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参数资料
型号： AD7709BRUZ-REEL
厂商： Analog Devices Inc
文件页数： 28/32页
文件大小： 0K
描述： IC ADC 16BIT SIGMA-DELTA 24TSSOP
标准包装： 2,500
位数： 16
采样率（每秒）： 105
数据接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
转换器数目： 1
功率耗散（最大）： 3.75mW
电压电源： 单电源
工作温度： -40°C ~ 85°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： 带卷 (TR)
输入数目和类型： 2 个差分，单极；2 个差分，双极；4 个伪差分，单极；4 个伪差分，双极
REV. A
Parameter
AD7709A,
AD7709BUnit
Test Conditions
LOGIC OUTPUTS (Excluding XTAL2)
VOH, Output High Voltage
2
VDD – 0.6
V min
VDD = 3 V, ISOURCE = 100
mA
VOL, Output Low Voltage
2
0.4
V max
VDD = 3 V, ISINK = 100
mA
VOH, Output High Voltage
2
4V min
VDD = 5 V, ISOURCE = 200
mA
VOL, Output Low Voltage
2
0.4
V max
VDD = 5 V, ISINK = 1.6 mA
Floating-State Leakage Current
±10
mA max
Floating-State Output Capacitance
±10
pF typ
Data Output Coding
Binary
Unipolar Mode
Offset Binary
Bipolar Mode
I/O PORT
VINL, Input Low Voltage
2
0.8
V max
VDD = 5 V
0.4
V max
VDD = 3 V
VINH, Input High Voltage
2
2.0
V min
VDD = 3 V or 5 V
Input Currents
±2
mA max
VIN = VDD
–70
mA max
VIN = GND, Typically –40
mA @ VDD = 5 V
and –20
mA at VDD = 3 V; Weak Pull-Ups on
the Logic Inputs
Input Capacitance
10
pF typ
All Digital Inputs
VOH, Output High Voltage
2
VDD – 0.6
V min
VDD = 3 V, ISOURCE = 100
mA
VOL, Output Low Voltage
2
0.4
V max
VDD = 3 V, ISINK = 100
mA
VOH, Output High Voltage
2
4V min
VDD = 5 V, ISOURCE = 200
mA
VOL, Output Low Voltage
2
0.4
V max
VDD = 5 V, ISINK = 1.6 mA
Floating-State Output Leakage Current
±10
mA max
Floating-State Output Capacitance
±10
pF typ
START-UP TIME
From Power-On
300
ms typ
From Standby Mode
1
ms typ
OSCPD = 0
From Power-Down Mode
300
ms typ
OSCPD = 1
POWER REQUIREMENTS
Power Supply Voltage
VDD – GND
2.7/3.6
V min/max
VDD = 3 V nom
4.75/5.25
V min/max
VDD = 5 V nom
Power Supply Currents
IDD Current
1.5
mA max
VDD = 3 V, 1.25 mA typ
1.75
mA max
VDD = 5 V, 1.45 mA typ
IDD (Low Power Mode)
7
mA max
B Grade, VDD = 3 V, Standby Mode
7
mA typ
A Grade, VDD = 3 V, Standby Mode
1.5
mA max
B Grade, VDD = 3 V, Power-Down Mode
1.5
mA typ
A Grade, VDD = 3 V, Power-Down Mode
26
mA max
B Grade, VDD = 5 V, Standby Mode
26
mA typ
A Grade, VDD = 5 V, Standby Mode
6.5
mA max
B Grade, VDD = 5 V, Power-Down Mode
6.5
mA typ
A Grade, VDD = 5 V, Power-Down Mode
IDD for One Conversion Second
107
5
mA typ
VDD = 3 V, Standby Mode
134
5
mA typ
VDD = 5 V, Standby Mode
NOTES
1Temperature Range –40
∞C to +85∞C.
2Guaranteed by design and/or characterization data on production release.
3Full-scale error applies to both positive and negative full scale.
4Simultaneous 50 Hz and 60 Hz rejection is achieved using 19.79 Hz update rate. Normal mode rejection in this case is 60 dB min.
5When the part is placed in power-down mode for a single conversion/second, at an update rate of 19.79 Hz, the current consumption is higher compared to when the
part is placed in standby mode as the crystal oscillator takes approximately 100 ms to begin clocking. The device will, therefore, use full current for the conversion
time and the 100 ms period required for the oscillator to begin clocking. However, if the conversion rate is lower, the current consumption will be reduced so that it
is worthwhile to use the power-down rather than the standby mode.
Specifications subject to change without notice.
AD7709
–5–
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