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参数资料
| 型号： | LTC2351HUH-12#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | ADC |
| 英文描述： | 6-CH 12-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PQCC32 |
| 封装： | 5 X 5 MM, LEAD FREE, PLASTIC, MO-220WHHD, QFN-32 |
| 文件页数： | 19/20页 |
| 文件大小： | 224K |
| 代理商： | LTC2351HUH-12#PBF |
LTC2351-12
8
235112fa
PIN FUNCTIONS
SDO (Pin 1): Three-State Serial Data Output. Each set
of six output data words represent the six analog input
channels at the start of the previous conversion. Data for
CH0 comes out rst and data for CH5 comes out last. Each
data word comes out MSB rst.
OGND (Pin 2): Ground Return for SDO Currents. Connect
to the solid ground plane.
OVDD (Pin 3): Power Supply for the SDO Pin. OVDD
must be no more than 300mV higher than VDD and can
be brought to a lower voltage to interface to low voltage
logic families. The unloaded high state at SDO is at the
potential of OVDD.
CH0+ (Pin 4):
Non-Inverting Channel 0. CH0+ operates
fully differentially with respect to CH0– with a 0V to 2.5V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH0– (Pin 5):
Inverting Channel 0. CH0– operates fully
differentially with respect to CH0+ with a –2.5V to 0V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
GND (Pins 6, 9, 12, 13, 16, 19): Analog Grounds. These
ground pins must be tied directly to the solid ground plane
under the part. Analog signal currents ow through these
connections.
CH1+ (Pin 7):
Non-Inverting Channel 1. CH1+ operates
fully differentially with respect to CH1– with a 0V to 2.5V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH1– (Pin 8):
Inverting Channel 1. CH1– operates fully
differentially with respect to CH1+ with a –2.5V to 0V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH2+ (Pin 10):
Non-Inverting Channel 2. CH2+ operates
fully differentially with respect to CH2– with a 0V to 2.5V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH2– (Pin 11):
Inverting Channel 2. CH2– operates fully
differentially with respect to CH2+ with a –2.5V to 0V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH3+ (Pin 14):
Non-Inverting Channel 3. CH3+ operates
fully differentially with respect to CH3– with a 0V to 2.5V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH3– (Pin 15):
Inverting Channel 3. CH3– operates fully
differentially with respect to CH3+ with a –2.5V to 0V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH4+ (Pin 17):
Non-Inverting Channel 4. CH4+ operates
fully differentially with respect to CH4– with a 0V to 2.5V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH4– (Pin 18):
Inverting Channel 4. CH4– operates fully
differentially with respect to CH4+ with a –2.5V to 0V, or
±1.25V differential swing and a 0V to VDD absolute input
range.
CH5+ (Pin 20):
Non-Inverting Channel 5. CH5+ operates
fully differentially with respect to CH5– with a 0V to 2.5V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH5– (Pin 21):
Inverting Channel 5. CH5– operates fully
differentially with respect to CH5+ with a –2.5V to 0V, or
±1.25V differential swing and a 0V to VDD absolute input
range.
GND (PIN 22): Analog Ground for Reference. Analog
ground must be tied directly to the solid ground plane
under the part. Analog signal currents ow through this
connection. The 10μF reference bypass capacitor should
be returned to this pad.
VREF (Pin 23): 2.5V Internal Reference. Bypass to GND and
a solid analog ground plane with a 10μF ceramic capaci-
tor (or 10
μF tantalum in parallel with 0.1μF ceramic). Can
be overdriven by an external reference voltage between
2.55V and VDD, VCC.
VCC (Pin 24): 3V Positive Analog Supply. This pin sup-
plies 3V to the analog section. Bypass to the solid analog
ground plane with a 10μF ceramic capacitor (or 10μF
tantalum) in parallel with 0.1μF ceramic. Care should
be taken to place the 0.1μF bypass capacitor as close to
Pin 24 as possible. Pin 24 must be tied to Pin 25.
相关PDF资料 |
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| LTC2351HUH-12#TRPBF | 6-CH 12-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PQCC32 |
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| LTC2351HUH-14#PBF | 6-CH 14-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PQCC32 |
| LTC2351IUH-12 | 6-CH 12-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PQCC32 |
| LTC2351CUH-12#TR | 6-CH 12-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PQCC32 |
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