PGA102

PGA102 BURR-BROWN | Alldatasheet

Document overview

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Technical content

FEATURES

l DIGITALLY PROGRAMMABLE GAIN: G = 1, 10, 100 l LOW GAIN ERROR: 0.025% max l FAST SETTLING: 2.8µs to 0.01% l 16-PIN PLASTIC AND CERAMIC DIP

APPLICATIONS

l DATA ACQUISITION AMPLIFIER l FIXED-GAIN AMPLIFIER l AUTOMATIC GAIN SCALING

DESCRIPTION

The PGA102 is a high speed, digitally programmable- gain amplifier. CMOS/TTL-compatible inputs select gains of 1, 10 or 100V/V. Each gain has an indepen- dent input terminal, providing an input multiplexer function. On-chip metal film gain-set resistors are laser-trimmed to provide excellent gain accuracy. High speed input circuitry allows multiplexing of high speed signals. The PGA102 is available in 16-pin plastic and ceramic DIP packages. Commercial, industrial and military temperature range models are available. High Speed PROGRAMMABLE GAIN AMPLIFIER VIN2 1.2kΩ 10.8kΩ 1.33kΩ 10.8kΩ 1.2kΩ 10.8kΩ Gain/Channel Select PGA102 Gain Adj. VIN1 Common Force Common Sense Gain Adj. VIN3 –VCC +V CC Logic Ground X10 Select X100 Select Offset Adjust VOUT 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 © 1985 Burr-Brown Corporation PDS-579C Printed in U.S.A. September, 1993

At +25°C, ±VCC = 15VDC unless otherwise specified. GAIN vs Temperature G = 1 ±0.4 ±5 * * * * ppm/ °C Nonlinearity R L = 2kΩ , G = 1 0.001 0.003 * * * * % of FS G = 10 0.002 0.005 * * * * % of FS G = 100 0.003 0.01 * * * * % of FS RATED OUTPUT Voltage R L = 2kΩ± 10 ±12.5 * * * * V Current V OUT = 10V ±5 ±10 * * * * mA Short Circuit Current ±10 ±25 * * * * mA Output Resistance 0.01 * * Ω Load Capacitance For Stable Operation 2000 * * pF INPUT OFFSET VOLTAGE Initial(2) G = 1 ±200 ±500 ±100 ±250 * ±1500 µV G = 10 ±70 ±200 ±50 ±100 * ±600 µV G = 100 ±70 ±200 ±50 ±100 * ±600 µV vs Temperature G = 1 ±5 ±20 * * ±7 ±50 µV/°C vs Supply Voltage ±5 < VCC < ±18V INPUT BIAS CURRENT Initial T A = +25°C ±20 ±50 * * * * nA Over Temperature T A MIN to TA MAX ±25 ±60 * * * * nA ANALOG INPUT CHARACTERISTICS Voltage Range Linear Operation ±10 ±12 * * * * V Resistance 7 X 10 8 ** Ω Capacitance 4 * * pF INPUT NOISE Voltage Noise f B = 0.1Hz to 10Hz G = 1 4.5 * * µVp-p G = 10 1.5 * * µVp-p G = 100 0.6 * * µVp-p Voltage Noise Density f O = 1Hz, G = 1 490 * * nV/ √Hz G = 10 178 * * nV/ √Hz G = 100 83 * * nV/ √Hz fO = 10Hz, G = 1 155 * * nV/ √Hz G = 10 56 * * nV/ √Hz G = 100 20 * * nV/ √Hz fO = 100Hz, G = 1 93 * * nV/ √Hz G = 100 31 * * nV/ √Hz G = 100 18 * * nV/ √Hz fO = 1kHz, G = 1 79 * * nV/ √Hz G = 10 31 * * nV/ √Hz G = 100 18 * * nV/ √Hz Current Noise f B = 0.1Hz to 10Hz 76 * * pAp-p Current Noise Density f O = 1Hz 8.8 * * pA/ √Hz fO = 10Hz 2.8 * * pA/ √Hz fO = 100Hz 0.99 * * pA/ √Hz fO = 1kHz 0.43 * * pA/ √Hz DYNAMIC RESPONSE ±3dB Bandwidth Small Signal, G = 1 1500 * * kHz G = 10 750 * * kHz G = 100 250 * * kHz Full Power Bandwidth VOUT = ±10V, RL = 2kΩ 160 * * kHz Slew Rate V OUT = ±10V Step, R L = 2kΩ 69 V / µs PGA102AG PGA102BG, SG PGA102KP PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS

