- 您現在的位置：買賣IC網 > PDF目錄6042 > AD8253ARMZ-R7 (Analog Devices Inc)IC AMP INST ICMOS LDRIFT 10MSOP PDF資料下載
參數資料
| 型號： | AD8253ARMZ-R7 |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 8/24頁 |
| 文件大小： | 0K |
| 描述： | IC AMP INST ICMOS LDRIFT 10MSOP |
| 標準包裝： | 1 |
| 系列： | iCMOS® |
| 放大器類型： | 儀表 |
| 電路數： | 1 |
| 轉換速率： | 20 V/µs |
| -3db帶寬： | 10MHz |
| 電流 - 輸入偏壓： | 5nA |
| 電壓 - 輸入偏移： | 150µV |
| 電流 - 電源： | 4.6mA |
| 電流 - 輸出 / 通道： | 37mA |
| 電壓 - 電源，單路/雙路(±)： | ±5 V ~ 15 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 10-MSOP |
| 包裝： | 標準包裝 |
| 產品目錄頁面： | 771 (CN2011-ZH PDF) |
| 其它名稱： | AD8253ARMZ-R7DKR |
AD8253
Data Sheet
Rev. B | Page 16 of 24
THEORY OF OPERATION
10k
REF
OUT
A3
–IN
+IN
WR
1.2k
+VS
–VS
+VS
–VS
+VS
–VS
A1
A0
2.2k
DGND
A1
A2
DIGITAL
GAIN
CONTROL
2.2k
+VS
–VS
+VS
–VS
+VS
–VS
+VS
–VS
0
69
83
-0
61
Figure 51. Simplified Schematic
The AD8253 is a monolithic instrumentation amplifier based
on the classic 3-op-amp topology, as shown in Figure 51. It is
fabricated on the Analog Devices, Inc., proprietary iCMOS
process that provides precision linear performance and a robust
digital interface. A parallel interface allows users to digitally
program gains of 1, 10, 100, and 1000. Gain control is achieved
by switching resistors in an internal precision resistor array (as
shown in Figure 51).
All internal amplifiers employ distortion cancellation circuitry
and achieve high linearity and ultralow THD. Laser-trimmed
resistors allow for a maximum gain error of less than 0.03% for
G = 1 and a minimum CMRR of 100 dB for G = 1000. A pinout
optimized for high CMRR over frequency enables the AD8253
to offer a guaranteed minimum CMRR over frequency of 80 dB
at 20 kHz (G = 1). The balanced input reduces the parasitics
that in the past had adversely affected CMRR performance.
GAIN SELECTION
This section describes how to configure the AD8253 for basic
operation. Logic low and logic high voltage limits are listed in
the Specifications section. Typically, logic low is 0 V and logic
high is 5 V; both voltages are measured with respect to DGND.
Refer to the specifications table (Table 2) for the permissible
voltage range of DGND. The gain of the AD8253 can be set
using two methods: transparent gain mode and latched gain
mode. Regardless of the mode, pull-up or pull-down resistors
should be used to provide a well-defined voltage at the A0 and
A1 pins.
Transparent Gain Mode
The easiest way to set the gain is to program it directly via a
logic high or logic low voltage applied to A0 and A1. Figure 52
shows an example of this gain setting method, referred to through-
out the data sheet as transparent gain mode. Tie WR to the
negative supply to engage transparent gain mode. In this mode,
any change in voltage applied to A0 and A1 from logic low to
logic high, or vice versa, immediately results in a gain change.
shows the AD8253 configured in transparent gain mode.
+15V
–15V
A0
A1
WR
+IN
+5V
–IN
10μF0.1F
G = 1000
DGND
REF
AD8253
NOTE:
1. IN TRANSPARENT GAIN MODE, WR IS TIED TO VS.
THE VOLTAGE LEVELS ON A0 AND A1 DETERMINE
THE GAIN. IN THIS EXAMPLE, BOTH A0 AND A1 ARE
SET TO LOGIC HIGH, RESULTING IN A GAIN OF 1000.
0
69
83
-05
1
Figure 52. Transparent Gain Mode, A0 and A1 = High, G = 1000
相關PDF資料 |
PDF描述 |
|---|---|
| SMCJ13CA | TVS BIDIRECT 1500W 13V SMC |
| PBC30SAAN | CONN HEADER .100 SINGL STR 30POS |
| SMCJ12CA | TVS BIDIRECT 1500W 12V SMC |
| OP270GSZ | IC OPAMP GP 5MHZ DUAL LN 16SOIC |
| SMCJ15CA | TVS BIDIRECT 1500W 15V SMC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD8253ARMZ-R71 | 制造商:AD 制造商全稱:Analog Devices 功能描述:10 MHz, 20 V/レs, G = 1, 10, 100, 1000 i CMOS㈢ Programmable Gain Instrumentation Amplifier |
| AD8253ARMZ-RL | 功能描述:IC AMP INST ICMOS LDRIFT 10MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:iCMOS® 標準包裝:150 系列:- 放大器類型:音頻 電路數:2 輸出類型:- 轉換速率:5 V/µs 增益帶寬積:12MHz -3db帶寬:- 電流 - 輸入偏壓:100nA 電壓 - 輸入偏移:500µV 電流 - 電源:6mA 電流 - 輸出 / 通道:50mA 電壓 - 電源，單路/雙路(±):4 V ~ 32 V，±2 V ~ 16 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:8-TSSOP 包裝:管件 |
| AD8253ARMZ-RL1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:10 MHz, 20 V/レs, G = 1, 10, 100, 1000 i CMOS㈢ Programmable Gain Instrumentation Amplifier |
| AD8253-EVALZ | 制造商:Analog Devices 功能描述:Evaluation Kit For 10 MHz, 20 V/US, G 1, 10, 100, 1000 CMOS Programmable Gain Instrumentation Amplifier 制造商:Analog Devices 功能描述:EVAL KIT FOR 10 MHZ, 20 V/US, G = 1, 10, 100, 1000 I CMOS PR - Boxed Product (Development Kits) |
| AD8253-EVALZ1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:10 MHz, 20 V/レs, G = 1, 10, 100, 1000 i CMOS㈢ Programmable Gain Instrumentation Amplifier |
發(fā)布緊急采購，3分鐘左右您將得到回復。