded to DAC
30
pF max
All 0s Loaded to DAC
Digital Feedthrough (AD7943)
5
nV-s typ
Feedthrough to the DAC Output with
LD1,
LD2 High and Alternate Loading of All 0s
and All 1s into the Input Shift Register
Digital Feedthrough (AD7945, AD7948) 5
5
nV-s typ
Feedthrough to the DAC Output with
CS
High and Alternate Loading of All 0s and
All 1s to the DAC Bus
Total Harmonic Distortion
–83
dB typ
Output Noise Spectral Density
@ 1 kHz
35
nV/
√Hz typ All 1s Loaded to DAC. V
REF = 0 V. Output
Op Amp Is OP07
Specifications subject to change without notice.
(AD7943: VDD = +4.5 V to +5.5 V; VIOUT1 = VIOUT2 = AGND = 0 V. AD7945, AD7948: VDD = +4.5 V to +5.5 V; VIOUT1 =AGND =
0 V. VREF = 6 V rms, 1 kHz sine wave; TA = TMIN to TMAX; DAC output op amp is AD843; unless otherwise noted.) These characteristics are in-
cluded for Design Guidance and are not subject to test.
AC PERFORMANCE CHARACTERISTICS
BIASED MODE (AD7943: VDD = +3 V to +5.5 V; VIOUT1 = VIOUT2 = AGND = 1.23 V. AD7945, AD7948: VDD = +3 V to +5.5 V; VIOUT1 = AGND =
1.23 V. VREF = 1 kHz, 2.45 V p-p, sine wave biased at 1.23 V; DAC output op amp is AD820; TA = TMIN to TMAX; unless otherwise noted.) These
characteristics are included for Design Guidance and are not subject to test.
Parameter
A Grades
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
Output Voltage Settling Time
5
s typ
To 0.01% of Full-Scale Range. VREF = 0 V
DAC Latch Alternately Loaded with All 0s and All 1s
Digital to Analog Glitch Impulse
60
nV-s typ
VREF = 1.23 V. DAC Register Alternately Loaded
with All 0s and All 1s
Multiplying Feedthrough Error
–75
dB max
DAC Latch Loaded with All 0s
Output Capacitance
60
pF max
All 1s Loaded to DAC
30
pF max
All 0s Loaded to DAC
Digital Feedthrough
5
nV-s typ
Feedthrough to the DAC Output with
LD1, LD2
High and Alternate Loading of All 0s and All 1s
into the Input Shift Register
Digital Feedthrough (AD7945, AD7948)
5
nV-s typ
Feedthrough to the DAC Output with CS High
and Alternate Loading of All 0s and All 1s to the
DAC Bus
Total Harmonic Distortion
–83
dB typ
Output Noise Spectral Density
@ 1 kHz
25
nV/
√Hz typ
All 1s Loaded to DAC. VREF = 1.23 V
Specifications subject to change without notice.
相关PDF资料 |
PDF描述 |
|---|---|
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| AD7945BRSZ | IC DAC 12BIT MULTIPLYING 20-SSOP |
| MS27473E24F4PA | CONN PLUG 56POS STRAIGHT W/PINS |
| MS27496E25F35P | CONN RCPT 128POS BOX MNT W/PINS |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7945BRZ-AIRBUS | 制造商:Analog Devices 功能描述: |
| AD7945BRZ-REEL | 功能描述:IC DAC 12BIT MULT PARALL 20SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色产品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 标准包装:91 系列:- 设置时间:4µs 位数:10 数据接口:MICROWIRE?，串行，SPI? 转换器数目:8 电压电源:单电源 功率耗散（最大）:2.7mW 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-WFDFN 裸露焊盘 供应商设备封装:14-DFN-EP（4x3） 包装:管件 输出数目和类型:8 电压，单极 采样率（每秒）:* |
| AD7945TQ | 制造商:Rochester Electronics LLC 功能描述:PARALLEL 12-B IOUT DAC IC - Bulk |
| AD7946 | 制造商:AD 制造商全称:Analog Devices 功能描述:14-Bit, 500 kSPS PulSAR⑩ ADC in MSOP/QFN |
| AD79461 | 制造商:AD 制造商全称:Analog Devices 功能描述:18-Bit, 2 MSPS PulSAR 15 mW ADC in LFCSP (QFN) |
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