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Part: PGA204AU
Category:
Analog & Mixed-Signal Processing
-> Amplifiers
-> PGA (Programmable Gain Amplifiers)
-> Digitally Programmable Gain Amplifiers
Description: ti PGA204, Programmable Gain Instrumentation Amplifier
Company: Texas Instruments, Inc.
Datasheet: Download PGA204AU datasheet File size : 78 kB
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Datasheet text preview:
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PGA204 PGA205
Programmable Gain INSTRUMENTATION AMPLIFIER
FEATURES
q DIGITALLY PROGRAMMABLE GAIN: PGA204: G=1, 10, 100, 1000V/V PGA205: G=1, 2, 4, 8V/V q LOW OFFSET VOLTAGE: 50µV max q LOW OFFSET VOLTAGE DRIFT: 0.25µV/°C q LOW INPUT BIAS CURRENT: 2nA max q LOW QUIESCENT CURRENT: 5.2mA typ q NO LOGIC SUPPLY REQUIRED q 16-PIN PLASTIC DIP, SOL-16 PACKAGES
DESCRIPTION
The PGA204 and PGA205 are low cost, general purpose programmable-gain instrumentation amplifiers offering excellent accuracy. Gains are digitally selected: PGA204--1, 10, 100, 1000, and PGA205--1, 2, 4, 8V/V. The precision and versatility, and low cost of the PGA204 and PGA205 make them ideal for a wide range of applications. Gain is selected by two TTL or CMOS-compatible address lines, A0 and A1. Internal input protection can withstand up to ±40V on the analog inputs without damage. The PGA204 and PGA205 are laser trimmed for very low offset voltage (50µV), drift (0.25µV/°C) and high common-mode rejection (115dB at G=1000). They operate with power supplies as low as ±4.5V, allowing use in battery operated systems. Quiescent current is 5mA. The PGA204 and PGA205 are available in 16-pin plastic DIP, and SOL-16 surface-mount packages, specified for the 40°C to +85°C temperature range.
APPLICATIONS
q DATA ACQUISITION SYSTEM q GENERAL PURPOSE ANALOG BOARDS q MEDICAL INSTRUMENTATION
VO1 1 VIN 4 OPer-Voltage v rotection
V+ 13 PGA204 GA205
Feedback 12
A1 25k 25k
A1 A0 G igital D round + VIN
16 15 14 Digitally Selected Feedback Network A3 11 VO
5
OPer-Voltage v rotection 6
A2 25k 7 9 VO2 8 V 25k
10
Ref
VOS Adj
International Airport Industrial Park · Mailing Address: PO Box 11400 · Tucson, AZ 85734 · Street Address: 6730 S. Tucson Blvd. · Tucson, AZ 85706 Tel: (520) 746-1111 · Twx: 910-952-1111 · Cable: BBRCORP · Telex: 066-6491 · FAX: (520) 889-1510 · Immediate Product Info: (800) 548-6132
®
©
1991 Burr-Brown Corporation
PDS-1176A 1
Pri ted / U.S.A. PGA2n04in205 October, 1993
SBOS022
SPECIFICATIONS
ELECTRICAL
At TA = +25°C, VS = ±15V, and RL = 2k unless otherwise noted. PGA204BP, BU PARAMETER INPUT Offset Voltage, RTI vs Temperature vs Power Supply Long-Term Stability Impedance, Differential Common-Mode Input Common-Mode Range Safe Input Voltage Common-Mode Rejection CONDITIONS TA=+25°C TA=TMIN to TMAX VS=±4.5V to ±18V MIN TYP MAX MIN PGA204AP, AU TYP ±25+30/G ±0.25+5/G * * * * * MAX ±125+500/G ±1+10/G * UNITS µV µV/°C µV/V µV/mo || pF || pF V V dB dB dB dB ±5 * nA pA/°C nA pA/°C nV/ Hz nV/ Hz nV/ Hz µVp-p pA/Hz pA/Hz pAp-p ±0.05 ±0.05 ±0.05 ±0.1 * ±0.002 ±0.004 ±0.004 ±0.02 % % % % ppm/°C % of FSR % of FSR % of FSR % of FSR V V pF mA MHz kHz kHz kHz V/µs µs µs µs µs µs µs µs µs µs * * * V+ ±15 +5.2/4.2 ±18 ±6.5 +85 +125 80 * * * * * * ±7.5 * * * V V µA V V mA °C °C °C/W
PGA204
G=1, 10, 100, 1000V/V
VO=0V (see text) VCM=±10V, RS=1k G=1 G=10 G=100 G=1000
±10.5
±10+20/G ±50+100/G ±0.1+0.5/G ±0.25+5/G 0.5+2/G 3+10/G ±0.2+0.5/G 1010||6 1010||6 ±12.7 ±40 99 114 123 123 ±0.5 ±8 ±0.5 ±8 ±2 ±2
*
* 75 90 106 106 90 106 110 110 * * * * * * * * * * *
80 96 110 115
BIAS CURRENT vs Temperature Offset Current vs Temperature NOISE, Voltage, RTI(1): f=10Hz f=100Hz f=1kHz fB=0.1Hz to 10Hz Noise Current f=10Hz f=1kHz fB=0.1Hz to 10Hz GAIN, Error G100, G100, G100, G100, RS=0 RS=0 RS=0 RS=0
16 13 13 0.4 0.4 0.2 18
Gain vs Temperature Nonlinearity
G=1 G=10 G=100 G=1000 G=1 to 1000 G=1 G=10 G=100 G=1000 IO=5mA, TMIN to TMAX IO=5mA, TMIN to TMAX (V+)1.5 (V)+1.5
±0.005 ±0.01 ±0.01 ±0.02 ±2.5 ±0.0004 ±0.0004 ±0.0004 ±0.0008 (V+)1.3 (V)+1.3 1000 +23/17 1 80 10 1 0.7 22 23 100 1000 23 28 140 1300 70
±0.024 ±0.024 ±0.024 ±0.05 ±10 ±0.001 ±0.002 ±0.002 ±0.01 * *
* * * * * * * * * * * * * * * * * * * * * * * * * * *
OUTPUT Voltage, Positive(2) Negative(2) Load Capacitance Stability Short Circuit Current FREQUENCY RESPONSE Bandwidth, 3dB
Slew Rate Settling Time(3), 0.1%
0.01%
Overload Recovery DIGITAL LOGIC Digital Ground Voltage, VDG Digital Low Voltage Digital Input Current Digital High Voltage POWER SUPPLY, Voltage Current TEMPERATURE RANGE Specification Operating JA
G=1 G=10 G=100 G=1000 VO=±10V, G=10 G=1 G=10 G=100 G=1000 G=1 G=10 G=100 G=1000 50% Overdrive
0.3
*
V V 1 VDG +2 ±4.5 VIN=0V 40 40
(V+)4 VDG+0.8V
* *
* *
* Specification same as PGA204BP. NOTES: (1) Input-referred noise voltage varies with gain. See typical curves. (2) Output voltage swing is tested for ±10V min on ±11.4V power supplies. (3) Includes time to switch to a new gain.
