JPH0178434U - - Google Patents
Info
- Publication number
- JPH0178434U JPH0178434U JP1987175394U JP17539487U JPH0178434U JP H0178434 U JPH0178434 U JP H0178434U JP 1987175394 U JP1987175394 U JP 1987175394U JP 17539487 U JP17539487 U JP 17539487U JP H0178434 U JPH0178434 U JP H0178434U
- Authority
- JP
- Japan
- Prior art keywords
- analog
- digital converter
- input voltage
- amplifier
- digital
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000013256 coordination polymer Substances 0.000 description 1
Landscapes
- Analogue/Digital Conversion (AREA)
Description
第１図は本願の一実施例のアナログ・デイジタ
ル測定装置の主要部の構成を示すブロツク図、第
２図は従来のアナログ・デイジタル測定装置のブ
ロツク図である。
１４：可変増幅器、１４１：バツフア増幅器、
１４３：乗算型ＤＡＣ、１４５：リレー群、１４
９：出力段増幅器、２１：デイザー、２３：ＣＰ
Ｕ、２２：バイアス源、２４：加算増幅器、２５
：ＡＤＣ、２６：ピンコンパレータ。
FIG. 1 is a block diagram showing the configuration of the main parts of an analog/digital measuring device according to an embodiment of the present application, and FIG. 2 is a block diagram of a conventional analog/digital measuring device. 14: variable amplifier, 141: buffer amplifier,
143: Multiplying DAC, 145: Relay group, 14
9: Output stage amplifier, 21: dither, 23: CP
U, 22: bias source, 24: summing amplifier, 25
: ADC, 26: Pin comparator.
Claims (1)
コードを観測して逐次近似的に前記アナログ・デ
イジタル変換器の入力電圧を変化させることによ
り前記アナログ・デイジタル変換器のスレツシヨ
ルド電圧を求める測定装置において、 前記アナログ・デイジタル変換器に前記入力電
圧を与える増幅器はデイジタル制御信号に応答し
て増幅度を設定できることを特徴とするアナログ
・デイジタル変換器測定装置。[Claims for Utility Model Registration] The threshold voltage of the analog-to-digital converter is determined by observing the output code of the analog-to-digital converter to be measured and changing the input voltage of the analog-to-digital converter in successive approximations. An analog-to-digital converter measuring device, characterized in that an amplifier that supplies the input voltage to the analog-to-digital converter can set an amplification degree in response to a digital control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175394U JPH0178434U (en) | 1987-11-16 | 1987-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175394U JPH0178434U (en) | 1987-11-16 | 1987-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0178434U true JPH0178434U (en) | 1989-05-26 |
Family
ID=31467188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987175394U Pending JPH0178434U (en) | 1987-11-16 | 1987-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0178434U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55149883A (en) * | 1979-05-07 | 1980-11-21 | Seiko Epson Corp | Analog-digital converter for electric measuring device |
| JPS6041327A (en) * | 1983-08-16 | 1985-03-05 | Kinmon Seisakusho:Kk | Analog-digital converting device |
-
1987
- 1987-11-16 JP JP1987175394U patent/JPH0178434U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55149883A (en) * | 1979-05-07 | 1980-11-21 | Seiko Epson Corp | Analog-digital converter for electric measuring device |
| JPS6041327A (en) * | 1983-08-16 | 1985-03-05 | Kinmon Seisakusho:Kk | Analog-digital converting device |