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参数资料
| 型号： | AD7265BSUZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 25/29页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 3CHAN 1MSPS 32TQFP |
| 设计资源： | AD7265 in Differential and Single-Ended Configurations Using AD8022 (CN0048) |
| 标准包装： | 500 |
| 位数： | 12 |
| 采样率（每秒）： | 1M |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 21mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-TQFP |
| 供应商设备封装： | 32-TQFP（7x7） |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 12 个单端，单极；6 个差分，单极；6 个伪差分，单极 |
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AD7265
Rev. A | Page 4 of 28
Parameter
Specification
Unit
Test Conditions/Comments
DC Leakage Current
±1
μA max
Input Capacitance
45
pF typ
When in track
10
pF typ
When in hold
REFERENCE INPUT/OUTPUT
Reference Output Voltage8
2.5
V min/V max
±0.2% max @ 25°C
Long-Term Stability
150
ppm typ
For 1000 hours
Output Voltage Hysteresis2
50
ppm typ
Reference Input Voltage Range
0.1/VDD
V min/V max
See Typical Performance Characteristics section
DC Leakage Current
±2
μA max
External reference applied to Pin DCAPA/Pin DCAPB
Input Capacitance
25
pF typ
DCAPA, DCAPB Output Impedance
10
Ω typ
Reference Temperature Coefficient
20
ppm/°C max
10
ppm/°C typ
VREF Noise
20
μV rms typ
LOGIC INPUTS
Input High Voltage, VINH
2.8
V min
Input Low Voltage, VINL
0.4
V max
Input Current, IIN
±15
nA typ
VIN = 0 V or VDRIVE
Input Capacitance, CIN3
5
pF typ
LOGIC OUTPUTS
Output High Voltage, VOH
VDRIVE 0.2
V min
Output Low Voltage, VOL
0.4
V max
Floating State Leakage Current
±1
μA max
Floating State Output Capacitance3
7
pF typ
Output Coding
Straight (natural) binary
SGL/DIFF = 1 with 0 V to VREF range selected
Twos complement
SGL/DIFF = 0; SGL/DIFF = 1 with 0 V to 2 × VREF range
CONVERSION RATE
Conversion Time
14
SCLK cycles
875 ns with SCLK = 16 MHz
Track-and-Hold Acquisition Time3
90
ns max
Full-scale step input; VDD = 5 V
110
ns max
Full-scale step input; VDD = 3 V
Throughput Rate
1
MSPS max
POWER REQUIREMENTS
VDD
2.7/5.25
V min/V max
VDRIVE
2.7/5.25
V min/V max
IDD
Digital I/Ps = 0 V or VDRIVE
Normal Mode (Static)
2.3
mA max
VDD = 5.25 V
Operational, fS = 1 MSPS
4
mA max
VDD = 5.25 V; 3.5 mA typ
fS = 1 MSPS
3.2
mA max
VDD = 3.6 V; 2.7 mA typ
Partial Power-Down Mode
500
μA max
Static
Full Power-Down Mode (VDD)
1
μA max
TA = 40°C to +85°C
2.8
μA max
TA > 85°C to 125°C
Power Dissipation
Normal Mode (Operational)
21
mW max
VDD = 5.25 V
Partial Power-Down (Static)
2.625
mW max
VDD = 5.25 V
Full Power-Down (Static)
5.25
μW max
VDD = 5.25 V, TA = 40°C to +85°C
1 Temperature range is 40°C to +125°C.
2 See Terminology section.
3 Sample tested during initial release to ensure compliance.
4 Guaranteed no missed codes to 12 bits.
5 VIN or VIN+ must remain within GND/VDD.
6 VIN = 0 V for specified performance. For full input range on VIN pin, see Figure 28 and Figure 29.
7 For full common-mode range, see Figure 24 and Figure 25.
8 Relates to Pin DCAPA or Pin DCAPB.
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