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參數資料
| 型號： | MAX1060BEEI+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 7/20頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 10BIT 400KSPS 28-QSOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 位數： | 10 |
| 采樣率（每秒）： | 400k |
| 數據接口： | 并聯(lián) |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 667mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 28-QSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數目和類型： | 8 個單端，單極；8 個單端，雙極；4 個偽差分，單極；4 個偽差分，雙極 |
___________Applications Information
Power-On Reset
When power is first applied, internal power-on reset cir-
cuitry activates the MAX1060/MAX1064 in external
clock mode and sets INT high. After the power supplies
stabilize, the internal reset time is 10s, and no conver-
sions should be attempted during this phase. When
using the internal reference, 500s are required for
VREF to stabilize.
Internal and External Reference
The MAX1060/MAX1064 can be used with an internal
or external reference voltage. An external reference
can be connected directly to REF or REFADJ.
An internal buffer is designed to provide +2.5V at REF
for both devices. The internally trimmed +1.22V refer-
ence is buffered with a +2.05V/V gain.
Internal Reference
The full-scale range with the internal reference is +2.5V
with unipolar inputs and ±1.25V with bipolar inputs. The
internal reference buffer allows for small adjustments
(±100mV) in the reference voltage (Figure 7).
Note: The reference buffer must be compensated with
an external capacitor (4.7F min) connected between
REF and GND to reduce reference noise and switching
spikes from the ADC. To further minimize reference
noise, connect a 0.01F capacitor between REFADJ
and GND.
External Reference
With the MAX1060/MAX1064, an external reference can
be placed at either the input (REFADJ) or the output
(REF) of the internal reference-buffer amplifier.
Using the REFADJ input makes buffering the external
reference unnecessary. The REFADJ input impedance
is typically 17k
.
When applying an external reference to REF, disable
the internal reference buffer by connecting REFADJ to
VDD. The DC input resistance at REF is 25k
.
Therefore, an external reference at REF must deliver up
to 200A DC load current during a conversion and
have an output impedance less than 10
. If the refer-
ence has higher output impedance or is noisy, bypass
it close to the REF pin with a 4.7F capacitor.
Power-Down Modes
To save power, place the converter in a low-current
shutdown state between conversions. Select standby
mode or shutdown mode using bits D6 and D7 of the
control byte (Tables 1 and 2). In both software power-
down modes, the parallel interface remains active, but
the ADC does not convert.
Standby Mode
While in standby mode, the supply current is 1mA (typ).
The part powers up on the next rising edge on WR and
is ready to perform conversions. This quick turn-on time
allows the user to realize significantly reduced power
consumption for conversion rates below 400ksps.
Shutdown Mode
Shutdown mode turns off all chip functions that draw
quiescent current, reducing the typical supply current
to 2A immediately after the current conversion is com-
pleted. A rising edge on WR causes the MAX1060/
MAX1064 to exit shutdown mode and return to normal
operation. To achieve full 10-bit accuracy with a 4.7F
reference bypass capacitor, 500s is required after
power-up. Waiting 500s in standby mode, instead of in
full-power mode, can reduce power consumption by a
factor of 3 or more. When using an external reference,
MAX1060/MAX1064
400ksps, +5V, 8-/4-Channel, 10-Bit ADCs
with +2.5V Reference and Parallel Interface
______________________________________________________________________________________
15
Table 5. Data-Bus Output (8 + 2 Parallel
Interface)
VDD = +5V
330k
50k
GND
50k
0.01
F
4.7
F
REFADJ
REF
MAX1060
MAX1064
Figure 7. Reference Voltage Adjustment with External
Potentiometer
PIN
HBEN = 0
HBEN = 1
D0
Bit 0 (LSB)
Bit 8
D1
Bit 1
Bit 9 (MSB)
BIPOLAR
(UNI/BIP = 0)
UNIPOLAR
(UNI/BIP = 1)
D2
Bit 2
Bit 9
0
D5
Bit 5
Bit 9
0
D6
Bit 6
Bit 9
0
D7
Bit 7
Bit 9
0
D4
Bit 4
Bit 9
0
D3
Bit 3
Bit 9
0
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX1061 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:250ksps, +3V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface |
| MAX1061ACEI | 功能描述:模數轉換器 - ADC 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 |
| MAX1061ACEI+ | 功能描述:模數轉換器 - ADC 3V 10Bit 8Ch 400ksps w/2.5V Ref & Prl Int 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 |
| MAX1061ACEI+T | 功能描述:模數轉換器 - ADC 3V 10Bit 8Ch 400ksps w/2.5V Ref & Prl Int 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 |
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