參數(shù)資料
型號(hào): LTC2487IDETRPBF
廠商: Linear Technology Corporation
英文描述: 16-Bit 2-/4-Channel ADC with PGA, Easy Drive and I2C Interface
中文描述: 16位2-/4-Channel型ADC PGA巡回賽,輕松驅(qū)動(dòng)和I2C接口
文件頁(yè)數(shù): 11/32頁(yè)
文件大小: 612K
代理商: LTC2487IDETRPBF
LTC2487
2487fa
pin FuncTions
selected inputs (IN
+
and IN
) provide a bipolar input range
V
IN
= (IN
+
– IN
) from –0.5 V
REF
/Gain to 0.5 V
REF
/Gain.
Outside this input range, the converter produces unique
over-range and under-range output codes.
CH0 to CH3 (Pin 8-Pin 11):
Analog Inputs. May be pro-
grammed for single-ended or differential mode.
V
CC
(Pin 12):
Positive Supply Voltage. Bypass to GND with
a 10μF tantalum capacitor in parallel with a 0.1μF ceramic
capacitor as close to the part as possible.
REF
+
, REF
(Pin 13, Pin 14):
Differential Reference Input.
The voltage on these pins can have any value between
GND and V
CC
as long as the reference positive input,
REF
+
, remains more positive than the negative reference
input, REF
, by at least 0.1V. The differential voltage (V
REF
= REF
+
– REF
) sets the full-scale range (–0.5 V
REF
/Gain
to 0.5 V
REF
/Gain) for all input channels.
Exposed Pad (Pin 15):
Ground. This pin is ground and
must be soldered to the PCB ground plane. For prototyping
purposes, this pin may remain floating.
FuncTional block DiagraM
AUTOCALIBRATION
AND CONTROL
DIFFERENTIAL
3RD ORDER
Σ
MODULATOR
DECIMATING FIR
ADDRESS
INTERNAL
OSCILLATOR
I
2
C
INTERFACE
GND
V
CC
CH0
CH1
CH2
CH3
COM
MUX
IN
+
IN
CA0
CA1
SCL
REF
+
REF
SDA
F
(INT/EXT)
2487 BD
+
1.7k
TEMP
SENSOR
相關(guān)PDF資料
PDF描述
LTC2489IDETRPBF 16-Bit 2-/4-Channel ADC with Easy Drive Input Current Cancellation and I2C Interface
LTC2489 16-Bit 2-/4-Channel ADC with Easy Drive Input Current Cancellation and I2C Interface
LTC2489CDEPBF 16-Bit 2-/4-Channel ADC with Easy Drive Input Current Cancellation and I2C Interface
LTC2489CDETRPBF 16-Bit 2-/4-Channel ADC with Easy Drive Input Current Cancellation and I2C Interface
LTC2489IDEPBF 16-Bit 2-/4-Channel ADC with Easy Drive Input Current Cancellation and I2C Interface
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