ICL7106 (LCD) & ICL7107 (LED)
Type: 3 1/2 Digit LCD/LED, Single-Chip A/D Converter
ADC Architecture: Dual-Slope
Used in Keithley 169, Digital Panel Meters
ICL 7129
Type: 4 1/2 Digit LCD, Single-Chip A/D Converter
ADC Architecture: Successive Integration
AKA TC129, TLC7129, TLC829
Used in:
METEX M-4650
UNI-T UT56, UT57
ELV LCD 4500 Panelmeter
ICL 7135
Type: 4 1/2 Digit BCD Output, Single-Chip A/D Converter
ADC Architecture: Dual-Slope
Used in:
HAMEG 8011
ELV DMM 7001
Keithley 228
TL500
AKA ALD500, TLC500, TC500, TSC500, C500 (DDR)
Type: 4 1/2 Digit BCD Output, Single-Chip A/D Converter
ADC Architecture: Dual-Slope
Used in:
ELV DMM 7002
RFT DIGITALVOLTMETER G-1006.500
LD110 & LD111 Digital & Analog Processor
Type: 3 1/2 Digit BCD Output, Dual-Chip A/D Converter
ADC Architecture: Charge Balance (Quantized Feedback)
Used in:
Tektronix DM502, DM505
Kontron DMM 3020
LD120 & LD121 Analog & Digital Processor
Type: 4 1/2 Digit BCD Output, Dual-Chip A/D Converter
ADC Architecture: Charge Balance (Quantized Feedback)
Used in:
KONTRON DMM 4020, 4021, 4040
SIEMENS B1040, B1045
Tektronix DM501
MAX133, MAX134
Type: 3 3/4 Digit DMM Integrated Circuit with uC-Interface
ADC Architecture: Successive Integration (see ICL 7129)
Used in:
Blackstar DMM 4503
ABB/BBC/Gossen/Metrawatt DMM M2035, M200x
High Integration DMM IC
ADC Architecture: Delta Sigma
Examples:
HYCON HY3131 (uC-Interface)
Dream Tech International DTM0660 (LCD-Interface)
FORTUNE SEMICONDUCTER CORPORATION FS9721 (LCD-Interface)
