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| 型號： | AD8610ARM-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 11/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP JFET 25MHZ PREC 8MSOP |
| 產(chǎn)品變化通告： | Product Discontinuance 27/Oct/2011 |
| 設(shè)計資源： | Precision, AC Reference Signal Attenuator Using AD5546/56 Multiplying DAC (CN0025) |
| 標準包裝： | 3,000 |
| 放大器類型： | J-FET |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 60 V/µs |
| 增益帶寬積： | 25MHz |
| 電流 - 輸入偏壓： | 3pA |
| 電壓 - 輸入偏移： | 85µV |
| 電流 - 電源： | 3mA |
| 電流 - 輸出 / 通道： | 45mA |
| 電壓 - 電源，單路/雙路(±)： | ±5 V ~ 13 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應商設(shè)備封裝： | 8-MSOP |
| 包裝： | 帶卷 (TR) |
AD8610/AD8620
Rev. F | Page 19 of 24
Input Offset Voltage Adjustment
Offset of AD8610 is very small and normally does not require
additional offset adjustment. However, the offset adjust pins can
be used as shown in Figure 66 to further reduce the dc offset. By
using resistors in the range of 50 kΩ, offset trim range is ±3.3 mV.
R1
V+
VOUT
V–
AD8610
02
73
0-
0
6
7
6
1
5
4
3
2
Figure 66. Offset Voltage Nulling Circuit
Programmable Gain Amplifier (PGA)
The combination of low noise, low input bias current, low input
offset voltage, and low temperature drift make the AD8610/
AD8620 a perfect solution for programmable gain amplifiers.
PGAs are often used immediately after sensors to increase the
dynamic range of the measurement circuit. Historically, the large
on resistance of switches (combined with the large IB currents
of amplifiers) created a large dc offset in PGAs. Recent and
improved monolithic switches and amplifiers completely remove
these problems. A PGA discrete circuit is shown in Figure 67.
In Figure 67, when the 10 pA bias current of the AD8610 is
dropped across the (<5 Ω) RON of the switch, it results in a
negligible offset error.
When high precision resistors are used, as in the circuit of
Figure 67, the error introduced by the PGA is within the
LSB requirement for a 16-bit system.
VIN
VOUT
AD8610
7
4
6
5
1
2
3
IN1
S1
D1
10k
1k
+5V
–5V
IN2
S2
D2
IN3
S3
D3
IN4
S4
D4
ADG452
3
2
14
15
11
10
6
7
VL
VDD
13
12
1
16
9
8
74HC139
VSS
4
GND
5
1k
100
11
5pF
G = +1
G = +10
G = +100
G = +1000
+5V
–5V
Y0
Y1
Y2
Y3
G
A
B
A0
A1
02
73
0
-06
7
100
Figure 67. High Precision PGA
1. Room temperature error calculation due to RON and IB
ΔVOS = IB × RON = 2 pA × 5 Ω = 10 pV
Total Offset = AD8610 (Offset) + ΔVOS
Total Offset = AD8610 (Offset_Trimmed) + ΔVOS
Total Offset = 5 μV + 10 pV ≈ 5 μV
2. Full temperature error calculation due to RON and IB
ΔVOS (@ 85°C) = IB (@ 85°C) × RON (@ 85°C) =
250 pA × 15 Ω = 3.75 nV
3. The temperature coefficient of switch and AD8610/AD8620
combined is essentially the same as the TCVOS of the
AD8610/AD8620.
ΔVOS/ΔT(total) = ΔVOS/ΔT(AD8610/AD8620) +
ΔVOS/ΔT(IB × RON)
ΔVOS/ΔT(total) = 0.5 μV/°C + 0.06 nV/°C ≈ 0.5 μV/°C
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| AD8610ARM-REEL9 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD8610ARMZ | 制造商:Analog Devices 功能描述:OP AMP JFET PREC LN WB 8MSOP 制造商:Analog Devices 功能描述:OP AMP, JFET, PREC, LN, WB, 8MSOP 制造商:Analog Devices 功能描述:OP AMP, JFET, PREC, LN, WB, 8MSOP; Op Amp Type:Low Noise; No. of Amplifiers:1; Slew Rate:50V/s; Supply Voltage Range: 5V to 13V; Amplifier Case Style:MSOP; No. of Pins:8; Bandwidth:25MHz; Operating Temperature Min:-40C; ;RoHS Compliant: Yes |
| AD8610ARMZ-R2 | 制造商:Analog Devices 功能描述:OP Amp Single GP ±13V 8-Pin MSOP T/R |
| AD8610ARMZ-R7 | 功能描述:IC OPAMP JFET PREC LN WB 8MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:13 V/µs 增益帶寬積:3MHz -3db帶寬:- 電流 - 輸入偏壓:65pA 電壓 - 輸入偏移:3000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應商設(shè)備封裝:8-PDIP 包裝:管件 |
| AD8610ARMZ-REEL | 功能描述:IC OPAMP JFET 25MHZ PREC 8MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
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