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參數資料
| 型號： | ADS-950MC |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 串行ADC |
| 英文描述： | 18-Bit, 500kHz, Low-Power Sampling A/D Converters |
| 中文描述： | 18位，為500kHz，低功耗采樣A / D轉換器 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 184K |
| 代理商： | ADS-950MC |
FEATURES
18-bit resolution
500kHz minimum sampling rate
No missing codes over full military temperature range
Very low power, 1.45 Watts
Small, 32-pin, side-brazed, ceramic TDIP
Edge-triggered
Excellent performance
Ideal for both time and frequency-domain applications
Low cost
operating temperature ranges. A proprietary, auto-calibrating,
error-correcting circuit enables the device to achieve specified
performance over the full military temperature range.
PRELIMINARY PRODUCT DATA
ADS -950
18-Bit, 500kHz, Low-Power
Sampling A/D Converters
GENERAL DESCRIPTION
The low-cost ADS-950 is an 18-bit, 500kHz sampling A/D
converter. This device accurately samples full-scale input
signals up to Nyquist frequencies with no missing codes. This
feature, combined with excellent signal-to-noise ratio (SNR)
and total harmonic distortion (THD), makes the ADS-950 the
ideal choice for both time-domain (medical imaging, scanners,
process control) and frequency-domain (radar, telecommunica-
tions, spectrum analysis) applications.
Packaged in a 32-pin, side-brazed, metal-sealed, ceramic
TDIP, the functionally complete ADS-950 contains a fast-
settling sample-hold amplifier, a subranging (two-pass) A/D
converter, an internal reference, timing/control logic, and error-
correction circuitry. Digital input and output levels are TTL, and
the ADS-950 only requires the rising edge of the start convert
pulse to operate.
Requiring ±15V and ±5V supplies, the ADS-950 typically
dissipates 1.45 Watts. The device is offered with a bipolar
(±5V) analog input range. Models are available for use in
either commercial (0 to +70°C) or military (–55 to +125°C)
INPUT/OUTPUT CONNECTIONS
Figure 1. ADS-950 Functional Block Diagram
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
BIT 2
BIT 1 (MSB)
ANALOG GROUND
ANALOG INPUT
+5V REFERENCE OUT
GAIN ADJUST
COMPENSATION
–15V SUPPLY
+15V SUPPLY
+5V ANALOG SUPPLY
–5V ANALOG SUPPLY
ANALOG GROUND
DIGITAL GROUND
+5V DIGITAL SUPPLY
EOC
START CONVERT
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
BIT 3
BIT 4
BIT 5
BIT 6
BIT 7
BIT 8
BIT 9
BIT 10
BIT 11
BIT 12
BIT 13
BIT 14
BIT 15
BIT 16
BIT 17
BIT 18 (LSB)
PIN
FUNCTION
PIN
FUNCTION
DATEL, Inc., Mansfield, MA 02048 (USA) Tel: (508) 339-3000, (800) 233-2765 Fax: (508) 339-6356 Email: sales@datel.com Internet: www.datel.com
REF
DAC
2
BIT 1 (MSB)
1 BIT 2
32 BIT 3
31 BIT 4
30 BIT 5
29 BIT 6
28 BIT 7
27 BIT 8
26 BIT 9
25 BIT 10
24 BIT 11
23 BIT 12
22 BIT 13
21 BIT 14
20 BIT 15
19 BIT 16
18 BIT 17
17 BIT 18 (LSB)
TIMING AND
CONTROL LOGIC
ANALOG INPUT 4
START CONVERT 16
EOC 15
–
+
S/H
BUFFER
D
FLASH
ADC
1
FLASH
ADC
2
AMP
GAIN
CIRCUIT
COMPENSATION 7
+5V REFERENCE OUT 5
10
+5V ANALOG
SUPPLY
11
–
5V ANALOG
SUPPLY
3, 12
ANALOG
GROUND
14
+5V DIGITAL
SUPPLY
9
+15V
SUPPLY
8
–
15V
SUPPLY
13
DIGITAL
GROUND
GAIN ADJUST 6
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADS-950MM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:18-Bit, 500kHz, Low-Power Sampling A/D Converters |
| ADS-951 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:18-Bit, 1MHz, Low-Power Sampling A/D Converters |
| ADS-951MC | 功能描述:模數轉換器 - ADC 0 to +70C 1.45W A/D 32pinTDIP 18Bit 1MHz RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS-951ME | 制造商:Murata Power Solutions 功能描述:Dual ADC 2-Step Flash 1Msps 18-bit Parallel 32-Pin TDIP |
| ADS953 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:18-Bit, 1MHz, Low-Distortion Sampling A/D Converters |
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