- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄362144 > ADS7807UE4 Low-Power, 16-Bit, Sampling CMOS ANALOG-to-DIGITAL CONVERTER PDF資料下載
參數(shù)資料
| 型號(hào)： | ADS7807UE4 |
| 英文描述： | Low-Power, 16-Bit, Sampling CMOS ANALOG-to-DIGITAL CONVERTER |
| 中文描述： | 低功耗，16位，采樣CMOS模擬數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 14/24頁 |
| 文件大小： | 534K |
| 代理商： | ADS7807UE4 |
ADS7807
SBAS022C
14
www.ti.com
WITH RESISTORS
WITHOUT RESISTORS
WITH RESISTORS
WITHOUT RESISTORS
RANGE (V)
RANGE (mV)
RANGE (mV)
TYP (mV)
RANGE (% FS)
RANGE (% FS)
TYP
±
10
–
10
≤
BPZ
≤
10
0
≤
BPZ
≤
35
15
–
0.4
≤
G
≤
0.4
0.15
≤
G
(1)
≤
0.15
–
0.3
≤
G
≤
0.5
–
0.1
≤
G
(1)
≤
0.2
+0.05
+0.05
0 to 5
–
3
≤
UPO
≤
3
–
12
≤
UPO
≤
–
3
–
7.5
–
0.4
≤
G
≤
0.4
0.15
≤
G
(1)
≤
0.15
–
1.0
≤
G
≤
0.1
–
0.55
≤
G
(1)
≤
–
0.05
–
0.2
–
0.2
0 to 4
–
3
≤
UPO
≤
3
–
10.5
≤
UPO
≤
–
1.5
–
6
–
0.4
≤
G
≤
0.4
–
0.15
≤
G
(1)
≤
0.15
–
1.0
≤
G
≤
0.1
–
0.55
≤
G
(1)
≤
–
0.05
–
0.2
–
0.2
NOTE: (1) High Grade.
ered when choosing the accuracy and drift specifications of
the external resistors. In most applications, 1% metal-film
resistors will be sufficient.
The external resistors, see Figure 7b, may not be necessary
in some applications. These resistors provide compensation
for an internal adjustment of the offset and gain which allows
calibration with a single supply. Not using the external
resistors will result in offset and gain errors in addition to
those listed in the electrical characteristics section. Offset
refers to the equivalent voltage of the digital output when
converting with the input grounded. A positive gain error
occurs when the equivalent output voltage of the digital
output is larger than the analog input. Refer to Table VII for
nominal ranges of gain and offset errors with and without the
external resistors. Refer to Figure 8 for typical shifts in the
transfer functions which occur when the external resistors
are removed.
To further analyze the effects of removing any combination of
the external resistors, consider Figure 9. The combination of
the external and the internal resistors form a voltage divider
which reduces the input signal to a 0.3125V to 2.8125V input
range at the Capacitor Digital-to-Analog Converter (CDAC).
The internal resistors are laser trimmed to high relative accu-
racy to meet full scale specifications. The actual input imped-
ance of the internal resistor network looking into pin 1 or pin
3 however, is only accurate to
±
20% due to process variations.
This should be taken into account when determining the
effects of removing the external resistors.
REFERENCE
The ADS7807 can operate with its internal 2.5V reference or
an external reference. By applying an external reference to
pin 5, the internal reference can be bypassed; REFD (pin 26)
OFFSET ERROR
GAIN ERROR
TABLE VII. Range of Offset and Gain Errors With and Without External Resistors.
FIGURE 8. Typical Transfer Functions With and Without External Resistors.
INPUT
Digital Output
(b) Unipolar
–
Full-Scale
+Full-Scale
Analog Input
Digital Output
(a) Bipolar
–
Full-Scale
+Full-Scale
Analog Input
Typical Transfer Functions
With External Resistors
Typical Transfer Functions
Without External Resistors
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADS7807PBG4 | Low-Power, 16-Bit, Sampling CMOS ANALOG-to-DIGITAL CONVERTER |
| ADS7807PG4 | Low-Power, 16-Bit, Sampling CMOS ANALOG-to-DIGITAL CONVERTER |
| ADS7808UBE4 | 12-Bit 10us Serial CMOS Sampling ANALOG-to-DIGITAL CONVERTER |
| ADS7808UBG4 | 12-Bit 10us Serial CMOS Sampling ANALOG-to-DIGITAL CONVERTER |
| ADS7808UE4 | 12-Bit 10us Serial CMOS Sampling ANALOG-to-DIGITAL CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS7807UG4 | 功能描述:IC 16BIT 40KHZ SMPL ADC 28-SOIC 制造商:texas instruments 系列:- 包裝:管件 零件狀態(tài):在售 位數(shù):16 采樣率（每秒）:40k 輸入數(shù):1 輸入類型:單端 數(shù)據(jù)接口:SPI，并聯(lián) 配置:S/H-ADC 無線電 - S/H:ADC:1:1 A/D 轉(zhuǎn)換器數(shù):1 架構(gòu):SAR 參考類型:外部， 內(nèi)部 電壓 - 電源，模擬:5V 電壓 - 電源，數(shù)字:5V 特性:- 工作溫度:-40°C ~ 85°C 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商器件封裝:28-SOIC 基本零件編號(hào):ADS7807 標(biāo)準(zhǔn)包裝:20 |
| ADS7808 | 制造商:BB 制造商全稱:BB 功能描述:12-Bit 10ms Serial CMOS Sampling ANALOG-to-DIGITAL CONVERTER |
| ADS7808_07 | 制造商:BB 制造商全稱:BB 功能描述:12-Bit 10us Serial CMOS Sampling ANALOG-to-DIGITAL CONVERTER |
| ADS7808P | 制造商:Rochester Electronics LLC 功能描述:12-BIT, 100KHZ SAMPLING A/D - Bulk |
| ADS7808PB | 制造商:BB 制造商全稱:BB 功能描述:12-Bit 10us Serial CMOS Sampling ANALOG-to-DIGITAL CONVERTER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。