参数资料
| 型号： | AD7841BSZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/13页 |
| 文件大小： | 0K |
| 描述： | IC DAC 14BIT OCTAL V-OUT 44-MQFP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 1 |
| 设置时间： | 31µs |
| 位数： | 14 |
| 数据接口： | 并联 |
| 转换器数目： | 8 |
| 电压电源： | 模拟和数字，双 ± |
| 功率耗散（最大）： | 303mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-QFP |
| 供应商设备封装： | 44-MQFP（10x10） |
| 包装： | 托盘 |
| 输出数目和类型： | 8 电压，单极；8 电压，双极 |
| 采样率（每秒）： | 32k |
| 产品目录页面： | 785 (CN2011-ZH PDF) |
| 配用： | EVAL-AD7841EBZ-ND - BOARD EVAL FOR AD7841 |
–2–
AD7841–SPECIFICATIONS
(VCC = 5 V
5%; VDD = 15 V
10%; VSS = –15 V
10%; GND = DUTGND =
0 V; RL = 5 k
and CL = 50 pF to GND, TA
1 = T
MIN to TMAX, unless otherwise noted)
Parameter
A
B
Unit
Test Conditions/Comments
ACCURACY
Resolution
14
Bits
Relative Accuracy
± 4
± 2
LSB max
Differential Nonlinearity
–0.9/2
± 1
LSB max
Guaranteed Monotonic Over Temperature for All
Grades
Zero-Scale Error
± 8
LSB max
VREF(+) = +5 V, VREF(–) = –5 V. Typically within
±2 LSB
Full-Scale Error
± 8
LSB max
VREF(+) = +5 V, VREF(–) = –5 V. Typically within
±2 LSB
Gain Error
± 2
LSB typ
VREF(+) = +5 V, VREF(–) = –5 V
Gain Temperature Coefficient
2
0.5
ppm FSR/
°C typ
10
ppm FSR/
°C max
DC Crosstalk
2
120
V max
See Terminology. Typically 75
V
REFERENCE INPUTS
2
DC Input Impedance
100
M
typ
Input Current
± 1
A max
Per Input. Typically
±0.03 A
VREF(+) Range
0/5
V min/max
VREF(–) Range
–5/0
V min/max
[VREF(+) – VREF(–)]
2/10
V min/max
For Specified Performance. Can Go as Low as 0 V,
but Performance Not Guaranteed
DUTGND INPUTS
2
DC Input Impedance
60
k
typ
Max Input Current
±0.3
mA typ
Per Input
Input Range
3
–2/+2
V min/max
OUTPUT CHARACTERISTICS
2
Output Voltage Swing
VSS + 2.5 V to
V typ
VOUT = 2
× (V
REF(–) + [VREF(+) – VREF(–)]
× D)
VDD – 2.5 V
– VDUTGND
Short Circuit Current
15
mA max
Resistive Load
5
k
min
To 0 V
Capacitive Load
50
pF max
To 0 V
DC Output Impedance
0.5
max
DIGITAL INPUTS
2
VINH, Input High Voltage
2.4
V min
VINL, Input Low Voltage
0.8
V max
IINH, Input Current
Total for All Pins
@ 25
°C
± 1
A max
TMIN to TMAX
±10
A max
CIN, Input Capacitance
10
pF max
POWER REQUIREMENTS
4
VCC
4.75/+5.25
V min/max
For Specified Performance
VDD
15 V
± 10%
15 V
± 10%
V min/max
For Specified Performance
VSS
–15 V
± 10%
–15 V
± 10%
V min/max
For Specified Performance
Power Supply Sensitivity
2
Full Scale/V
DD
90
dB typ
Full Scale/V
SS
90
dB typ
ICC
0.5
mA max
VINH = VCC, VINL = GND. Dynamic Current
IDD
10
mA max
Outputs Unloaded. Typically 8 mA
ISS
10
mA max
Outputs Unloaded. Typically 8 mA
NOTES
1Temperature range for A and B Versions: –40
°C to +85°C.
2Guaranteed by characterization. Not production tested.
3
See DUTGND Voltage Range section.
4The AD7841 is functional with power supplies of
±12 V ±10% with reduced output range. Output amplifier requires 2.5 V of head room at the bottom and top ends
of the transfer for function. At 12 V supplies it is recommended to restrict the reference range to
± 4 V.
Specifications subject to change without notice.
REV. B
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