参数资料
| 型号： | AD7840ARSZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/16页 |
| 文件大小： | 0K |
| 描述： | IC DAC 14BIT LOW POWER 5V 24SSOP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 1 |
| 设置时间： | 2.5µs |
| 位数： | 14 |
| 数据接口： | 串行，并联 |
| 转换器数目： | 1 |
| 电压电源： | 双 ± |
| 功率耗散（最大）： | 100mW |
| 工作温度： | -25°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 管件 |
| 输出数目和类型： | 1 电压，双极 |
| 采样率（每秒）： | 400k |
| 产品目录页面： | 785 (CN2011-ZH PDF) |
REV. B
–2–
AD7840–SPECIFICATIONS
(VDD = +5 V
5%, VSS = –5 V
5%, AGND = DGND = O V, REF IN = +3 V, RL = 2 k ,
CL = 100 pF. All specifications TMIN to TMAX unless othewise noted.)
Parameter
J, A
1
K, B
1
S
1
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
2
Signal to Noise Ratio
3 (SNR)
76
78
76
dB min
VOUT = 1 kHz Sine Wave, fSAMPLE = 100 kHz
Typically 82 dB at +25
°C for 0 < V
OUT < 20 kHz
4
Total Harmonic Distortion (THD) –78
–80
–78
dB max
VOUT = 1 kHz Sine Wave, fSAMPLE = 100 kHz
Typically –84 dB at +25
°C for 0 < V
OUT < 20 kHz
4
Peak Harmonic or Spurious Noise
–78
–80
–78
dB max
VOUT = 1 kHz Sine Wave, fSAMPLE = 100 kHz
Typically –84 dB at +25
°C for 0 < V
OUT < 20 kHz
4
DC ACCURACY
Resolution
14
Bits
Integral Nonlinearity
±2
±1
±2
LSB max
Differential Nonlinearity
±0.9
LSB max
Guaranteed Monotonic
Bipolar Zero Error
±10
LSB max
Positive Full Scale Error
5
±10
LSB max
Negative Full Scale Error
5
±10
LSB max
REFERENCE OUTPUT
6
REF OUT @ +25
°C
2.99
V min
3.01
V max
REF OUT TC
±60
ppm/
°C max
Reference Load Change
(
REF OUT vs. I)
–1
mV max
Reference Load Current Change (0–500
A)
REFERENCE INPUT
Reference Input Range
2.85
V min
3 V
± 5%
3.15
V max
Input Current
50
A max
LOGIC INPUTS
Input High Voltage, VINH
2.4
V min
VDD = 5 V ± 5%
Input Low Voltage, VINL
0.8
V max
VDD = 5 V
± 5%
Input Current, IIN
±10
A max
VIN = 0 V to VDD
Input Current (CS Input Only)
±10
A max
VIN =VSS to VDD
Input Capacitance, CIN
7
10
pF max
ANALOG OUTPUT
Output Voltage Range
±3
V nom
DC Output Impedance
0.1
typ
Short-Circuit Current
20
mA typ
AC CHARACTERISTICS7
Voltage Output Settling Time
Settling Time to within
±1/2 LSB of Final Value
Positive Full-Scale Change
4
s max
Typically 2
s
Negative Full-Scale Change
4
s max
Typically 2.5
s
Digital-to-Analog Glitch Impulse
10
nV secs typ
Digital Feedthrough
2
nV secs typ
POWER REQUIREMENTS
VDD
+5
V nom
±5% for Specified Performance
VSS
–5
V nom
±5% for Specified Performance
IDD
14
15
mA max
Output Unloaded, SCLK = +5 V. Typically 10 mA
ISS
6
7
mA max
Output Unloaded, SCLK = +5 V. Typically 4 mA
Power Dissipation
100
110
mW max
Typically 70 mW
NOTES
1Temperature ranges are as follows: J, K Versions, 0
°C to +70°C; A, B Versions, –25°C to +85°C; S Version, –55°C to +125°C.
2V
OUT (pk-pk) = ± 3 V
3SNR calculation includes distortion and noise components.
4Using external sample-and-hold (see Testing the AD7840).
5Measured with respect to REF IN and includes bipolar offset error.
6For capacitive loads greater than 50 pF, a series resistor is required (see Internal Reference section).
7Sample tested @ +25
°C to ensure compliance.
Specifications subject to change without notice.
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| AD7840-JN | 制造商: 功能描述: 制造商:undefined 功能描述: |
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