参数资料
型号: ADS7818PG4
厂商: Texas Instruments
文件页数: 17/21页
文件大小: 0K
描述: IC 12BIT 500KHZ ADC CONV 8-DIP
产品培训模块: Data Converter Basics
标准包装: 50
位数: 12
采样率(每秒): 500k
数据接口: 串行
转换器数目: 1
功率耗散(最大): 20mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
供应商设备封装: 8-PDIP
包装: 管件
输入数目和类型: 1 个差分,单极
配用: 296-19913-ND - EVAL MOD FOR ADS7818
5
ADS7818
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C, VCC = +5V, fSAMPLE = 500kHz, fCLK = 16 fSAMPLE, and internal +2.5V reference, unless otherwise specified.
POWER SUPPLY REJECTION
vs POWER SUPPLY RIPPLE FREQUENCY
1
10
100
1k
10k
100k
1M
Power Supply Ripple Frequency (Hz)
Power
Supply
Rejection
(mV/V)
30
25
20
15
10
5
0
FREQUENCY SPECTRUM
(4096 Point FFT; f
IN = 10.9kHz, –0.2dB)
0
250
62.5
187.5
125
Frequency (kHz)
Amplitude
(dB)
–120
–100
–80
–60
–40
–20
0
FREQUENCY SPECTRUM
(4096 Point FFT; f
IN = 102kHz, –0.2dB)
Amplitude
(dB)
–100
–80
–60
–40
–20
0
250
62.5
187.5
125
Frequency (kHz)
–120
CHANGE IN FULL-SCALE ERROR
vs EXTERNAL REFERENCE VOLTAGE
2.3
2.0
2.5
2.1
2.2
2.4
External Reference Voltage (V)
Delta
from
V
REF
=
2.5V
(mV)
–1.2
0.2
–0.4
–0.6
–0.8
–1.0
–0.2
0.0
CHANGE IN OFFSET
vs EXTERNAL REFERENCE VOLTAGE
2.5
1.9
3.1
2.1
2.3
2.7
2.9
External Reference Voltage (V)
Delta
from
V
REF
=
2.5V
(mV)
–0.4
0.5
0.0
–0.1
–0.2
–0.3
0.1
0.2
0.3
0.4
PEAK-TO-PEAK NOISE
vs EXTERNAL REFERENCE VOLTAGE
2.3
2.0
2.5
2.1
2.2
2.4
External Reference Voltage (LSB)
Peak-to-Peak
Noise
(LSB)
0.40
0.70
0.65
0.60
0.55
0.50
0.45
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