PGA102AG PGA102BG PGA102KP PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS SPECIFICATIONS (CONT) ELECTRICAL At +25°C, ±VCC = 15VDC unless otherwise specified. The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems. DYNAMIC RESPONSE (CONT) Settling Time (0.1%) V OUT = 10V Step, G = 1 1.6 * * µs G = 10 2.2 * * µs G = 100 5.2 * * µs Settling Time (0.01%) V OUT = 10V Step, G = 1 2.8 * * µs G = 10 2.8 * * µs G = 100 8.2 * * µs Overload Recovery 50% Overdrive, G = 1 2.5 * * µs Time, 0.1% (see Performance Curve) CROSSTALK DC ±10V to Both Off Channels –155 * * dB 60Hz ±10V to Both Off Channels –144 * * dB DIGITAL INPUT CHARACTERISTICS Input “Low” Threshold V IL(3) on Pin 1 or 2 VLTC+0.8 * * V Input “Low” Current 1 * * µA Input “High” Threshold V IH(3) on Pin 1 or 2 VLTC+2 1 * * * * V Input “High” Current 0.1 1 * * * * µA Logic Threshold Control VLTC on Pin 3 –V CC VCC – 4 * * * * V Switching Time(4) Between Channels 1 * * µs POWER SUPPLY Rated Voltage ±15 * * VDC Voltage Range ±5 ±18 * * * * VDC Quiescent Current V OUT = 0V ±2.4 ±3.3 * * * * mA No External Load, VOUT = ±10V ±5.3 * * mA TEMPERATURE RANGE Specification, KP Grade T A MIN to TA MAX 0 +70 °C AG and BG Grades –25 +85 * * °C SG Grade –55 +125 °C Operating –55 +125 * * –25 +85 °C Storage –65 +150 * * –55 +125 °C Thermal Resistance θJA 100 * * °C/W * Specification same as AG grade. NOTES: (1) Gain inaccuracy is the percent error between the actual and ideal gain selected. It may be externally adjusted to zero for gains of 10 and 100. (2) Offset voltage can be adjusted for any one channel. Adjustment affects temperature drift by approximately ±0.3µV/°C for each 100µV of offset adjusted. (3) Voltage on the logic threshold control pin, VLTC, adjusts the threshold for “Low” and “High” logic levels. (4) Total time to settle equals switching time plus settling time of the newly selected gain.

VIN1 (X1) VIN2 (X10) VIN3 (X100) +VCC VOUT NC (1) –VCC Offset Adjust Offset Adjust Gain Adjust (X10) Gain Adjust (X100) NOTE: (1) No Internal Connection. ABSOLUTE MAXIMUM RATINGS PACKAGE INFORMATION PACKAGE DRAWING MODEL PACKAGE NUMBER (1) PGA102AG 16-Pin Hermetic DIP 109 PGA102BG 16-Pin Hermetic DIP 109 PGA102SG 16-Pin Hermetic DIP 109 PGA102KP 16-Pin Plastic DIP 180 NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix D of Burr-Brown IC Data Book.

ORDERING INFORMATION

MODEL PACKAGE TEMPERATURE RANGE PGA102AG 16-Pin Hermetic DIP –25 °C to +85°C PGA102BG 16-Pin Hermetic DIP –25 °C to +85°C PGA102SG 16-Pin Hermetic DIP –55 °C to +125°C PGA102KP 16-Pin Plastic DIP 0 °C to +70°C

SMALL SIGNAL STEP RESPONSE Time (µs) 100 –100 G = 1 Output (mV) 2468 1 0 1 2 G = 10 G =100 SLEW RATE vs TEMPERATURE Temperature (°C) Slew Rate (V/µs) –60 –40 0 20 40 60 80 100 120 140–20 Negative Positive SMALL SIGNAL FREQUENCY RESPONSE Frequency (Hz) Gain (dB) –10 1k 10k100 100k 1M 10M G =10 G = 100 G = 1 Large Signal Large Signal SETTLING TIME vs TEMPERATURE Temperature (°C) Settling Time (µs) –60 –40 0 20 40 60 80 100 120 140–20 G = 1, 10 G = 100 NONLINEARITY vs TEMPERATURE Temperature (°C) Nonlinearity (% FS) –60 .006 .005 .004 .003 .002 .001 –40 0 20 40 60 80 100 120 140–20 G = 10 G = 100 G = 1 GAIN ERROR vs TEMPERATURE Temperature (°C) Gain Error (%) –60 0.1 .075 .05 .025 –.025 –.05 –40 0 20 40 60 80 100 120 140–20 G = 100 G = 10 G = 1 TYPICAL PERFORMANCE CURVES TA = +25°C, ±VCC = 15VDC unless otherwise noted.

QUIESCENT CURRENT vs TEMPERATURE Temperature (°C) –60 –20–40 0 20 100 Quiescent Current (mA) 14040 60 80 120 VCC = ±5V VCC = ±15V POWER SUPPLY REJECTION vs FREQUENCY Frequency (Hz) 120 100 10010 1k 10k 100k Power Supply Rejection (dB) G = 1 G = 10 G = 100 INPUT CROSSTALK vs FREQUENCY Frequency (Hz) –40 –60 –80 –100 –120 –140 –160 10010 1k 10k 100k Input Crosstalk (dB) INPUT VOLTAGE AND CURRENT NOISE vs FREQUENCY Frequency (Hz) 100 0.1 10010 1k 10k 100k Voltage Noise Density (nV/√Hz) 100 0.1 Current Noise Density (pA/√Hz) G = 10 G = 1 Voltage Noise Current Noise (G = 1 to 100) G = 100 OVERLOAD RECOVERY vs INPUT OVERLOAD Input Overload Voltage (V) Overload Recovery Time (µs) 51 0 1 5 G = 10 G = 1 G = 100 LARGE SIGNAL STEP RESPONSE Time (µs) –10 Output (V) 2468 1 0 1 2 G = 1 G = 10 G = 100 TYPICAL PERFORMANCE CURVES (CONT) TA = +25°C, ±VCC = 15VDC unless otherwise noted.