參數(shù)資料
型號: ADS1191IPBSR
廠商: Texas Instruments
文件頁數(shù): 34/67頁
文件大小: 0K
描述: IC AFE 16BIT 8KSPS 1CH 32TQFP
標(biāo)準(zhǔn)包裝: 1,000
位數(shù): 16
通道數(shù): 1
電壓 - 電源,模擬: 2.7 V ~ 5.25 V
電壓 - 電源,數(shù)字: 1.7 V ~ 3.6 V
封裝/外殼: 32-TQFP
供應(yīng)商設(shè)備封裝: 32-TQFP(5x5)
包裝: 帶卷 (TR)
SBAS566A – DECEMBER 2011 – REVISED SEPTEMBER 2012
ELECTRICAL CHARACTERISTICS (continued)
Minimum and maximum specifications apply from –40°C to +85°C. Typical specifications are at +25°C. All specifications at
DVDD = 1.8 V, AVDD – AVSS = 3 V
(1), V
REF = 2.42 V, external fCLK = 512 kHz, data rate = 500 SPS, CFILTER = 4.7 nF
gain = 6, unless otherwise noted.
ADS1191, ADS1192
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
RIGHT LEG DRIVE (RLD) AMPLIFIER
Integrated noise
BW = 150 Hz
1.4
μVRMS
GBP
Gain bandwidth product
50 k
|| 10 pF load, gain = 1
100
kHz
SR
Slew rate
50 k
|| 10 pF load, gain = 1
0.07
V/
μs
THD
Total harmonic distortion
fIN = 100 Hz, gain = 1
–85
dB
CMIR
Common-mode input range
AVSS + 0.3
AVDD – 0.3
V
Common-mode resistor matching
Internal 200-k
resistor matching
0.1
%
ISC
Short-circuit current
1.1
mA
Quiescent power consumption
RLD amplifier
5
μA
LEAD-OFF DETECT
Frequency
See Register Map section for settings
0, fDR/4
kHz
ILEAD_OFF [1:0] = 00
6
nA
ILEAD_OFF [1:0] = 01
22
nA
Current
ILEAD_OFF [1:0] = 10
6
μA
ILEAD_OFF [1:0] = 11
22
μA
Current accuracy
±20
%
Comparator threshold accuracy
±30
mV
EXTERNAL REFERENCE
AVDD = 3 V, VREF = (VREFP – VREFN)
2
2.5
VDD – 0.3
V
Reference input voltage
AVDD = 5 V, VREF = (VREFP – VREFN)
2
4
VDD – 0.3
V
VREFN
Negative input
AVSS
V
VREFP
Positive input
AVSS + 2.5
V
Input impedance
120
k
INTERNAL REFERENCE
CONFIG2.VREF_4V = 0
2.42
V
Output voltage
CONFIG2.VREF_4V = 1
4.033
V
Output current drive
Available for external use
100
A
VREF accuracy
±0.5
%
Internal reference drift
45
ppm/°C
Settled to 0.2% with 10-F capacitor on
Start-up time
100
ms
VREFP pin
Quiescent current consumption
20
A
4
Copyright 2011–2012, Texas Instruments Incorporated
Product Folder Links: ADS1191 ADS1192
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