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| 型号： | ADA4922-1ARDZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/20页 |
| 文件大小： | 0K |
| 描述： | IC ADC DRIVER 18BIT DIFF 8-SOIC |
| 标准包装： | 2,500 |
| 类型： | ADC 驱动器 |
| 应用： | 数据采集 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm Width）裸露焊盘 |
| 供应商设备封装： | 8-SOIC-EP |
| 包装： | 带卷 (TR) |
ADA4922-1
Rev. 0 | Page 14 of 20
THEORY OF OPERATION
The ADA4922-1 is dual amplifier that has been optimized to
drive a differential ADC from a single-ended input source with
a minimum number of external components (see Figure 41).
R
IN
OUT+
OUT–
REF
05681-002
Figure 41. Functional Diagram
The differential output voltage is defined as
VO, dm = VOUT+ VOUT
(1)
Each amplifier in Figure 41 is identical, and the value of Resistor R
is set at 600 Ω, yielding an optimal trade-off between output
differential noise, internal power dissipation, and overall
system linearity. For basic operation, the REF input is tied to
the midswing level of the input signal, which is often midsupply.
The input signal (referenced to REF) produces a differential
output signal with an overall gain of +2. Figure 42 shows typical
operation on ±12 V supplies with the source referenced to 0 V
and the REF pin tied to 0 V.
20
–10
0
50
05681-003
TIME (
μs)
VOLTAGE
(V)
10
0
–10
–20
10
5
0
–5
515
10
20
25
30
35
40
45
OUT+
OUT–
REF
VIN
Figure 42. Typical Input/Output Response—Centered Reference
If an application uses an input midswing voltage other than
midsupply, the REF pin needs to be offset to the input midswing
level to obtain outputs that do not exhibit a differential offset
(see Figure 43). If the voltage applied to the REF pin is different
from the midswing level of the input signal, a dc offset is
this condition when the input signal is referenced to a positive
level, and the REF pin is connected to 0 V.
10
–2.5
0
50
05681-004
TIME (
μs)
VOLTAGE
(V)
5
0
–5
–10
10
5
0
515
10
20
25
30
35
40
45
OUT+
OUT–
REF
VIN
Figure 43. Typical Input/Output Response—Equal Input/Reference
20
–10
0
50
05681-005
TIME (
μs)
VOLTAGE
(V)
15
10
5
0
–5
10
5
0
–5
515
10
20
25
30
35
40
45
OUT+
OUT–
REF
VIN
Figure 44. Typical Input/Output Response—Unequal Input/Reference
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADA4927-1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Ultralow Distortion Current Feedback Differential ADC Driver |
| ADA4927-1YCP-EBZ | 功能描述:BOARD EVAL FOR ADA4927-1YCP RoHS:是 类别:编程器，开发系统 >> 评估板 - 运算放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
| ADA4927-1YCPZ-R2 | 制造商:Analog Devices 功能描述:SP Amp Differential ADC Driver Single 11V 16-Pin LFCSP EP T/R 制造商:Analog Devices 功能描述:SP AMP DIFFERENTIAL ADC DRVR SGL 11V 16LFCSP EP - Tape and Reel 制造商:Analog Devices 功能描述:ANAADA4927-1YCPZ-R2 ULTRALW DISTORTION C 制造商:Analog Devices 功能描述:OP AMP CF DIFF 65MA LN 16LFCSP 制造商:Analog Devices 功能描述:OP AMP, CF, DIFF, 65MA, LN, 16LFCSP 制造商:Analog Devices 功能描述:OP AMP, CF, DIFF, 65MA, LN, 16LFCSP; No. of Amplifiers:1; Input Offset Voltage:1.3mV; Bandwidth:2.3GHz; Amplifier Case Style:LFCSP; No. of Pins:16; Supply Voltage Range:4.5V to 11V; Slew Rate:5000V/s; Supply Current:20mA; Operating ;RoHS Compliant: Yes |
| ADA4927-1YCPZ-R2 | 制造商:Analog Devices 功能描述:IC DIFF AMP 2.3GHZ 5000V/ LFCSP-16 |
| ADA4927-1YCPZ-R7 | 功能描述:IC OPAMP CF DIFF 65MA LN 16LFCSP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:- 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.6 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:45nA 电压 - 输入偏移:2000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:40mA 电压 - 电源，单路/双路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) 其它名称:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
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