®
PGA204/205
2
SPECIFICATIONS
ELECTRICAL
At TA = +25°C, VS = ±15V, and RL = 2k unless otherwise noted. PGA205BP, BU PARAMETER INPUT Offset Voltage, RTI vs Temperature vs Power Supply Long-Term Stability Impedance, Differential Common-Mode Input Common-Mode Range Safe Input Voltage Common-Mode Rejection CONDITIONS TA=+25°C TA=TMIN to TMAX VS=±4.5V to ±18V MIN TYP MAX MIN PGA205AP, AU TYP ±25+30/G ±0.25+5/G * * * * * MAX ±125+500/G ±1+10/G * UNITS µV µV/°C µV/V µV/mo ||pF ||pF V V dB dB dB dB ±5 * nA pA/°C nA pA/°C nV/ Hz nV/ Hz nV/ Hz µVp-p pA/ Hz pA/ Hz pAp-p ±0.05 ±0.05 ±0.05 ±0.05 * ±0.002 ±0.004 ±0.004 ±0.004 % % % % ppm/°C % of FSR % of FSR % of FSR % of FSR V V pF mA MHz kHz kHz kHz V/µs µs µs µs µs µs µs µs µs µs * * * V+ ±15 +5.2/4.2 ±18 ±6.5 +85 +125 80 * * * * * * ±7.5 * * * V V µA V V mA °C °C °C/W
PGA205
G=1, 2, 4, 8V/V
VO=0V (see text) VCM=±10V, RS=1k G=1 G=2 G=4 G=8
±10.5
±10+20/G ±50+100/G ±0.1+0.5/G ±0.25+5/G 0.5+2/G 3+10/G ±0.2+0.5/G 1010||6 1010||6 ±12.7 ±40 94 100 106 112 ±0.5 ±8 ±0.5 ±8 ±2 ±2
*
* 75 80 85 89 88 94 100 106 * * * * * * * * * * *
80 85 90 95
BIAS CURRENT vs Temperature Offset Current vs Temperature Noise Voltage, RTI(1): f=10Hz f=100Hz f=1kHz fB=0.1Hz to 10Hz Noise Current f=10Hz f=1kHz fB=0.1Hz to 10Hz GAIN, Error G=8, G=8, G=8, G=8, RS=0 RS=0 RS=0 RS=0
19 15 15 0.5 0.4 0.2 18
Gain vs Temperature Nonlinearity
G=1 G=2 G=4 G=8 G=1 to 8 G=1 G=2 G=4 G=8 IO=5mA, TMIN to TMAX IO=5mA, TMIN to TMAX (V+)1.5 (V)+1.5
±0.005 ±0.01 ±0.01 ±0.01 ±2.5 ±0.00024 ±0.00024 ±0.00024 ±0.00024 (V+)1.3 (V)+1.3 1000 +23/17 1 400 200 100 0.7 22 22 23 23 23 23 25 28 70
±0.024 ±0.024 ±0.024 ±0.024 ±10 ±0.001 ±0.002 ±0.002 ±0.002 * *
* * * * * * * * * * * * * * * * * * * * * * * * * * *
OUTPUT Voltage, Positive(2) Negative(2) Load Capacitance Stability Short Circuit Current FREQUENCY RESPONSE Bandwidth, 3dB
Slew Rate Settling Time(3), 0.1%
0.01%
Overload Recovery DIGITAL LOGIC INPUTS Digital Ground Voltage, VDG Digital Low Voltage Digital Low Current Digital High Voltage POWER SUPPLY, Voltage Current TEMPERATURE RANGE Specification Operating JA
G=1 G=2 G=4 G=8 VO=±10V, G=8 G=1 G=2 G=4 G=8 G=1 G=2 G=4 G=8 50% overdrive
0.3
*
V V 1 VDG+2 ±4.5 VIN=0V 40 40
(V+)4 VDG+0.8V
* *
* *
* Specification same as PGA204BP. NOTES: (1) Input-referred noise voltage varies with gain. See typical curves. (2) Output voltage swing is tested for ±10V min on ±11.4V power supplies. (3) Includes time to switch to a new gain.
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3
PGA204/205
Others parts begin by pg
PG-1 PG-2
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